{"id":10123,"date":"2026-09-18T07:58:42","date_gmt":"2026-09-18T07:58:42","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=10123"},"modified":"2026-09-18T07:58:42","modified_gmt":"2026-09-18T07:58:42","slug":"a-practical-guide-to-botanical-ingredient-testing","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/pt\/a-practical-guide-to-botanical-ingredient-testing\/","title":{"rendered":"Quando os resultados dos seus exames laboratoriais n\u00e3o correspondem ao Certificado de An\u00e1lise (COA) do fornecedor: um guia pr\u00e1tico para testes de ingredientes bot\u00e2nicos"},"content":{"rendered":"<h1><strong>Quando os resultados dos seus exames laboratoriais n\u00e3o correspondem ao Certificado de An\u00e1lise (COA) do fornecedor: um guia pr\u00e1tico para testes de ingredientes bot\u00e2nicos<\/strong><\/h1>\n<p>Um ingrediente bot\u00e2nico chega acompanhado de um certificado de an\u00e1lise que indica um teor de 98,01 TP3T. Seu laborat\u00f3rio analisa a remessa e informa um teor de 95,11 TP3T.<\/p>\n<p>Voc\u00ea deve rejeitar o material, solicitar uma substitui\u00e7\u00e3o ou repetir a an\u00e1lise?<\/p>\n<p>Primeiro, verifique se os dois laborat\u00f3rios mediram a mesma caracter\u00edstica com base nos mesmos crit\u00e9rios de relato. Diferen\u00e7as na prepara\u00e7\u00e3o das amostras, nos padr\u00f5es de refer\u00eancia, na filtragem e nos c\u00e1lculos podem gerar resultados que parecem contradit\u00f3rios.<\/p>\n<p>Este guia explica o que deve ser verificado antes de se chegar a uma conclus\u00e3o \u2014 e como os equipamentos de laborat\u00f3rio, os materiais de vidro e os consum\u00edveis afetam a investiga\u00e7\u00e3o.<\/p>\n<p><em>Divulga\u00e7\u00e3o editorial: A Changhong Chemical e a Longchang Chemical s\u00e3o empresas afiliadas pertencentes ao mesmo grupo empresarial.<\/em><\/p>\n<h2>1. Verifique o que significa a porcentagem apresentada<\/h2>\n<p>Antes de comparar n\u00fameros, compare suas defini\u00e7\u00f5es.<\/p>\n<p>Uma anota\u00e7\u00e3o como \u201c98% por HPLC\u201d deixa v\u00e1rias quest\u00f5es sem resposta:<\/p>\n<ul>\n<li>Isso representa a porcentagem da \u00e1rea cromatogr\u00e1fica ou um ensaio quantitativo?<\/li>\n<li>O resultado \u00e9 apresentado na forma recebida, seca ou anidra?<\/li>\n<li>Isso se refere a um \u00fanico composto identificado ou a um grupo de compostos?<\/li>\n<li>Trata-se de um limite de especifica\u00e7\u00e3o ou do resultado medido para esse lote?<\/li>\n<\/ul>\n<p>Uma especifica\u00e7\u00e3o do produto descreve os requisitos de aceita\u00e7\u00e3o. Um Certificado de An\u00e1lise (COA) de lote registra os resultados ou as declara\u00e7\u00f5es de conformidade de um lote espec\u00edfico. Esses documentos t\u00eam finalidades diferentes.<\/p>\n<h3>Um exemplo hipot\u00e9tico: 98,0% e 95,1% podem ser compat\u00edveis<\/h3>\n<p>Suponha que um material tenha:<\/p>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Par\u00e2metro<\/th>\n<th>Valor hipot\u00e9tico<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Teor relatado em base anidra<\/td>\n<td>98.0%<\/td>\n<\/tr>\n<tr>\n<td>Teor de \u00e1gua da amostra recebida<\/td>\n<td>3.0%<\/td>\n<\/tr>\n<tr>\n<td>Ensaio correspondente com base no produto tal como recebido<\/td>\n<td>95.06%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<p>Se o m\u00e9todo exigir apenas uma corre\u00e7\u00e3o para a \u00e1gua, a rela\u00e7\u00e3o \u00e9:<\/p>\n<p><strong>Teor no estado em que foi recebido = Teor anidro \u00d7 (1 \u2212 Fra\u00e7\u00e3o de \u00e1gua)<\/strong><\/p>\n<p><strong>98,01 TP3T \u00d7 0,970 = 95,061 TP3T<\/strong><\/p>\n<p>Neste exemplo simplificado, um resultado de aproximadamente 95,1% n\u00e3o contradiz necessariamente o valor de 98,0%. A base de relato explica essa diferen\u00e7a aparente.