“Research grade” is a marketing term, not a safety standard. We screened 40 samples for heavy metals.
Across 40 samples
1 in 6 over limit
Lead and arsenic were the most common offenders, usually from low-grade reconstitution water.
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Lead, arsenic & the limits of “research grade”
ICP-MS screening across 40 samples, the contamination patterns we keep seeing.
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