NEW HANOVER COUNTY –– Along with Bigg B from Coast radio station, New Hanover County is hosting a "Vax and Snax Block Party" this Saturday to encourage…
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Mar 09 2021 Read 419 Times
ChroZen ASTM D1945 Player with column switching valve system effectively analyses natural gases by controlling the valve switching time with accuracy and precision and verifies its reliability by effectively determining each component of natural gases according to ASTM D1945.
Natural gases consist of methane (major component), other hydrocarbons and permanent gases like hydrogen, oxygen, nitrogen as well as carbon dioxide. They are used as major energy sources in numerous industries and it is very critical to accurately determine them because their value differs depending on chemical composition and the concentration of each component.
Among various analytical methods for natural gases, ASTM D1945 utilizes Gas Chromatograph (GC) configuring 5 columns and 3 detectors with 4 valves, which enables the analysis of complex natural gases in a single injection.
Mar 02 2021 Read 924 Times
ChroZen USP 467 Player is the optimised system for determination of residual solvents by fully complying with USP 467 and verifies the validity of analysis results for each analysis method.
For pharmacopeial purposes, residual solvents in pharmaceuticals are defined as organic volatile chemicals that are used or produced in the manufacture of drug substances or excipients, or in the preparation of drug products. Because these solvents can be harmful to human body if they remain in the final products, it is required to regulate these compounds not to exceed the specific limits defined in certain regulations.
United Stated Pharmacopeia (USP) classifies the residual solvents into Class Ⅰ, Class Ⅱ and Class Ⅲ depending on their risk to human health and USP 467 test method describes all the requirements for the analysis of residual solvents.