<\/p>\n<p>Este c\u00e1lculo \u00e9 meramente ilustrativo e n\u00e3o representa o resultado de nenhum produto comercial. Ele n\u00e3o deve ser aplicado a porcentagens de \u00e1rea cromatogr\u00e1fica nem a m\u00e9todos que exijam corre\u00e7\u00f5es diferentes.<\/p>\n<p>Al\u00e9m disso, n\u00e3o se deve substituir automaticamente o teor de \u00e1gua pela perda por secagem. A perda por secagem pode incluir outras subst\u00e2ncias vol\u00e1teis, enquanto a an\u00e1lise de Karl Fischer determina especificamente a presen\u00e7a de \u00e1gua quando aplicada adequadamente \u00e0 amostra. A Sartorius explica essa distin\u00e7\u00e3o.<\/p>\n<h2>2. Verifique a amostra antes de proceder ao diagn\u00f3stico de falhas no instrumento<\/h2>\n<p>Comece pela rastreabilidade.<\/p>\n<p>Verifique se o Certificado de An\u00e1lise (COA) do fornecedor, o r\u00f3tulo do recipiente e o registro do seu laborat\u00f3rio identificam o mesmo lote e a mesma classe. Em seguida, analise como a amostra para teste foi obtida e manuseada.<\/p>\n<p>Algumas perguntas que vale a pena fazer s\u00e3o:<\/p>\n<ul>\n<li>A amostra foi coletada de acordo com um plano de amostragem adequado?<\/li>\n<li>Foi realizada alguma mistura necess\u00e1ria antes da subamostragem?<\/li>\n<li>O cont\u00eainer foi exposto \u00e0 umidade ou a condi\u00e7\u00f5es inadequadas de armazenamento?<\/li>\n<li>As amostras do fornecedor e do laborat\u00f3rio receptor foram coletadas em momentos diferentes?<\/li>\n<li>Existe uma amostra retida dispon\u00edvel para an\u00e1lise?<\/li>\n<\/ul>\n<p>A realiza\u00e7\u00e3o de testes repetidos em uma pequena amostra n\u00e3o permite determinar se essa amostra \u00e9 representativa da remessa.<\/p>\n<p>Registre o hist\u00f3rico de amostragem e armazenamento antes de abrir outro recipiente ou preparar solu\u00e7\u00f5es adicionais. Essas informa\u00e7\u00f5es ajudam a distinguir um problema de amostragem de uma diferen\u00e7a anal\u00edtica.<\/p>\n<h2>3. Revis\u00e3o: Pesagem e dilui\u00e7\u00e3o em conjunto<\/h2>\n<p>A concentra\u00e7\u00e3o que chega ao instrumento depende de cada etapa da prepara\u00e7\u00e3o.<\/p>\n<h3>A legibilidade da balan\u00e7a n\u00e3o corresponde ao peso m\u00ednimo da amostra<\/h3>\n<p>Uma balan\u00e7a com precis\u00e3o de 0,1 mg n\u00e3o garante automaticamente uma precis\u00e3o aceit\u00e1vel para todas as amostras de baixa massa. Seu peso m\u00ednimo utiliz\u00e1vel depende do desempenho em condi\u00e7\u00f5es reais de opera\u00e7\u00e3o e da incerteza aceit\u00e1vel para a medi\u00e7\u00e3o. A METTLER TOLEDO descreve esses fatores.<\/p>\n<p>Verifique se tanto a amostra quanto o padr\u00e3o de refer\u00eancia foram pesados dentro da faixa de trabalho qualificada da balan\u00e7a.<\/p>\n<p>Veja tamb\u00e9m:<\/p>\n<ul>\n<li>Eletricidade est\u00e1tica, correntes de ar e leituras inst\u00e1veis.<\/li>\n<li>Absor\u00e7\u00e3o de umidade durante a pesagem.<\/li>\n<li>Material que permanece nos recipientes de pesagem ou nos utens\u00edlios de transfer\u00eancia.<\/li>\n<li>Erros de transcri\u00e7\u00e3o em missas gravadas.<\/li>\n<\/ul>\n<h3>Considere os recipientes de vidro como parte da medi\u00e7\u00e3o<\/h3>\n<p>Para a prepara\u00e7\u00e3o quantitativa, utilize equipamento volum\u00e9trico adequado ao m\u00e9todo e \u00e0 precis\u00e3o exigida.<\/p>\n<p>Confirme o volume do frasco, a configura\u00e7\u00e3o da pipeta, a sequ\u00eancia de dilui\u00e7\u00e3o e as unidades. Verifique se todas as transfer\u00eancias necess\u00e1rias foram quantitativas e se as solu\u00e7\u00f5es foram misturadas adequadamente.