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Sigma-Aldrich offers Analytical Standards for chromatography (HPLC, GPC, GC), electrophoresis, fluorescence, microscopy, spectroscopy, turbidity, titration and physical properties covering areas of trace and residue analysis, petrochemical, environmental, pharmaceutical, food and beverage, certified reference materials, GMO standards, calibration, preservatives and a complete custom standards and packaging service. Our Standards Search Engine makes it easy to find the right analytical standard. |
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