InternationalPrague, Czech Republic
Janoshik Analytical
The most widely used independent peptide testing laboratory in the research community. Based in Prague, Czech Republic, Janoshik provides comprehensive peptide analysis including HPLC purity, mass spectrometry identity verification, endotoxin testing, heavy metals, and sterility. Known for QR-coded COAs with online verification via public.janoshik.com.
Testing Capabilities
Purity Testing
| Test Name | Description | Price Range | Turnaround |
|---|---|---|---|
| HPLC Purity | High-performance liquid chromatography purity analysis for peptide samples. | - | - |
Identity Testing
| Test Name | Description | Price Range | Turnaround |
|---|---|---|---|
| LC-MS/MS Identity | Liquid chromatography-tandem mass spectrometry for peptide identity verification. | - | - |
Endotoxin Testing
| Test Name | Description | Price Range | Turnaround |
|---|---|---|---|
| Endotoxin (LAL) | Limulus amebocyte lysate endotoxin testing for injectable peptide samples. | - | - |
Heavy Metals
| Test Name | Description | Price Range | Turnaround |
|---|---|---|---|
| Heavy Metals (ICP-MS) | Inductively coupled plasma mass spectrometry for heavy metal contamination analysis. | - | - |
Sterility Testing
| Test Name | Description | Price Range | Turnaround |
|---|---|---|---|
| Sterility (TAMC+TYMC) | Total aerobic microbial count and total yeast/mold count sterility testing. | - | - |
Residual Solvents
| Test Name | Description | Price Range | Turnaround |
|---|---|---|---|
| Residual Solvents (GC-MS) | Gas chromatography-mass spectrometry for residual solvent detection. | - | - |
Vendors Using This Lab
Practical Information
Accepted Sample Types
Lyophilized peptideRaw powderLiquid solution
Turnaround Time
Standard: 1-8 days
Rush service available
Pricing Model
Per-test and package pricing with expedited surcharge (+100%)
Price Range
~$828 for GLP-1 full panel
Pros & Cons
Pros
- Gold standard for community peptide testing
- QR-verified COAs
- Comprehensive test menu
- Accepts worldwide samples
- Public test database
Cons
- Not ISO 17025 accredited
- International shipping required
- Not suitable for regulatory submissions
- Premium pricing for full packages
Contact & Info
- Region
- International
- Location
- Prague, Czech Republic
- info@janoshik.com
- Website
- janoshik.com
- Last Verified
- 2026-02-09