<\/p>\n<p>Reconstrua o c\u00e1lculo completo da dilui\u00e7\u00e3o a partir dos registros originais. Uma dilui\u00e7\u00e3o intermedi\u00e1ria omitida ou um volume inserido incorretamente podem causar uma discrep\u00e2ncia consistente, mesmo quando os cromatogramas parecem normais.<\/p>\n<h2>4. Investigar a extra\u00e7\u00e3o e a filtra\u00e7\u00e3o<\/h2>\n<p>Uma solu\u00e7\u00e3o l\u00edmpida, por si s\u00f3, n\u00e3o comprova que a prepara\u00e7\u00e3o da amostra tenha sido adequada.<\/p>\n<p>No caso de materiais bot\u00e2nicos, verifique se o m\u00e9todo de prepara\u00e7\u00e3o especificado permite recuperar adequadamente o constituinte alvo da matriz da amostra. As vari\u00e1veis relevantes podem incluir a composi\u00e7\u00e3o do solvente, o tempo de extra\u00e7\u00e3o, a temperatura e a rela\u00e7\u00e3o entre a massa da amostra e o volume do solvente.<\/p>\n<p>Alterar essas condi\u00e7\u00f5es sem determinar seu efeito pode dificultar a compara\u00e7\u00e3o dos resultados.<\/p>\n<h3>Um filtro de seringa pode alterar mais do que apenas o teor de part\u00edculas<\/h3>\n<p>A sele\u00e7\u00e3o do filtro exige aten\u00e7\u00e3o \u00e0 compatibilidade com o solvente, \u00e0 recupera\u00e7\u00e3o do analito e \u00e0s subst\u00e2ncias liberadas pelo filtro. O tamanho dos poros, por si s\u00f3, n\u00e3o \u00e9 suficiente. A Agilent aborda a recupera\u00e7\u00e3o por filtra\u00e7\u00e3o e a limpeza qu\u00edmica.<\/p>\n<p>Durante o desenvolvimento de um m\u00e9todo ou uma investiga\u00e7\u00e3o aprovada, algumas compara\u00e7\u00f5es \u00fateis podem incluir:<\/p>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Verificar<\/th>\n<th>Pergunta que esta resposta ajuda a esclarecer<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Branco de solvente filtrado<\/td>\n<td>O filtro gera sinais de interfer\u00eancia?<\/td>\n<\/tr>\n<tr>\n<td>Materiais alternativos adequados para membranas<\/td>\n<td>A recupera\u00e7\u00e3o do analito depende da membrana?<\/td>\n<\/tr>\n<tr>\n<td>Por\u00e7\u00f5es sucessivas de filtrado<\/td>\n<td>A recupera\u00e7\u00e3o muda \u00e0 medida que passa mais solu\u00e7\u00e3o?<\/td>\n<\/tr>\n<tr>\n<td>Uma prepara\u00e7\u00e3o de refer\u00eancia estabelecida e adequada<\/td>\n<td>A filtragem introduz um vi\u00e9s mensur\u00e1vel?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<p>Defina os crit\u00e9rios de aceita\u00e7\u00e3o de acordo com o desempenho esperado do m\u00e9todo. N\u00e3o presuma que uma membrana adequada para um ingrediente ter\u00e1 o mesmo desempenho para outro.<\/p>\n<p>Qualquer prepara\u00e7\u00e3o para fins de compara\u00e7\u00e3o deve permanecer compat\u00edvel com o sistema anal\u00edtico; amostras que contenham part\u00edculas n\u00e3o devem ser injetadas simplesmente para se obter um resultado \u201cn\u00e3o filtrado\u201d.<\/p>\n<h2>5. Distinguir a porcentagem de \u00e1rea na HPLC do ensaio quantitativo<\/h2>\n<p>Um pico principal de grande intensidade \u00e9 uma informa\u00e7\u00e3o \u00fatil, mas n\u00e3o determina todos os aspectos da qualidade do material.<\/p>\n<p>A porcentagem da \u00e1rea cromatogr\u00e1fica expressa a propor\u00e7\u00e3o da resposta integrada do detector atribu\u00edda a um pico em condi\u00e7\u00f5es especificadas. O ensaio quantitativo utiliza um procedimento definido de calibra\u00e7\u00e3o e c\u00e1lculo para estimar a quantidade de um analito.<\/p>\n<p>Esses resultados n\u00e3o s\u00e3o automaticamente intercambi\u00e1veis.