2015
DOI: 10.1021/acs.analchem.5b02372
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Detection, Identification, and Occurrence of Thiotetronic Acids in Drinking Water from Underground Sources by Electrospray Ionization-High Field Asymmetric Waveform Ion Mobility Spectrometry-Quadrupole Time-of-Flight-Mass Spectrometry

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Cited by 4 publications
(3 citation statements)
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“…For labile 11-α GTX and CTX epimers, relative intensity increases rapidly with % modifier up to about 0.8%. This can be attributed to the protective effect of the clustered modifier to field-induced fragmentation in the DMS [28][29][30][31], similar to that reported previously for the use of CO 2 as a gas additive in FAIMS [32,33]. For more stable 11-β epimers (Figure 2d), a decrease in relative intensity with increasing modifier content was observed.…”
Section: Dms Optimizationsupporting
confidence: 86%
“…For labile 11-α GTX and CTX epimers, relative intensity increases rapidly with % modifier up to about 0.8%. This can be attributed to the protective effect of the clustered modifier to field-induced fragmentation in the DMS [28][29][30][31], similar to that reported previously for the use of CO 2 as a gas additive in FAIMS [32,33]. For more stable 11-β epimers (Figure 2d), a decrease in relative intensity with increasing modifier content was observed.…”
Section: Dms Optimizationsupporting
confidence: 86%
“…Examples from the literature currently include ketenes, as described here, as well as aryl cations, positively charged P, Si or Sn centres [3], halogen anions [4] and hydroxyl anions [15]. Solvent adducts can create problems with interpretation of MS/MS data or quantitation in targeted scan modes such as selected reaction monitoring [16], but with an understanding of their origin and properties, solvated product ions can also be highly diagnostic for the de novo identification of unknown compounds in non-target analysis [17]. An unfortunate trend has arisen in MS(/MS) spectral databases of cropping spectral data to within only a few daltons of the selected precursor m/ z, which prevents the detection of many solvent adducts (+14, +16, +18, +32).…”
Section: Solutionmentioning
confidence: 99%
“…Complimented by advantages of simplicity, size, and low cost, the use of DMS analyzers for monitoring aqueous environments is also supported by prior success of drift tube IMS instruments for monitoring ammonia in surface waters 18 , haloacetic acids in drinking water 19 , thiotetronic acids in groundwater 20 and in general environmental measurements 21 . Environmental monitoring of water using DMS analyzers is nonetheless uncommon, although some successes have been reported 22,23 .…”
Section: Introductionmentioning
confidence: 99%