App Notes

Highly Sensitive Determination of Contaminants in Surface Water in the Context of the EU Water Framework Directive using Stir Bar Sorptive Extraction (SBSE) and GC-MS/MS

09/17/2018 | Contributed by Gerstel

In the work presented here, highly sensitive determination of around 100 contaminants in surface water in the concentration range from low doubledigit to low triple-digit pg/L was performed.

UHP-SEC Analysis of Biosimilars Using Size Exclusion Chromatography

09/17/2018 | Contributed by Tosoh

The amounts of high and low molecular weight impurities are critical quality attributes for a therapeutic protein.

Analysis of Aroma Compounds in Edible Oils by Direct Thermal Desorption GC/MS using Slitted Microvials

09/13/2018 | Contributed by Gerstel

This application note describes the direct thermal desorption of desirable and undesirable aroma compounds from edible oils.

Analysis of Catecholamines in Urine and Plasma

09/11/2018 | Contributed by Antec Scientific

In Part I of this application note the analysis of chatecolamines in urine is described, and in Part II the analysis in plasma.

The Do’s and Don’ts of Working with Purified Water

09/10/2018

Water is probably the most commonly used reagent in every laboratory.

Separation of cannabinoids

09/04/2018 | Contributed by Kromasil

The industry of cannabis based products needs reliable and reproducible analytical methods, including for patient safety and labelling ingredient consistency.

A Single Cannabis LC/MS/MS Method to Meet California Pesticide and Mycotoxin Residues Regulatory Requirements

08/28/2018 | Contributed by Perkin Elmer

This application note is no longer available

Fluorodeoxyglucose Radiotracer Analysis

08/28/2018

In this application note typical results obtained with the ALEXYS analyzer are reported demonstrating its suitability for the analysis of FDG in compliance with EP and USP methods.