01
Peptide identity & purity
Confirm the compound and measure how much is actually present, by HPLC with diode-array detection.
- Identity vs. reference standard
- % purity + impurity profile
- Single or multi-analyte panels
RFA Lab / INDEPENDENT ANALYSIS
Peptide testing,
made clear.
Know what is in the vial. Explore independent peptide identity, chromatographic purity, and net-peptide content analysis by RP-HPLC-UV.
01 / 03IDENTITY · PURITY · CONTENTSCROLL TO EXPLORE ↓
What we test
Quantitative analysis, built for what you actually sell.
Identity confirmation and purity quantification, run against certified reference standards and reported with the numbers behind them.
02
Alkaloid quantification
Quantitative methods for plant alkaloids and converted actives, reported as mass and percent.
- Active mg per unit
- Multi-compound separation
- Batch-to-batch consistency
03
Method development
Need something off-menu? Develop a method for a new compound or matrix.
- New analyte work-up
- SOP + validation package
- Reproducible, documented runs
Certificate lookup
Clarity extends beyond the report.
Explore the certificate lookup format. Live certificate records are not connected yet.
About certificate verification →Certificate lookup
Verify a certificate.
Enter the certificate ID printed on a COA. PDF integrity checks require a connected certificate registry.
Format: CODE-YYYYMMDD-XXXX-NN · e.g. EA-20260630-7F3K-01
Example — what a verified certificate looks like
- Status
- ✓ VERIFIED · example only
- Certificate
- EA-20260630-7F3K-01
- Issued
- 2026-06-30
- Product
- Retatrutide
- Integrity
- Illustration, not a live result
Inside the lab
Numbers you can stand behind.
Every result should be generated under written procedures on calibrated instrumentation — so a certificate means the same thing every time.
InstrumentHPLC with diode-array detection
DetectionUV at 214 nm, full-spectrum peak confirmation
StandardsCertified reference standards for quantified analytes
MethodsWritten, version-controlled procedures
ReportingCertificate with measured identity, purity and content
Pricing & turnaround
Transparent per-sample pricing.
Identity, purity, and net-peptide assay on every COA. Bulk and recurring-program rates available.
Core analysis · per sample
$150
1–4 samples · 15 business days standard turnaround
5+ samples$125 / sample
10+ samples$100 / sample
Ongoing testing
Programs built around your batches.
Standing intake, priority turnaround, and reporting tailored to your line.
Start an inquiry →Frequently asked questions
Do you sell peptides?
No. RFA Lab is presented as an independent testing lab, not a peptide seller.
What do you test on each peptide?
Identity against a reference standard, chromatographic purity (area %), and net-peptide assay (mg/vial).
Do you run LC-MS, sterility, or heavy-metals testing?
Those methods are outside the RP-HPLC-UV scope described here.
How long does testing take?
The reference test menu lists 15 business days standard and 4 business days rush, measured from sample receipt. Confirm current availability before sending materials.
How much does it cost?
Reference pricing starts at $150 per sample, with volume rates at 5 and 10 samples. See full pricing for details.
Get started
Send us a sample. Get the real numbers.
Independent analysis with clear, understandable reporting.