<\/p>\n<p>A resposta do detector varia de acordo com os compostos, e o m\u00e9todo deve separar adequadamente o analito das interfer\u00eancias relevantes. A Agilent descreve a estimativa de pureza com base na \u00e1rea, enquanto o guia de desenvolvimento de m\u00e9todos da Merck explica a import\u00e2ncia da especificidade e de outras caracter\u00edsticas de valida\u00e7\u00e3o. <a href=\"https:\/\/www.agilent.com\/cs\/library\/applications\/5991-9085EN_OpenLab_CDS_Sample_Purity_part1_appnote.pdf\">Estimativa de pureza da Agilent<\/a>, <a href=\"https:\/\/www.sigmaaldrich.com\/deepweb\/assets\/sigmaaldrich\/marketing\/global\/documents\/446\/037\/hplc-method-dev-guide-br6818en-ms.pdf\">Desenvolvimento de m\u00e9todos de HPLC pela Merck<\/a>.<\/p>\n<p>Para comparar os resultados, solicite informa\u00e7\u00f5es suficientes para compreender:<\/p>\n<ul>\n<li>A abordagem de medi\u00e7\u00e3o e calibra\u00e7\u00e3o.<\/li>\n<li>Identidade e valor atribu\u00eddo do padr\u00e3o de refer\u00eancia.<\/li>\n<li>Condi\u00e7\u00f5es cromatogr\u00e1ficas relevantes.<\/li>\n<li>Regras de integra\u00e7\u00e3o e c\u00e1lculo.<\/li>\n<li>Resultados da avalia\u00e7\u00e3o da adequa\u00e7\u00e3o do sistema.<\/li>\n<li>Base de relat\u00f3rio e fatores de corre\u00e7\u00e3o.<\/li>\n<\/ul>\n<p>Um cromatograma sem o contexto do m\u00e9todo e dos c\u00e1lculos pode n\u00e3o resolver a discrep\u00e2ncia.<\/p>\n<p>Al\u00e9m disso, \u00e9 importante distinguir entre inje\u00e7\u00f5es repetidas e prepara\u00e7\u00f5es independentes. As inje\u00e7\u00f5es repetidas de um mesmo frasco servem principalmente para avaliar a repetibilidade da inje\u00e7\u00e3o e dos instrumentos. Pesar e preparar as amostras separadamente ajuda a avaliar a variabilidade introduzida em etapas anteriores do procedimento.<\/p>\n<h2>6. Verifique o padr\u00e3o de refer\u00eancia e o hist\u00f3rico da solu\u00e7\u00e3o<\/h2>\n<p>Dois laborat\u00f3rios podem utilizar equipamentos semelhantes e, ainda assim, obter resultados diferentes se seus padr\u00f5es ou solu\u00e7\u00f5es forem distintos.<\/p>\n<p>Analise a documenta\u00e7\u00e3o do padr\u00e3o de refer\u00eancia, o valor atribu\u00eddo, as condi\u00e7\u00f5es de armazenamento e o prazo de validade aplic\u00e1vel. Confirme se qualquer corre\u00e7\u00e3o necess\u00e1ria foi aplicada de forma consistente e se n\u00e3o foi contabilizada duas vezes.<\/p>\n<p>Em seguida, examine as solu\u00e7\u00f5es preparadas:<\/p>\n<ul>\n<li>Elas foram analisadas dentro de um per\u00edodo de estabilidade estabelecido?<\/li>\n<li>As condi\u00e7\u00f5es de armazenamento foram adequadas?<\/li>\n<li>A evapora\u00e7\u00e3o seria poss\u00edvel?<\/li>\n<li>Foram registradas precipita\u00e7\u00f5es vis\u00edveis ou outras altera\u00e7\u00f5es?<\/li>\n<li>O padr\u00e3o e a amostra foram tratados de maneira consistente com o m\u00e9todo?<\/li>\n<\/ul>\n<p>Essas perguntas ajudam a identificar se a compara\u00e7\u00e3o envolve solu\u00e7\u00f5es equivalentes, e n\u00e3o apenas configura\u00e7\u00f5es equivalentes dos instrumentos.<\/p>\n<h2>7. Solicite um pacote de documenta\u00e7\u00e3o \u00fatil<\/h2>\n<p>Uma conversa eficaz com o fornecedor come\u00e7a com uma solicita\u00e7\u00e3o precisa.<\/p>\n<p>No caso de ingredientes bot\u00e2nicos, solicite a especifica\u00e7\u00e3o atual e o Certificado de An\u00e1lise (COA) do lote em quest\u00e3o, juntamente com informa\u00e7\u00f5es suficientes sobre os m\u00e9todos utilizados para interpretar o resultado relatado. Compradores que estejam avaliando materiais por meio de <a href=\"https:\/\/longchangextracts.com\/\">Longchang extracts\u00a0<\/a> can use the following checklist when requesting documentation and samples.