Research Notes

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Seven COA Red Flags to Check in Research Material Documentation
Seven documentation red flags that deserve a closer look when reviewing a research-material COA, from missing lot numbers to unverifiable QR codes. Mehr lesen …
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What Does 99% Purity Actually Mean on an Analytical Report?
A 99% purity result is method-specific and is often misunderstood. Learn what chromatographic purity can show — and what it cannot establish on its own. Mehr lesen …
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Supplier COA vs Independent Laboratory Testing: What’s the Difference?
Supplier documentation and independent laboratory reports are not the same evidence class. Learn what each can show and why batch linkage still matters. Mehr lesen …
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How to Verify a Batch or Lot Number in Research Material Documentation
A batch number is useful only when it connects the physical material, supplier records and analytical report. This guide explains how to verify that link. Mehr lesen …
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HPLC vs LC-MS for Research Materials: What Each Test Can — and Cannot — Tell You
HPLC and LC-MS answer different analytical questions. Learn how chromatographic purity differs from mass-based identity and why both results must be read in context. Mehr lesen …
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What a QR Code on a COA Can — and Cannot — Prove
A QR code can be useful when it resolves to an official laboratory record, but the presence of a QR code alone does not prove report authenticity, accreditation or batch... Mehr lesen …
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Why Batch Linkage Matters in Analytical Documentation
A legitimate-looking analytical report is not automatically evidence for the lot currently being supplied. Batch linkage is the step that connects a report to physical inventory. Mehr lesen …
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Purity vs Identity: Why They Are Not the Same
Purity and identity answer different analytical questions. This note explains why a high purity percentage should not be treated as proof of identity, content, sterility or other untested parameters. Mehr lesen …