Waters Atmospheric Pressure Gas Chromatography (APGC) adds GC capability to today’s advanced MS technologies. This provides GC users with: High performance, ease of use allowing quick reaction to meet demands and increase throughput. Access to ultra-trace quantification. Comprehensive qualitative MS & MS/MS.
Oct 13, 2017 · Then, the condenser was switched to forced water circulation, which was cooled to 2–3 °C by a refrigeration system. After passing condensate water continuously through the condenser, a 3 g mixture of jujube extract and 20 mL of water were added into the three-necked, round-bottom flask. The water vapor exit was submerged in the mixture.
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Apr 01, 1984 · The levels of styrene monomer in foods packaged in polystyrene containers were determined by a headspace gas chromatography (g.c.) method and two reversed phase high‐performance liquid chromatography (h.p.l.c.) methods. A total of 146 samples were analysed from Victoria and New South Wales which included yoghurt, cream, cheese, dessert, ice cream, egg white, onion dip and margarine. The
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An Introduction to Headspace Sampling in Gas Chromatography Introduction This document is intended to provide the newcomer to headspace sampling with a concise summary of the theory and principles of this exciting technique. Enough information is included here for the user to understand the basic concepts and relationships in HS sampling to apply
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Gas Chromatography. Gas Chromatography (GC) is a technique for separating and analyzing compounds that can be vaporized without decomposition, and is widely used in environmental testing and forensic science, as well as for Pharma R&D and QC applications.
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Headspace Vials and Caps for Gas Chromatography Headspace Vials Caps for Headspace Gas Chromatography Applications. Headspace gas chromatography requires headspace vials and caps because they can withstand the pressure from the gas. Chrom Tech has a wide selection of high-quality crimp and screw
Headspace gas chromatography (HS-GC) and reverse phase high-performance liquid chromatography (RP-HPLC) are the two main methods used for measurement of acetaldehyde. The HPLC method entails labeling with a derivatization reagent for stabilization and selective determination of acetaldehyde.