<\/p>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Information to request<\/th>\n<th>Why it matters<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Product identity, grade, and lot number<\/td>\n<td>Connects the documents to the material being evaluated<\/td>\n<\/tr>\n<tr>\n<td>Current specification<\/td>\n<td>Identifies the agreed acceptance requirements<\/td>\n<\/tr>\n<tr>\n<td>Lot-specific COA<\/td>\n<td>Distinguishes batch results from advertised grades<\/td>\n<\/tr>\n<tr>\n<td>Assay definition, units, and reporting basis<\/td>\n<td>Establishes whether results are comparable<\/td>\n<\/tr>\n<tr>\n<td>Method reference and revision<\/td>\n<td>Identifies the analytical procedure<\/td>\n<\/tr>\n<tr>\n<td>Relevant sample preparation and calculation details<\/td>\n<td>Supports investigation of differences<\/td>\n<\/tr>\n<tr>\n<td>Reference standard information<\/td>\n<td>Clarifies the quantitative basis<\/td>\n<\/tr>\n<tr>\n<td>Supporting chromatograms, where available<\/td>\n<td>Helps assess separation and integration<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<p>A concise request might read:<\/p>\n<blockquote><p>Please provide the current specification and COA for the proposed lot, including the assay method reference, reporting basis, and reference standard information. To support comparison with our incoming inspection, please also provide relevant sample preparation, calculation, and chromatographic information where available.<\/p><\/blockquote>\n<p>Not every supplier can disclose a complete proprietary method. The immediate objective is to obtain enough information for a meaningful technical comparison.<\/p>\n<h2>8. Investigate Differences Without Testing Until Something Passes<\/h2>\n<p>If the discrepancy remains, agree on a documented investigation.<\/p>\n<p>Preserve the original results and records. Check calculations and preparation history, then select further work based on a specific hypothesis\u2014for example, a reporting-basis difference, filter-related loss, or incomplete extraction.<\/p>\n<p>Possible next steps include independent preparations, testing an appropriately retained sample, or arranging comparison testing with an agreed method. Additional testing should follow the laboratory\u2019s quality procedures; a favourable repeat result does not automatically invalidate the original result.<\/p>\n<p>Keep the investigation proportionate to the decision. Confirming an assay discrepancy does not resolve separate questions about identity, contaminants, or suitability for the intended application.<\/p>\n<p>The most useful outcome is a documented explanation of the difference, supported by evidence, and a clear basis for accepting, rejecting, or further evaluating the material.<\/p>","protected":false},"excerpt":{"rendered":"<p>When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing A botanical ingredient arrives with a certificate of analysis reporting 98.0% assay. Your laboratory tests the shipment and reports 95.1%. Should you reject the material, request a replacement, or repeat the analysis? First, establish whether the two laboratories measured [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-10123","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing - Changhong Chemical<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/changhongchemical.com\/pt\/a-practical-guide-to-botanical-ingredient-testing\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing - Changhong Chemical\" \/>\n<meta property=\"og:description\" content=\"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing A botanical ingredient arrives with a certificate of analysis reporting 98.0% assay. Your laboratory tests the shipment and reports 95.1%. Should you reject the material, request a replacement, or repeat the analysis? First, establish whether the two laboratories measured [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/changhongchemical.com\/pt\/a-practical-guide-to-botanical-ingredient-testing\/\" \/>\n<meta property=\"og:site_name\" content=\"Changhong Chemical\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-18T07:58:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2024\/02\/logo-jpeg.