ACS Peptide Testing Labs is an independent analytical laboratory in Sun City Center, Florida. We test research peptides for purity, identity, contaminants, endotoxin, and moisture, and we do not sell the material we analyze.
ACS Laboratory is now part of Smithers, a global testing and scientific services organization founded in 1925. The Smithers organization brings more than 100 years of scientific expertise and international laboratory resources.
Peptide testing is one of ACS Laboratory's analytical services, not its only area of work. Our peptide testing capabilities cover 103 peptides, with 5–7 business days for eligible routine testing.
We run analytical chemistry on peptide samples submitted by research laboratories, compounding pharmacies, and suppliers who need an outside opinion on what is actually in a vial. Work is performed at one facility rather than brokered out, which keeps sample handling and data review under one quality system.
We do not manufacture, compound, resell, or recommend peptide products, and we do not provide clinical or dosing advice. That separation is the point of a third-party laboratory: the result has to be usable whether it is favorable or not. If you are evaluating labs, our guide on how to choose a peptide testing lab lists the questions worth asking any provider, including us.
Chromatographic purity, related-substance profiling, and assay against a reference standard.
Molecular weight confirmation and sequence identity, including detection of deletion and oxidation impurities.
Heavy metal and elemental contaminant screening at trace concentrations.
Bacterial endotoxin quantification for injectable-route research material.
Residual moisture in lyophilized peptide powder, which drives stability and net peptide content.
Method selection depends on the question being asked. Our comparison of HPLC versus mass spectrometry for peptide analysis explains why purity and identity are separate tests, and peptide purity testing covers what a purity number does and does not tell you.
Our laboratory team can answer method and sample questions before you order. Read about ACS Laboratory's leadership on the Roger Brown author page.
Laboratory accreditation is limited to the current certificate scope. Peptide HPLC and LC-MS coverage has not been confirmed; do not assume a peptide test is accredited.
Analyses are run to validated analytical methodology with documented calibration and reference standards.
Purity by RP-HPLC, identity confirmation by LC-MS, plus contaminant, endotoxin, and moisture panels in-house.
From sample receipt. Complex panels, custom methods and stability studies have separately confirmed timelines.
Every report includes chromatograms, method parameters, and sample chain-of-custody so results can be verified.
More detail on our instrumentation, analysts, and quality system is on the about our peptide testing laboratory page, or read how to verify a peptide COA.
ACS Peptide Testing Labs provides peptide analytical testing from ACS Laboratory, now part of Smithers. Samples are received, prepared and analyzed at the single Sun City Center, Florida facility.
Yes. We do not manufacture, resell, or distribute peptides. Testing revenue comes from analysis only, which is what makes a third-party certificate of analysis meaningful.
Analyses follow validated analytical methodology, with method design informed by USP and ICH guidance for chromatographic purity, identity, and stability work.
5–7 business days for eligible routine testing from sample receipt. Complex panels, custom methods and stability studies have separately confirmed timelines.
Every report includes chromatograms, the analytical method parameters, and sample identifiers. A second laboratory can reproduce the analysis from that information, which is the practical test of whether a COA is trustworthy.
Tell us the compound, the format, and what you need to demonstrate. We will confirm the right panel, pricing, and shipping instructions before you ship anything.