Application Notes: Food and Beverage
Macherey-Nagel - Determination of Triphenylmethane Dyes from Aquaculture Samples
September 1st 2019This application note describes the determination of the triphenylmethane dyes Malachite Green and Crystal Violet and their metabolites from the aquaculture samples brown trout, shrimp, and tuna using dispersive SPE (dSPE) with CHROMABOND QuEChERS mixes for sample clean-up.
The Determination of Pesticides in Coffee with QuEChERS Extraction and Silica Gel SPE Cleanup
September 1st 2019This application note details an optimized method for the extraction and cleanup of pesticide residues from coffee using a QuEChERS extraction procedure followed by a silica gel SPE cleanup.
Analysis of Active Cannabis Compounds in Edible Food Products: Gummy Bears and Brownies
July 1st 2019Potency testing in marijuana-infused edibles is a problematic task due to the complexity of the matrices. The concentration of active ingredients in edibles can range from a few ppm to 3.5% (1). In this application, active cannabinoid compounds were extracted from gummy bears (and also brownies, results not shown), followed by HPLC analysis.