{"id":926740,"date":"2026-10-09T16:54:20","date_gmt":"2026-10-09T16:54:20","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/926740\/"},"modified":"2026-10-09T16:54:20","modified_gmt":"2026-10-09T16:54:20","slug":"quantitative-analysis-challenges-for-glp-1-peptides","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/926740\/","title":{"rendered":"Quantitative Analysis Challenges for GLP-1 Peptides"},"content":{"rendered":"\n<p class=\"\">Having covered qualitative characterization, the panel turns to a different challenge: what changes when the goal shifts to quantifying a main component or impurity rather than simply identifying it. Piotr Alvarez opens by stressing a two-sided requirement\u2014analysts must ensure they are neither inadvertently generating an impurity during sample manipulation, nor inadvertently degrading one away and undercounting it. He distinguishes between analyzing a drug substance, which typically involves a straightforward active pharmaceutical ingredient (API) dilution, and a drug product, which introduces far more variables: injectable formulations, solid forms, and different delivery vehicles all require different approaches, and excipients can meaningfully affect both separation and recovery. Sustained-release formulations, in which the GLP-1 peptide is embedded in polymeric particles, add another layer of complexity to sample preparation and recovery optimization.<\/p>\n","protected":false},"excerpt":{"rendered":"Having covered qualitative characterization, the panel turns to a different challenge: what changes when the goal shifts to&hellip;\n","protected":false},"author":2,"featured_media":926741,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[49,48,66],"class_list":["post-926740","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-ca","tag-canada","tag-science"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/926740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/comments?post=926740"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/926740\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media\/926741"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media?parent=926740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/categories?post=926740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/tags?post=926740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}