title: Determination of 4-tert-octylphenol in surface water samples of Jinan in China by solid phase extraction coupled with GC-MS.
abstract: Octylphenols, considered as xenoestrogens, mainly exist as 4-tert-octylphenol (OP) in aquatic environments. The high stability and accumulation of OP in aquatic systems have caused endocrine disruption. The OP in surface water in Jinan, China was analyzed by gas chromatography-mass spectrometry (GC-MS) coupled with solid phase extraction (SPE). Water samples were extracted by SPE on a cartridge system containing C-18 as sorbent. To increase sensitivity and selectivity, OP was derivatized to 4-tert-octyl-phenoxy silane. With the use of phenanthrene-d10 as internal standard, the detection limit based on signal-to-noise ratio (S/N = 3) was 0.06 ng/mL. The average recovery was from 84.67% to 109.7%. The precision of the method given as the relative standard deviations (RSD) was within the range 6.24%-12.96%. In the target water samples, the concentrations of OP were as follows: 15.88-71.24 ng/L for Jinxiuchuan Reservoir, 3.850-26.68 ng/L for the city moat, 6.930-41.56 ng/L for Daming Lake, 66.03-474.2 ng/L for Xiaoqing River, 14.66-17.72 ng/L for the Yellow River, and 10.60-26.43 ng/L for Queshan Reservoir. The Xiaoqing River was seriously polluted due to the discharge of wastewater from Jinan. Jinxiuchuan Reservoir had a higher concentration of OP compared with the Yellow River and Queshan Reservoir, which is ascribed to the surrounding human activities. These data are reported for the first time, providing strong support for the control of OP pollution in Jinan.
authors: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. sohn_yxy@163.com
authors: Xueyu
authors: X
authors: Yang
authors: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors: Mingren
authors: M
authors: Liu
authors: School of Resources and Environment, University of Jinan, Jinan 250022, China.
authors: Zhongpeng
authors: Z
authors: Wang
authors: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors: Qian
authors: Q
authors: Li
authors: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors: Zhaoliang
authors: Z
authors: Zhang
mesh_terms: D002138:Calibration; D002681:China; D052244:Endocrine Disruptors / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D010636:Phenols / Q000032:analysis*; D011786:Quality Control; D052616:Solid Phase Extraction / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D052244:Endocrine Disruptors; D010636:Phenols; D014874:Water Pollutants, Chemical; C105260:4-tert-octylphenol