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Changhong Chemical\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Changhong Chemical\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/\"},\"author\":{\"name\":\"Changhong Chemical\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#\\\/schema\\\/person\\\/2a9593ff69d6db8f8ca0567ca3ed6b5d\"},\"headline\":\"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing\",\"datePublished\":\"2026-09-18T07:58:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/\"},\"wordCount\":1485,\"publisher\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#organization\"},\"articleSection\":[\"News\"],\"inLanguage\":\"pt-BR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/\",\"name\":\"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing - Changhong Chemical\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#website\"},\"datePublished\":\"2026-09-18T07:58:42+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/a-practical-guide-to-botanical-ingredient-testing\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/changhongchemical.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#website\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/\",\"name\":\"Changhong Chemical\",\"description\":\"China chemical manufacturer \uff06 supplier\",\"publisher\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/changhongchemical.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#organization\",\"name\":\"Changhong Chemical\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/changhongchemical.com\\\/wp-content\\\/uploads\\\/2020\\\/08\\\/cropped-longchang-logo.png\",\"contentUrl\":\"https:\\\/\\\/changhongchemical.com\\\/wp-content\\\/uploads\\\/2020\\\/08\\\/cropped-longchang-logo.png\",\"width\":512,\"height\":512,\"caption\":\"Changhong Chemical\"},\"image\":{\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/changhongchemical.com\\\/#\\\/schema\\\/person\\\/2a9593ff69d6db8f8ca0567ca3ed6b5d\",\"name\":\"Changhong Chemical\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-BR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g\",\"caption\":\"Changhong Chemical\"},\"sameAs\":[\"https:\\\/\\\/changhongchemical.com\"],\"url\":\"https:\\\/\\\/changhongchemical.com\\\/pt\\\/author\\\/infolongchangchemical-com\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Quando os resultados dos seus exames laboratoriais n\u00e3o correspondem ao Certificado de An\u00e1lise (COA) do fornecedor: Um guia pr\u00e1tico para testes de ingredientes bot\u00e2nicos - Changhong Chemical","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/changhongchemical.com\/pt\/a-practical-guide-to-botanical-ingredient-testing\/","og_locale":"pt_BR","og_type":"article","og_title":"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing - Changhong Chemical","og_description":"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing A botanical ingredient arrives with a certificate of analysis reporting 98.0% assay. Your laboratory tests the shipment and reports 95.1%. Should you reject the material, request a replacement, or repeat the analysis? First, establish whether the two laboratories measured [&hellip;]","og_url":"https:\/\/changhongchemical.com\/pt\/a-practical-guide-to-botanical-ingredient-testing\/","og_site_name":"Changhong Chemical","article_published_time":"2026-09-18T07:58:42+00:00","og_image":[{"width":1000,"height":1000,"url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2024\/02\/logo-jpeg.jpg","type":"image\/jpeg"}],"author":"Changhong Chemical","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Changhong Chemical","Est. tempo