Application Notes: GC

Crude oils consist of hundreds of hydrocarbon compounds in which the boiling point distribution of these crude oils is an important parameter in the petroleum industry.

The UOP555 describes the determination of individual and total trace hydrocarbon impurities in olefin-free, high-purity benzene. SCION Instruments offers solution by gas chromatography (GC)

This work introduces the analysis of iso-α-acids, α-acids, and humulinones in beer in reference to EBC 9.47. IBU was also measured with a UV–vis spectrophotometer.

In this app note, xanthohumol, isoxanthohumol, humulinones, iso-α-acids, α-acids, and β-acids are simultaneously analyzed by high performance liquid chromatography.

This article introduces the high-speed analysis of α-acids and β-acids in hops in reference to EBC 7.7 and ASBC Hops-14.

Volatile sulfur compounds were analyzed in commercially available beer samples using GC with headspace sampler and sulfur chemiluminescence detection.

Shimadzu provides total solutions for beer analysis from farm to stein and service support to keep up with changing market demands.

This application describes the analysis of organic acids in beer by ion-exclusion chromatography and postcolumn pH-buffering conductivity detection.

Residual monomers and solvents can present health risks or impact performance of final product. Learn about this method that can help you meet the most stringent purity requirements.

This study shows a method that provides ideal separation efficiency and quantitative repeatability for ASTM Method D5501-20 analysis.

Learn about a GC-FID method that identifies propylene glycol and defines a limit test for ethylene glycol and diethylene glycol.

Learn about residual impurities in cetyl alcohol method, according to the USP monograph, that offers enhanced compound resolution and highly repeatable injections.

This study focuses on PEG samples having a molecular weight of less than 450 where USP specifies a GC–FID using a packed column as the analytical method of choice.

Fast method that provides excellent resolution and highly repeatable separations helping to improve data quality and increase laboratory productivity.

Analysis of volatile petrochemical hydrocarbons in the environment by fully automated workflow (flow-modulated headspace–GC×GC–FID) for efficient sample quantitation

Using GC–TOF-MS for comprehensive profiling of seized drug samples, for confident identification of controlled substances, as well as adulterants and cutting agents

This study describes the development of an analytical platform based upon TD–GC×GC–TOF-MS and shows its application to the collection and analysis of breath samples.

Cost-saving benefits are achieved through an automated workflow for mineral oil analysis in water by in-vial liquid-liquid extraction, clean-up, and on-line GC analysis

This application note describes two approaches for achieving a robust, multiresidue pesticide analysis in 10 min by GC–MS/MS for over 200 pesticides in spinach.

Learn best practices to enhance analytical performance for the analysis of > 200 pesticides in challenging matrices using Agilent triple quadrupole GC–MS instruments.

This application demonstrates low detection limit capabilities of the Agilent 7000E triple quadrupole GC–MS, meeting EPA 8270 requirements when using H2 carrier gas.

Methods migration from updating analytical equipment can be a time consuming task. This paper shows many examples of method compatibility and analytical equivalency.

 In this application note we demonstrate the excellent performance of Sapiens-624MS columns for the analysis of e-liquids based on ISO 20714.

This application note describes two methods for isopropyl alcohol impurities detection: USP recommended 42-min analysis, and a speed-optimized method in less than 6 min.

A novel LC approach to manipulate the chromatography of closely related PFAS analytes to separate co-elutes and avoid matrix interferences.

Investigating the effect of hydrogen and helium carrier gas across a range of column flow rates with different draw-out lenses for essential oil and volatile analysis

In this application note we demonstrate the excellent performance of Sapiens-624MS columns for the analysis of e-liquids based on ISO 20714