高效液相色谱法测定地下水中洛克沙胂
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摘要
地下水水样经磷酸二氢钾提取后,用MAX固相萃取小柱对其净化、浓缩,再用高效液相色谱仪测定样品中的洛克沙胂。对色谱条件进行优化,使该方法在0.500 mg/L~10.0 mg/L范围内线性良好,方法检出限为0.047μg/L。空白加标样6次测定结果的RSD为5.3%,空白水样的3个质量浓度水平的加标回收率为79.8%~88.8%。将该方法用于测定6个地下水实际样品中洛克沙胂,其中1个被检出,测定值为0.42μg/L。
A method was developed for analysis of roxarsone in groundwater by potassium dihydrogen phosphate extraction,MAX cartridge concentration,and high performance liquid chromatography determination.The linear range was good from 0. 500 mg / L to 10. 0 mg / L,the testing results showed the detection limit was0. 047 μg / L. The RSD of six spiked blank samples was 5. 3%. The recoveries of blank samples spiked with three mass concentrations were 79. 8% ~ 88. 8%. Six groundwater samples were tested by this method,only one was detected roxarsone of 0. 42 μg / L.
A method was developed for analysis of roxarsone in groundwater by potassium dihydrogen phosphate extraction,MAX cartridge concentration,and high performance liquid chromatography determination.The linear range was good from 0. 500 mg / L to 10. 0 mg / L,the testing results showed the detection limit was0. 047 μg / L. The RSD of six spiked blank samples was 5. 3%. The recoveries of blank samples spiked with three mass concentrations were 79. 8% ~ 88. 8%. Six groundwater samples were tested by this method,only one was detected roxarsone of 0. 42 μg / L.
引文
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[5]冯翰林.洛克沙胂在土壤中的环境行为研究[D].武汉:华中农业大学,2011:13-14.
[6]黄连喜,何兆桓,曾芳,等.液相色谱-氢化物发生-原子荧光联用同时测定洛克沙胂及其代谢物[J].分析化学,2010,38(9):1321-1324.
[7]胡文凌,庞明,余卫娟,等.分散液液微萃取与超高效液相色谱-串联质谱联用测定土壤和沉积物中三丁基锡[J].中国环境监测,2014,30(4):155-160.
[8]叶凤娇,孔德洋,单正军,等.固相萃取-高效液相色谱法同时测定水中12种磺酰脲类除草剂[J].环境监测管理与技术,2011,23(2):36-40.
[9]王英,张占恩.固相萃取-GC/MS法测定水中邻苯二甲酸酯类[J].环境监测管理与技术,2009,21(3):41-44.
[2]GARBARINO J R,BEDNAR A J,RUTHERFORD D W,et al.Environmental fate of roxarsone in poultry litter.I.degradation of roxarsone during composting[J].Environmental Science and Technology,2003,37(8):1509-1514.
[3]MILLER C V,HANCOCK T C,DENVER J M.Environmental fate and transport of arsenical feed amendments for animal agriculture[R].Washington DC:American Geophysical Union,2000.
[4]白亚楠,郑增忍,邹明,等.高效液相色谱法检测鸡粪便中洛克沙胂[J].动物医学进展,2010,31(12):79-82.
[5]冯翰林.洛克沙胂在土壤中的环境行为研究[D].武汉:华中农业大学,2011:13-14.
[6]黄连喜,何兆桓,曾芳,等.液相色谱-氢化物发生-原子荧光联用同时测定洛克沙胂及其代谢物[J].分析化学,2010,38(9):1321-1324.
[7]胡文凌,庞明,余卫娟,等.分散液液微萃取与超高效液相色谱-串联质谱联用测定土壤和沉积物中三丁基锡[J].中国环境监测,2014,30(4):155-160.
[8]叶凤娇,孔德洋,单正军,等.固相萃取-高效液相色谱法同时测定水中12种磺酰脲类除草剂[J].环境监测管理与技术,2011,23(2):36-40.
[9]王英,张占恩.固相萃取-GC/MS法测定水中邻苯二甲酸酯类[J].环境监测管理与技术,2009,21(3):41-44.