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Articles & testing guidance

Practical guidance on food and dietary-supplement testing — methods, standards, and what your results actually mean.

Heavy Metals in Supplements: Prop 65, USP <232> & ICP-MS Testing Heavy Metals

Heavy Metals in Supplements: Prop 65, USP <232> & ICP-MS Testing

Lead, arsenic, cadmium and mercury limits explained — ICH Q3D / USP <2232> permitted daily exposures, California Prop 65 safe-harbor levels, and how ICP-MS with arsenic speciation measures them.

August 5, 2026 7 min read
Rapid Microbiology: How PCR and Automated MPN Cut Time-to-Result Microbiology

Rapid Microbiology: How PCR and Automated MPN Cut Time-to-Result

Why traditional culture takes 5–7+ days and how automated MPN enumeration (TEMPO®) and real-time PCR (GENE-UP®) return the full microbiology panel in 3 days — without cutting corners.

July 15, 2026 6 min read
How Dietary Supplement Testing Verifies Potency, Identity & Purity Dietary Supplements

How Dietary Supplement Testing Verifies Potency, Identity & Purity

How laboratories verify dietary supplements — botanical identity, label-claim potency by HPLC/LC-MS, and purity screening — and why adulteration makes independent testing essential.

June 12, 2026 7 min read