Application Notes: GC

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

The internal standard module of a CDS thermal desorber is used to automate the process of preparing calibration standards onto pre-conditioned thermal desorption tubes

This application note demonstrates the quantitative recollection of split sample to a clean sample saver tube for a group of VOCs in TD–GC–MS.

This application note follows the Pyroprobe application decision making tree with EGA and pyrolysis to study biodegradable plastics by GC-MS.

In this application note, we will walk you through the steps required to change your carrier gas from helium to hydrogen.

Quantitative recollection of split sample to a second sample saver tube is demonstrated for different split ratios on the CDS 7550S automated thermal desorber.

Application guide to PFAS analysis in environmental and food samples, from sample preparation to LC–MS/MS analysis, featuring both validated and exploratory methods.

In a commercial laboratory setting, Strata-X-AW and Gemini 3 µm C18 show excellent precision and recovery in EPA Method 533 for the analysis of PFAS in drinking water.

Strata PFAS (WAX and GCB combined in a single SPE tube) compliant with DOD QSM 5.1, but more accurate, precise, and economical than dual tube or dispersed GCB solutions.

A QuEChERs + SPE sample preparation technique coupled with LC–MS/MS is shown to provide sub-ppb analysis of PFAS in dairy and fish samples.

Validation of a water and wastewater method for the California PFAS panel using SPE (WAX/GCB) preparation and LC–MS/MS analysis with a variable pH LC mobile phase

Phenomenex announces a new graphitized carbob black (GCB) SPE tube for DOD QSM 5.3 compliant PFAS analysis.

A municipal wastewater laboratory demonstrates the use of QuEChERs sample preparation techniques to analyze PFAS in sediments at sub ng/g levels.

A wide variety of LC column chemistries were evaluated to demonstrate new chromatographic approaches to complex PFAS analyte lists.

Strata-SDB-L and Luna Omega 1.6 µm PS C18 demonstrate excellent precision and recovery in EPA Method 537.1 for the analysis of PFAS in drinking water.

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

An online thermal desorber has been developed for the automated, in situ, determination of VOCs. The system does not need liquid nitrogen or CO2.

This e-book demonstrates the use of Purge and Trap coupled with GC–MS to meet the challenges of VOC analysis for the most common EPA regulations and methods.

Learn how to convert your GC carrier gas from helium to hydrogen with this step-by-step guide to avoid the increasing cost of helium.