{"id":28,"date":"2026-07-20T03:57:31","date_gmt":"2026-07-20T03:57:31","guid":{"rendered":"https:\/\/nhdbio.com\/service\/level-determination\/"},"modified":"2026-09-01T19:51:39","modified_gmt":"2026-09-01T19:51:39","slug":"analytical-qc-testing","status":"publish","type":"phoenix_service","link":"https:\/\/nhdbio.com\/fr\/services\/analytical-qc-testing\/","title":{"rendered":"Analyses et contr\u00f4le qualit\u00e9"},"content":{"rendered":"<div class=\"phoenix-case-stats\">\n<div class=\"phoenix-case-stat\"><span class=\"phoenix-case-stat-v\">M\u00e9thode<\/span><span class=\"phoenix-case-stat-l\">Confirm\u00e9 avant acceptation<\/span><\/div>\n<div class=\"phoenix-case-stat\"><span class=\"phoenix-case-stat-v\">Filet<\/span><span class=\"phoenix-case-stat-l\">Teneur en peptides<\/span><\/div>\n<div class=\"phoenix-case-stat\"><span class=\"phoenix-case-stat-v\">\u00b1<\/span><span class=\"phoenix-case-stat-l\">V\u00e9rification du bilan de masse<\/span><\/div>\n<div class=\"phoenix-case-stat\"><span class=\"phoenix-case-stat-v\">Rapport<\/span><span class=\"phoenix-case-stat-l\">Port\u00e9e convenue par projet<\/span><\/div>\n<\/div>\n<p>La masse brute du flacon peut comprendre du peptide, de l'eau, des contre-ions, des sels r\u00e9siduels et d'autres composants. Une m\u00e9thode de teneur adapt\u00e9e et une interpr\u00e9tation du bilan massique doivent \u00eatre convenues pour le mat\u00e9riau avant son utilisation quantitative.<\/p>\n<p>NHD accepte les demandes de services analytiques pour l\u2019examen des m\u00e9thodes et des rapports. L'acceptation de l'\u00e9chantillon, le site de test, la disponibilit\u00e9 de la m\u00e9thode, la quantit\u00e9 et les livrables sont confirm\u00e9s avant le devis.<\/p>\n<h2>Pourquoi le contenu peptidique est important<\/h2>\n<p>La \u00ab teneur nette en peptides \u00bb doit \u00eatre interpr\u00e9t\u00e9e en fonction de la forme chimique, de l'eau, des contre-ions, des r\u00e9sidus et de la m\u00e9thode utilis\u00e9e pour estimer la teneur.<\/p>\n<ul>\n<li><strong>Concentration pr\u00e9cise<\/strong> \u2014 les calculs de pes\u00e9e et de dissolution peuvent \u00eatre biais\u00e9s lorsque la masse non peptidique n'est pas caract\u00e9ris\u00e9e.<\/li>\n<li><strong>Reproductibilit\u00e9<\/strong> \u2014 la normalisation en peptide net rend les r\u00e9sultats comparables entre les lots et les laboratoires.<\/li>\n<li><strong>Essais quantitatifs<\/strong> \u2014 essentiel pour IC50\/EC50, Kd et toute mesure dose-r\u00e9ponse.<\/li>\n<\/ul>\n<h2>M\u00e9thode d'analyse des acides amin\u00e9s<\/h2>\n<p>L\u2019analyse des acides amin\u00e9s est une approche quantitative possible. Son ad\u00e9quation, ses limites d'hydrolyse, ses normes, sa tra\u00e7abilit\u00e9 et son mod\u00e8le de calcul doivent \u00eatre confirm\u00e9s pour l'analyte.<\/p>\n<ul>\n<li><strong>Hydrolyse acide<\/strong> \u2014 d\u00e9composition compl\u00e8te en r\u00e9sidus constitutifs dans des conditions contr\u00f4l\u00e9es.<\/li>\n<li><strong>Quantification<\/strong> \u2014 les rapports molaires des r\u00e9sidus confirment la composition et donnent la teneur nette en peptides.<\/li>\n<li><strong>Rapport<\/strong> \u2014\u00a0% net de peptides, tableau de composition et contenu calcul\u00e9 par flacon.