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A static headspace gas chromatographic (sHS-GC) method for quantitative determination of residual organic solvents in eprosartan mesylate drug substance is developed. SE-30 capillary column (30 m x 0.25 mm i.d., 0.5 μm film thickness) and FID detector are adopted. Response surface methodology (RSM) has been successfully applied to obtain the optimum headspace conditions: the equilibrium

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The volatile and semi‐volatile compounds of Chinese rice wines were extracted by headspace solid phase microextraction (HS‐SPME) and analyzed by gas chromatography‐mass spectrum (GC‐MS). The original Chinese rice wine samples were diluted with deionized water to a final concentration of 6% (v/v) ethanol and then extracted by HS‐SPME.

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Abstract: Headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography mass spectrometry (GC-MS) was applied for the determination of the characteristic volatile profiles of Chinese vinegars. Multivariate statistical techniques, such as

The volatile organic compounds (VOCs) in four Chinese freshwater fishes (i.e., Hypophthalmichthys molitrix (H), Aristichthys nobilis (A), Lateolabrax japonicus (L), Parabramis pekinensis (P)) were separated using gas chromatography-ion mobility spectrometry (GC-IMS) and ultrafast gas chromatography electronic-nose (uf-GC E-nose). ). Principal component analysis (PCA) was applied to distinguish

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Background A simple and sensitive gas chromatographic method was developed and validated for the simultaneous determination of methanol, ethanol, acetone, isopropyl alcohol, dichloromethane, N-hexane, ethyl acetate, tetrahydrofuran, and N,N-diisopropyl ethyl amine in Paclitaxel. A chromatographic separation was done on DB-624 column, 30 m length × 0.53 mm ID, and film thickness 3 μm, using a

Headspace Sampler. The Aijiren Headspace Sampler is based on the architecture of the GC and Automatic Liquid Sampler line of products. Automatic Leak Check ensures each vial is leak-free prior to analysis, with no loss of precision or sensitivity. Hydrogen can be safely used as an alternative carrier gas.

The determination of 1,4-dioxane in cosmetic products by gas chromatography with tandem mass spectrometry J Chromatogr A . 2019 Dec 6;1607:460400. doi: 10.1016/j.chroma.2019.460400.