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分散液-液微萃取/高效液相色谱法测定水样中的痕量双酚A
引用本文:李鱼,刘建林,王晓丽,翦英红,董德明,黎娜.分散液-液微萃取/高效液相色谱法测定水样中的痕量双酚A[J].高等学校化学学报,2008,29(11):2142-2148.
作者姓名:李鱼  刘建林  王晓丽  翦英红  董德明  黎娜
作者单位:1. 华北电力大学能源与环境研究中心,北京,102206;吉林大学环境与资源学院,长春,130012
2. 华北电力大学能源与环境研究中心,北京,102206
3. 吉林大学环境与资源学院,长春,130012
基金项目:国家重点基础研究发展规划(973计划)  
摘    要:建立了分散液-液微萃取与高效液相色谱联用技术测定水样中痕量双酚A(BPA)的方法. 通过对实验条件的筛选及优化, 得到最佳条件: 22.5 μL氯苯作萃取剂、0.5 mL丙酮作分散剂、0 min静止萃取时间、调节pH 3.2左右、10%离子强度及9 mL水样体积. 此条件下方法的线性范围为0.5~100 μg/L(R2=0.9941), 检出限为0.10 μg/L. 在BPA质量浓度为1 μg/L条件下, 方法回收率为87.8%~111.0%, 相对标准偏差8.3%(n=5), 富集倍数范围1905~2527. 对添加不同BPA浓度的自来水、地表水及回用中水进行分析, 回收率分别为(108±11.1)%, (107±13.2)%及(81.2±6.2)%(n=3). 在既定的色谱条件下, BPA的测定不受乙炔基雌二醇、雌二醇、雌三醇、雌酮和壬基酚等雌激素的干扰.

关 键 词:分散液-液微萃取  高效液相色谱法  双酚A  氯苯  丙酮  雌激素
收稿时间:2008-06-09

Determination of Trace Bisphenol A in Water by High Performance Liquid Chromatography with Dispersive Liquid-liquid Microextraction
LI Yu,LIU Jian-Lin,WANG Xiao-Li,JIAN Ying-Hong,DONG De-Ming,LI Na.Determination of Trace Bisphenol A in Water by High Performance Liquid Chromatography with Dispersive Liquid-liquid Microextraction[J].Chemical Research In Chinese Universities,2008,29(11):2142-2148.
Authors:LI Yu  LIU Jian-Lin  WANG Xiao-Li  JIAN Ying-Hong  DONG De-Ming  LI Na
Institution:Energy and Environment Research Centre, North China Electric Power University, Beijing 102206, China; ;College of Environment and Resource, Jilin University, Changchun 130012, China
Abstract:Determination of bisphenol A(BPA) of trace level in water was performed by dispersive liquid-liquid microextraction(DLLME) and high performance liquid chromatography. The optimal conditions of 22.5 μL of extraction solvent(chlorobenzene), 0.5 mL of disperser solvent(acetone), 0 min of extraction time, 10% of ionic strength, 3.2 of pH value and 9 mL of water sample volume, were obtained by screening and optimization design. Under the optimum conditions, the linear range is 0.50—100 μg/L(R2=0.9941) and the limit of detection is 0.10 μg/L for determination of BPA. The recovery from 87.8% to 111.0%, RSD of 8.3%(n=5) and enrichment factor from 1905 to 2527 were obtained at a mass concentration of BPA of 1 μg/L. The relative recoveries of BPA from tap water, river water and recycled water at spiking different levels are (108±11.1)%, (107±13.2)%, and (81.2±6.2)%(n=3), respectively. Moreover, under the determined chromatographic conditions, the effects of acetylene estradiol, estradiol, estriol, estrone and nonylphenol on the determination of BPA in water by high performance liquid chromatography with dispersive liquid-liquid microextraction were not of existence.
Keywords:Dispersive liquid-liquid microextraction  High performance liquid chromatography  Bisphenol A  Chlorobenzene  Acetone  Estrogen
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