2015
DOI: 10.1016/j.jpba.2014.08.019
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Development of a simple method for quantitation of methanesulfonic acid at low ppm level using hydrophilic interaction chromatography coupled with ESI-MS

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Cited by 19 publications
(4 citation statements)
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“…Anion‐exchange interactions are therefore expected with an H 2 O‐rich mobile phase, while hydrophilic interactions are expected with a CH 3 CN‐rich composition, as reported in previous studies (Huang et al ., ). Representative chromatograms for KYNA and Cl‐KYNA on the triazole‐bonded stationary phase with the 60:40 mobile phase at pH 3.0 are shown in Fig.…”
Section: Resultsmentioning
confidence: 97%
See 1 more Smart Citation
“…Anion‐exchange interactions are therefore expected with an H 2 O‐rich mobile phase, while hydrophilic interactions are expected with a CH 3 CN‐rich composition, as reported in previous studies (Huang et al ., ). Representative chromatograms for KYNA and Cl‐KYNA on the triazole‐bonded stationary phase with the 60:40 mobile phase at pH 3.0 are shown in Fig.…”
Section: Resultsmentioning
confidence: 97%
“…Currently, several commercially marketed HILIC columns are available containing bonded stationary phases such as dihydroxypropyl (diol), amide, aminopropyl, cyano, sulfobetain and phosphorylcholine (Guo and Gaiki, 2011). In addition, a weakly basic, triazole-bonded stationary phase column (Cosmosil® HILIC) has been reported to be useful for separation of small organic acids, including highly acidic alkyl (methyl to octyl) sulfonic acids (Huang et al, 2015). The precise retention mechanism by the triazole-bonded column is not fully understood, but it has been suggested that either hydrophilic interactions at the polar surface or anion-exchange interactions with protonated triazole in the stationary phase may retain polar and ionic compounds, respectively.…”
Section: Introductionmentioning
confidence: 99%
“…MS has become an effective detection technique due to its high sensitivity and selectivity (27). The fragment of CTC was obtained with the ESI interface in both positive and negative ion modes.…”
Section: -mentioning
confidence: 99%
“…Using a chiral fluorescence reagent, ( R )‐4‐(3‐isothiocyanatopyrrolidin‐1‐yl)‐7‐( N , N ‐dimethylaminosulfonyl)‐2,1,3‐benzoxadiazole (DBD‐PyNCS), we recently found that the l ‐Trp and l ‐KYN derivatives can be detected with high sensitivity by high‐performance liquid chromatography (HPLC) with a triazole‐bonded column (Cosmosil HILIC) and tandem mass‐spectrometric (MS/MS) detection. The column contains a unique stationary phase that induces hydrophilic or ion‐exchange interactions with polar compounds.…”
Section: Introductionmentioning
confidence: 99%