Selection of Capillary GC Columns for Residual Solvent Analysis
The use of solid-phase microextraction (SPME)! An excellent analytical method that replaces traditional headspace analysis.
This document presents the results of residual solvent analysis using both the conventional direct injection method and the economical solvent-free high-speed SPME method. SPME is a technique that eliminates the costs and hazards associated with the use of organic solvents, allowing for the high-precision extraction of analytes over a wide concentration range under consistent sampling conditions. We compare three columns equivalent to those described in both EP and USP for the analysis of 60 out of 61 solvents (those detectable by GC/FID), and provide descriptions of these columns. We encourage you to read it. [Included Items (Excerpt)] ■ Column names from USP and EP and their equivalents from Supelco ■ Interactions between the stationary phase and the analyte ■ Interactions between the stationary phase and residual solvents ■ Retention times and elution order of Class I residual solvents on the EquityTM-5, SUPELCOWAXTM 10, and OVI-G43 columns ■ Retention times and elution order of Class II residual solvents on the EquityTM-5, SUPELCOWAXTM 10, and OVI-G43 columns *For more details, please refer to the PDF document or feel free to contact us.
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【Other Listing Items (Excerpt)】 ■Retention times and elution order of Class III residual solvents on EquityTM-5, SUPELCOWAXTM 10, and OVI-G43 columns ■Class I solvents for EquityTM-5, SUPELCOWAXTM 10, and OVI-G43 ■Class II solvents for EquityTM-5, SUPELCOWAXTM 10, and OVI-G43 columns ■Class III solvents for EquityTM-5, SUPELCOWAXTM 10, and OVI-G43 ■Solid Phase Microextraction *For more details, please refer to the PDF document or feel free to contact us.
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From research and development of pharmaceuticals to manufacturing and diagnostics, Merck is working to solve various challenges in life sciences in collaboration with the global science community. Merck's products include over 300,000 items, ranging from laboratory pure and ultra-pure water systems to gene editing tools for drug manufacturing, antibodies, cell lines, and end-to-end systems. To realize promising research more quickly and safely, we closely collaborate with customers in academia, the biotechnology industry, and the pharmaceutical industry. Please feel free to contact us for inquiries about our products or if you are interested in raw material supply. Here is the Merck ultra-pure and pure water systems webpage → https://www.merckmillipore.com/LW Here is the Merck life science reagents, raw materials, and analysis webpage → https://www.sigmaaldrich.com/JP/ja