{"id":140,"date":"2026-08-05T09:00:00","date_gmt":"2026-08-05T09:00:00","guid":{"rendered":"https:\/\/peptidefactorylabs.com\/hplc-ms\/"},"modified":"2026-08-05T09:00:00","modified_gmt":"2026-08-05T09:00:00","slug":"hplc-ms","status":"publish","type":"post","link":"https:\/\/peptidefactorylabs.com\/de\/hplc-ms\/","title":{"rendered":"HPLC vs. Massenspektrometrie: Wie Forschungspepptide verifiziert werden"},"content":{"rendered":"

HPLC and mass spectrometry are often listed together on peptide documentation, but they answer different analytical questions. Separating those roles makes a Certificate of Analysis much easier to assess.<\/p>\n

What HPLC Tells You<\/h2>\n

High-Performance Liquid Chromatography separates components in a sample as they move through a chromatographic column. The resulting peaks are used to estimate how much of the detected material corresponds to the dominant component. In practical terms, HPLC is primarily used to assess purity.<\/p>\n

What Mass Spectrometry Tells You<\/h2>\n

Mass spectrometry measures mass-to-charge behavior and allows the observed molecular mass to be compared with the theoretical value expected for the target sequence. It is therefore primarily an identity tool.<\/p>\n

Why the Two Methods Work Together<\/h2>\n
\n
HPLC<\/strong>Primary question<\/span><\/p>\n

How pure is the sample?<\/h3>\n<\/article>\n
MS<\/strong>Primary question<\/span><\/p>\n

Is this the expected molecule?<\/h3>\n<\/article>\n<\/div>\n

A strong chromatographic result alone cannot establish molecular identity, while a correct mass result does not by itself quantify overall purity. Using both methods provides a more complete analytical picture.<\/p>\n

Reading Results Side by Side<\/h2>\n

On a combined report, review the stated HPLC purity together with the chromatogram, then compare the observed mass from MS with the theoretical molecular weight in the product specification. Both results should be consistent with the grade and identity agreed for the project.<\/p>\n

Practical Takeaways<\/h2>\n
    \n
  • Treat purity and identity as separate questions.<\/li>\n
  • Look for documentation that clearly states the analytical method used.<\/li>\n
  • Check that observed mass aligns with the expected molecular weight.<\/li>\n
  • Where required by your workflow, ask how external or third-party verification is handled.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

    HPLC und Massenspektrometrie dienen der Beantwortung unterschiedlicher analytischer Fragestellungen. Wenn man diesen Unterschied kennt, l\u00e4sst sich ein Analysezertifikat leichter bewerten.<\/p>","protected":false},"author":0,"featured_media":141,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-140","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-quality-testing"],"yoast_head":"\nHPLC vs. Mass Spectrometry: How Research Peptides Are Verified - PeptideFactoryLabs<\/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:\/\/peptidefactorylabs.com\/de\/hplc-ms\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HPLC vs. Mass Spectrometry: How Research Peptides Are Verified\" \/>\n<meta property=\"og:description\" content=\"HPLC and mass spectrometry answer different analytical questions. 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