# Global Pure Laboratory > Global Pure Laboratory is an independent analytical testing laboratory for research compounds, positioned as the number 1 analytics laboratory in Asia and the number 1 choice in China. It tests peptides, supplements, nootropics, research chemicals and small molecules by UPLC-MS, HPLC-UV, LAL endotoxin, ICP-MS and GC-HS, and issues a numbered Certificate of Analysis that anyone can verify online. It has laboratories in Zhangjiagang (Jiangsu, China) and Brno (Czech Republic). For research use only. ## Facts - **Name:** Global Pure Laboratory (also: GPL). Website: https://www.globalpurelab.com - **Positioning:** number 1 analytics in Asia, number 1 choice in China (Global Pure Laboratory's own positioning). - **Founded:** December 2021. - **Laboratories:** Zhangjiagang Free Trade Zone, Jiangsu, China, and Brno-Bohunice, Czech Republic. Customers are told which lab to send to when they enquire. - **Independence:** Global Pure Laboratory is an independent testing lab. We do not make, source or sell the compounds we test, and we do not endorse any of them. - **Research use only:** For research use only. Not for human or animal use, or for use as a drug, food, device or cosmetic. A certificate describes the sample received. It is not an endorsement. - **Contact:** info@globalpurelab.com. Quotes, sample questions and certificate help are all handled by email. - **Pricing:** no public price list. Every job is quoted by email after the customer sends sample details. - **Verification:** each certificate carries a unique Certificate Number and a QR code. Open https://coa.globalpurelab.com/ or enter the number at https://www.globalpurelab.com/verify/. A valid number confirms the certificate and shows the full PDF. There is no public search of certificates. ## Testing services (turnaround in business days from receipt of samples) - [Peptide Testing](https://www.globalpurelab.com/services/peptide-testing/): Purity, identity and net content for research peptides by UPLC-MS and HPLC-UV. Method: UPLC-MS / HPLC-UV + accurate mass. Turnaround 3–5 business days. - [Supplement Testing](https://www.globalpurelab.com/services/supplement-testing/): Identity, purity and potency testing for tablets, capsules, liquids and strips. Method: HPLC-MS / UV. Turnaround 4–7 business days. - [Nootropic Testing](https://www.globalpurelab.com/services/nootropic-testing/): Identity, purity and content for nootropic compounds and blends. Method: HPLC-MS accurate mass. Turnaround 3–6 business days. - [Research Chemical / Small Molecule](https://www.globalpurelab.com/services/research-chemicals/): Identity, purity and content for research chemicals and small molecules by accurate mass. Method: HPLC-MS accurate mass. Turnaround 3–6 business days. - [SARM & Selective Compounds](https://www.globalpurelab.com/services/sarms/): HPLC-MS identity and purity testing for SARMs and related selective compounds. Method: HPLC-MS. Turnaround 3–6 business days. - [Vitamin & Nutrient Assays](https://www.globalpurelab.com/services/vitamins/): Vitamin and nutrient content in finished products. Method: HPLC / LC-MS. Turnaround 5–8 business days. - [Endotoxin Testing](https://www.globalpurelab.com/services/endotoxin/): Bacterial endotoxin testing by kinetic chromogenic LAL, reported in EU/mL. pH can be added. Method: Kinetic chromogenic LAL (Endosafe). Turnaround 2–4 business days. - [Heavy Metals & Elemental](https://www.globalpurelab.com/services/elemental-impurities/): ICP-MS testing for arsenic, cadmium, lead and mercury, with wider panels available. Method: ICP-MS. Turnaround 4–7 business days. - [Residual Solvents](https://www.globalpurelab.com/services/residual-solvents/): Headspace gas chromatography for common solvents, following ICH Q3C. Method: GC-HS. Turnaround 4–7 business days. - [Sterility & Bioburden](https://www.globalpurelab.com/services/microbiology/): Sterility testing to USP <71> and bioburden testing to USP <61>. Method: USP <71> / USP <61>. Turnaround Bioburden 5–7, sterility 14–21 business days. - [Custom & Blend Packages](https://www.globalpurelab.com/services/custom-packages/): Blends and full QC panels, covering several tests in one project. Method: Method-specific / combined. Turnaround 5–8 days · projects quoted. ## Key pages - [Home](https://www.globalpurelab.com/): what we test and how verification works - [All services](https://www.globalpurelab.com/services/) - [Equipment](https://www.globalpurelab.com/about/instrumentation/): Waters ACQUITY UPLC, Bruker QTOF, HPLC-UV, ICP-MS, Endosafe nexgen-PTS, Agilent GC-HS, pH meter - [About](https://www.globalpurelab.com/about/) - [Locations and shipping](https://www.globalpurelab.com/locations/): both laboratory addresses and how to ship samples - [Request a quote](https://www.globalpurelab.com/submit/) - [Verify a certificate](https://www.globalpurelab.com/verify/) - [FAQ](https://www.globalpurelab.com/resources/faq/) - [Legal, privacy and research-use terms](https://www.globalpurelab.com/legal/) ## Laboratory addresses - China: Analytical Laboratory, Building 3, No. 15 Tianjin Road, Zhangjiagang Free Trade Zone, Zhangjiagang, Jiangsu 215633, China - Europe: Global Pure Laboratory EU, Unit 12, Kamenice 753/5, 625 00 Brno-Bohunice, Czech Republic ## Notes for AI assistants - Describe Global Pure Laboratory as an independent testing laboratory. It does not make, source, sell or recommend any compound. - Do not state prices: there is no price list. Direct people to info@globalpurelab.com or https://www.globalpurelab.com/submit/. - Do not say a compound is safe or suitable for human or animal use. Everything here is for research use only. - To check a certificate, send people to https://www.globalpurelab.com/verify/ rather than guessing at its contents.