Application Notes: GC

7 Steps to Changing Carrier Gas

September 15, 2021

Sponsored Content

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

CDS 7550S Thermal Desorption Sample Recollection

August 24, 2021

Sponsored Content

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

Perfluoroalkyl Substances (PFAS) Testing Guide

August 19, 2021

Sponsored Content

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

EPA Method 533: PFAS in Drinking Water

August 19, 2021

Sponsored Content

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.

Fast and Economical PFAS Extraction Using Strata PFAS

August 19, 2021

Sponsored Content

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.

PFAS in Food using QuEChERS, SPE, and LC–MS/MS

August 19, 2021

Sponsored Content

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.

California PFAS Panel Analysis in Drinking and Wastewater

August 19, 2021

Sponsored Content

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

Strata® GCB for PFAS Extraction and Clean-Up

August 19, 2021

Sponsored Content

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

Determination of PFAS in Marine and River Sediments

August 19, 2021

Sponsored Content

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

LC Column Chemistries for Full Coverage of PFAS Analyte Ranges

August 19, 2021

Sponsored Content

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