Sigma-Aldrich
Analytical and Chromatography Grade Chemicals
Support for research and routine analysis with reference materials and specialty chemicals.
Chemicals & Culture Media
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Merck
Analytical Reagents and Reference Standards
Reagent chemicals in purity grades compliant with pharmacopoeia and international standards.
| Analytical reagents | |
| Chromatography solvents | |
| Reference standards | |
| Culture media and test kits |
Merck chemicals deliver reliable results in analytical work with purity grades supplied together with a certificate of analysis; culture media and test kits also cover the microbiology side.
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