by United Science | Feb 4, 2013 | Sample Preparation
A recent presentation by Stephen Lehotay of the USDA explained the use and benefits of the QuEChERS technique. It is a excellent primer and a review of the state of the art in QuEChERS. Both the webinar and the presentation are linked here.
by United Science | Dec 26, 2012 | Sample Preparation
Conor Smith, Ph.D. Introduction: A new modified Schenck SPE QuEChERS method is described below. This method employs a pass-through SPE method and gives good recoveries of 18 GC/MS amenable pesticides while removing the pigment from the spinach extract. Reagents...
by United Science | Dec 10, 2012 | Sample Preparation, Technical Notes
A summary of some of CarbonX for QuEChERS properties and capabilities A .pdf can be downloaded here.
by United Science | Nov 8, 2012 | Sample Preparation, Technical Notes
Analysis of 16 Pesticide Residues in Broccoli Using CarbonX dSPE QuEChERS AOAC Kits Using GC/MS Authors: Conor Smith, Doug Fryer United Science Corp. 15911 Furuby Rd. Center City,MN55012 USA Abstract This application note describes the use of a quick, easy,...
by United Science | Sep 8, 2012 | Sample Preparation, Technical Notes
Ok. So you want to cut to the chase and find out what is the big deal. Well, here it is: For QuEChERS: 1. CarbonX materials give high planar pesticide recovery without having to use toluene. So what? Well you can skip many of the steps required for planar pesticide...
