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Home / Field Notes

Field Notes

Method science, contamination case studies, and what the data actually says about peptides and research compounds.

Heavy Metals

Lead, arsenic & the limits of “research grade”

ICP-MS screening across 40 samples, the contamination patterns we keep seeing.

June 19, 20261 min read
Heavy Metals
Heavy Metals

Lead, arsenic & the limits of “research grade”

ICP-MS screening across 40 samples, the contamination patterns we keep seeing.

Jun 191 min
Harm Reduction
Harm Reduction

Reading a Certificate of Analysis like a chemist

Every number on a COA, what it means, and the three you should never ignore.

Jun 191 min
Case Studies
Case Studies

Three “semaglutide” vials, three different molecules

Blind-testing a grey-market batch, the results weren't what the label claimed.

Jun 191 min
Method Science
Method Science

Why HPLC alone can’t catch a dimer

Purity is not potency. A real HGH batch where the chromatogram looked clean but the mass-spec told a…

Jun 191 min

Categories

Case Studies 1Harm Reduction 1Heavy Metals 2Method Science 1Uncategorized 0

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Recent

Lead, arsenic & the limits of “research grade”
Jun 19
Lead, arsenic & the limits of “research grade”
Jun 19
Reading a Certificate of Analysis like a chemist
Jun 19
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