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Molybdenum Disulfide as a Dispersive Solid‐Phase Extraction Adsorbent for Determination of Sulfonamide Residues in Water Samples Using Capillary Electrophoresis
Author(s) -
An Jianxin,
Wang Xuan,
Ye Nengsheng
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701382
Subject(s) - capillary electrophoresis , sulfadimidine , chromatography , solid phase extraction , chemistry , extraction (chemistry) , sulfathiazole , elution , sulfamerazine , sulfadiazine , adsorption , biochemistry , organic chemistry , antibiotics
In this research, molybdenum disulfide (MoS 2 ) was used as an adsorbent in dispersive solid‐phase extraction (DSPE) for the pretreatment of sulfonamides (SAs) in water samples. Four types of SA (sulfadimidine, sulfathiazole, sulfadiazine, and sulfamethoxazole) were enriched by DSPE. Parameters for DSPE, including extraction time and elution time, were investigated. After pretreatment using DSPE, the SAs were separated by capillary zone electrophoresis (CZE) under optimal analytical conditions. A linear relationship was shown for these SAs in the ranges of 0.5‐50 and 0.5‐30 μg/mL, and the linearity (R 2 > 0.9911) and precision (between 0.65% and 9.10%) were good. Thus, this analytical technique can achieve stable, reproducible and efficient separation of SAs, and the developed DSPE method enables the preconcentration of SAs from environmental water samples.