title: Determination of trace triclosan in environmental water by microporous bamboo-activated charcoal solid-phase extraction combined with HPLC-ESI-MS.
abstract: A sensitive and efficient analytical method for triclosan (TCS) determination in water, which involves enrichment with bamboo-activated charcoal and detection with HPLC-ESI-MS, was developed. The influence of several operational parameters, including the eluant and its volume, the flow rate, the volume andacidity of the sample, and the amount of bamboo-activated charcoal, were investigated and optimized. Under the optimum conditions, linearity of the method was observed in the range of 0.02-20 μg/L, with correlation coefficients (r(2) ) >0.9990. The limit of detection was 0.002 μg/L based on the ratio of chromatographic signal to baseline noise (S/N = 3). The spiked recoveries of TCS in real water samples were achieved in the range of 97.6-112.5%. The proposed method was applied to analyze TCS in real aqueous samples. All the surface water samples collected in Xiaoqing River had detectable levels of TCS with concentrations of 42-197 ng/L.
authors.affiliation: School of Light Chemistry and Environmental Engineering, Shandong Polytechnic University, Jinan, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
authors.forename: Chun-Liang
authors.initials: CL
authors.lastname: Yi
authors.forename: Ru-Song
authors.initials: RS
authors.lastname: Zhao
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Wen-Qiang
authors.initials: WQ
authors.lastname: Jiang
authors.forename: Xi-Kui
authors.initials: XK
authors.lastname: Wang
mesh_terms: D002606:Charcoal / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D052616:Solid Phase Extraction / Q000379:methods*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D014260:Triclosan / Q000032:analysis* / Q000302:isolation & purification*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000302:isolation & purification*
chemical_list: D014874:Water Pollutants, Chemical; D002606:Charcoal; D014260:Triclosan