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Article: Why HPLC methods differ between labs

Why HPLC methods differ between labs

Different labs use different:

  • Columns
  • Solvents
  • Gradients
  • Detectors

This means retention times can vary slightly. What matters is method transparency, not identical numbers.

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How to detect reused COAs online

Warning signs of a reused COA include identical chromatograms across batches, missing test dates, or no lot numbers.

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How QR codes improve traceability in lab materials

QR codes allow instant linking between a vial and its analytical record, reducing documentation errors.

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