de leitura":"7 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/#article","isPartOf":{"@id":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/"},"author":{"name":"Changhong Chemical","@id":"https:\/\/changhongchemical.com\/#\/schema\/person\/2a9593ff69d6db8f8ca0567ca3ed6b5d"},"headline":"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing","datePublished":"2026-09-18T07:58:42+00:00","mainEntityOfPage":{"@id":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/"},"wordCount":1485,"publisher":{"@id":"https:\/\/changhongchemical.com\/#organization"},"articleSection":["News"],"inLanguage":"pt-BR"},{"@type":"WebPage","@id":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/","url":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/","name":"Quando os resultados dos seus exames laboratoriais n\u00e3o correspondem ao Certificado de An\u00e1lise (COA) do fornecedor: Um guia pr\u00e1tico para testes de ingredientes bot\u00e2nicos - Changhong Chemical","isPartOf":{"@id":"https:\/\/changhongchemical.com\/#website"},"datePublished":"2026-09-18T07:58:42+00:00","breadcrumb":{"@id":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/changhongchemical.com\/a-practical-guide-to-botanical-ingredient-testing\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/changhongchemical.com\/"},{"@type":"ListItem","position":2,"name":"When Your Lab Results Don\u2019t Match the Supplier\u2019s COA: A Practical Guide to Botanical Ingredient Testing"}]},{"@type":"WebSite","@id":"https:\/\/changhongchemical.com\/#website","url":"https:\/\/changhongchemical.com\/","name":"Qu\u00edmica Longchang","description":"Fabricante de produtos qu\u00edmicos na China \uff06 fornecedor","publisher":{"@id":"https:\/\/changhongchemical.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/changhongchemical.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-BR"},{"@type":"Organization","@id":"https:\/\/changhongchemical.com\/#organization","name":"Qu\u00edmica Longchang","url":"https:\/\/changhongchemical.com\/","logo":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/changhongchemical.com\/#\/schema\/logo\/image\/","url":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2020\/08\/cropped-longchang-logo.png","contentUrl":"https:\/\/changhongchemical.com\/wp-content\/uploads\/2020\/08\/cropped-longchang-logo.png","width":512,"height":512,"caption":"Changhong Chemical"},"image":{"@id":"https:\/\/changhongchemical.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/changhongchemical.com\/#\/schema\/person\/2a9593ff69d6db8f8ca0567ca3ed6b5d","name":"Qu\u00edmica Longchang","image":{"@type":"ImageObject","inLanguage":"pt-BR","@id":"https:\/\/secure.gravatar.com\/avatar\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a2d60a3a1fe3f833b6f3c104e1ab60f8bd057928e36187909c92dc89c162e333?s=96&d=mm&r=g","caption":"Changhong Chemical"},"sameAs":["https:\/\/changhongchemical.com"],"url":"https:\/\/changhongchemical.com\/pt\/author\/infolongchangchemical-com\/"}]}},"_links":{"self":[{"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/posts\/10123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/comments?post=10123"}],"version-history":[{"count":1,"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/posts\/10123\/revisions"}],"predecessor-version":[{"id":10124,"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/posts\/10123\/revisions\/10124"}],"wp:attachment":[{"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/media?parent=10123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/categories?post=10123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/changhongchemical.com\/pt\/wp-json\/wp\/v2\/tags?post=10123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}