Field-amplified sample stacking for the detection of chemical warfare agent degradation products in low-conductivity matrices by capillary electrophoresis-mass spectrometry

Metabolism of Vertebrate Amino Sugars with N-Glycolyl Groups

“…To ensure reproducible migration times, the running buffer was replaced after every second run. After injecting a short (ϳ15 nanoliters) H 2 O plug, samples were electrostatically introduced and pre-concentrated at the anode by applying a potential of Ϫ10 kV for 10 s according to a field-amplified sample injection technique described previously (37). Electrophoresis was carried out at a constant voltage of 30 kV (which produced a current of about 90 A), and the capillary was thermostated at 22°C.…”

The Production, Separation and Stability of Pyoluteorin: A Biological Pesticide

“…Thus, stacking could be achieved at the boundary between sample and CE zone. The method has been confirmed on sensitivity improvement of CE analysis for environmental samples (Albert et al, 1997;Palmarsdottir et al, 1997;Liu et al, 2008), and received approval in trace determination of pesticides and other environmental pollutants (Nunez et al, 2002;Carabias-Martinez et al, 2003;Lagarrigue et al, 2008). Herein, we developed a method of CE which combined field-amplified sample stacking to analyze trace amount of Plt.…”

Recent food safety and food quality applications of CE‐MS

“…Even though, some other interesting applications like the analysis of biogenic amines [27,28], alkaloids [29][30][31], antidepressants [32,33], disinfection byproducts [34], products formed during the processing or cooking of food, such as acrylamides [35], speciation analysis [36][37][38], chemical warfare agent degradation products [39], transgenic foods [30,40] and toxic oligopeptides [41] have also been carried out in this field by CE-MS. Table 1 shows these recent examples of the application of CE-MS.…”