<\/li>\n<\/ul>\n<h2>Normes quantifi\u00e9es et AQUA<\/h2>\n<p>Les projets de quantification absolue n\u00e9cessitent un mat\u00e9riau de r\u00e9f\u00e9rence d\u00e9fini, une attribution de valeur, une incertitude et une tra\u00e7abilit\u00e9. La disponibilit\u00e9 est examin\u00e9e par projet.<\/p>\n<ul>\n<li><strong>Normes de style AQUA<\/strong> \u2014 peptides quantifi\u00e9s par analyse d'acides amin\u00e9s pour une quantification absolue.<\/li>\n<li><strong>Bilan de masse<\/strong> \u2014 contenu v\u00e9rifi\u00e9 par recoupement pour v\u00e9rifier l'exactitude des normes internes.<\/li>\n<\/ul>\n<h2>Sp\u00e9cifications des services<\/h2>\n<table class=\"phoenix-case-specs\">\n<tbody>\n<tr>\n<th>Param\u00e8tre<\/th>\n<th>Sp\u00e9cification<\/th>\n<\/tr>\n<tr>\n<td>M\u00e9thode<\/td>\n<td>S\u00e9lectionn\u00e9 et confirm\u00e9 pour le mat\u00e9riel soumis<\/td>\n<\/tr>\n<tr>\n<td>Rapports<\/td>\n<td>R\u00e9sultats, unit\u00e9s, m\u00e9thode et limites d\u00e9finis \u00e0 l'avance<\/td>\n<\/tr>\n<tr>\n<td>Cas d'utilisation<\/td>\n<td>Pr\u00e9cision de la concentration \u00b7 tests quantitatifs<\/td>\n<\/tr>\n<tr>\n<td>Normes<\/td>\n<td>Exigences de r\u00e9f\u00e9rence et de tra\u00e7abilit\u00e9 revues par projet<\/td>\n<\/tr>\n<tr>\n<td>S'associe avec<\/td>\n<td>Analyse d'identit\u00e9, d'eau, de contre-ions et de r\u00e9sidus le cas \u00e9ch\u00e9ant<\/td>\n<\/tr>\n<tr>\n<td>Livrable<\/td>\n<td>D\u00e9fini dans le p\u00e9rim\u00e8tre analytique accept\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Questions fr\u00e9quentes<\/h2>\n<div class=\"phoenix-case-faq\">\n<div class=\"phoenix-case-faq-item\">\n<h3>Le poids du flacon n'est-il pas suffisant ?<\/h3>\n<p>Non. Le poids brut comprend l\u2019eau, les sels et les contre-ions. Seule la teneur nette en peptides vous indique la quantit\u00e9 r\u00e9elle de peptides dont vous disposez, ce dont d\u00e9pendent vos concentrations.<\/p>\n<\/div>\n<div class=\"phoenix-case-faq-item\">\n<h3>Dans quelle mesure le contenu peut-il varier ?<\/h3>\n<p>Il n\u2019existe pas de gamme s\u00fbre \u00e0 l\u2019\u00e9chelle du catalogue. Le contenu d\u00e9pend de la forme du mat\u00e9riau, de la s\u00e9quence, de la purification, de l'eau, des contre-ions, des r\u00e9sidus et de la m\u00e9thode de mesure.<\/p>\n<\/div>\n<div class=\"phoenix-case-faq-item\">\n<h3>Pouvez-vous quantifier un peptide que j\u2019ai achet\u00e9 ailleurs ?<\/h3>\n<p>L'acceptation des \u00e9chantillons externes, la quantit\u00e9, l'ad\u00e9quation de la m\u00e9thode et la port\u00e9e du rapport doivent \u00eatre examin\u00e9s avant qu'un projet soit accept\u00e9.<\/p>\n<\/div>\n<\/div>\n<h2>Demander une d\u00e9termination du contenu<\/h2>\n<p>Soumettre l\u2019identit\u00e9 du mat\u00e9riau, la quantit\u00e9, la matrice, le calcul pr\u00e9vu et les exigences en mati\u00e8re de reporting pour l\u2019examen de faisabilit\u00e9 analytique. <a href=\"https:\/\/nhdbio.com\/fr\/contact\/\">Contactez notre \u00e9quipe<\/a> pour organiser l'analyse.<\/p>","protected":false},"excerpt":{"rendered":"<p>Demandes de tests analytiques avec m\u00e9thode, \u00e9chantillon, matrice, crit\u00e8res d'acceptation et port\u00e9e du rapport confirm\u00e9es avant le d\u00e9but des travaux.<\/p>","protected":false},"featured_media":0,"menu_order":4,"template":"","meta":[],"phoenix_case_cat":[],"class_list":["post-28","phoenix_service","type-phoenix_service","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Analytical &amp; 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