水环境中6种残留药物的固相萃取-高效液相色谱分析方法研究Simultaneous determination of six pharmaceutical residues in aquatic environment by solid phase extraction-high performance liquid chromatography
陈海红,张聪璐,伦小文,孙志,梁宁,侯晓虹
CHEN Hai-hong,ZHANG Cong-lu,LUN Xiao-wen,SUN Zhi,LIANG Ning,HOU Xiao-hong(School of Pharmaceutical Engineering
摘要(Abstract):
目的建立专属、灵敏的固相萃取-液相色谱分析方法测定污水处理厂出水中6种残留药物(氯霉素、青霉素、水杨酸、泼尼松、尼莫地平、辛伐他汀)的质量浓度。方法样品经PEP固相萃取小柱预处理后,用HPLC法测定。色谱柱:C18柱(200 mm×4.6 mm,5μm);流动相:甲醇-体积分数0.2%乙酸水溶液,梯度洗脱;流速:1.0 mL.min-1;检测波长:230 nm。结果氯霉素、青霉素、水杨酸、泼尼松、尼莫地平、辛伐他汀质量浓度分别在0.2~20.0 mg.L-1、1.0~100.0 mg.L-1、0.1~10.0 mg.L-1、0.2~20.0 mg.L-1、0.1~10.0 mg.L-1、0.1~10.0 mg.L-1内线性关系良好,相关系数均大于0.999 3,精密度(RSD)为1.1%~1.9%,平均加样回收率在73.1%~100.2%内,样品溶液在12 h内稳定性良好。结论该方法简单、灵敏、准确,可用于水环境中残留药物的分析。
Objective To develop and validate a specific,sensitive and rapid method for the simultaneous determination of six pharmaceutical residues in aquatic environment by solid phase extraction-high performance liquid chromatography.The analytes included chloramphenicol,salicylic acid,penicillin,prednisone,nimodipine and simvastatin.Methods The sample pretreatment was operated on PEP solid phase extraction column.The analytes were separated and measured on a C18 column(200 mm×4.6 mm,5 μm)with gradient elution using methanol and 0.2% acetic acid in purified water at the flow rate of 1.0 mL · min-1,and the wavelength was set at 230 nm.Results The linear ranges of chloramphenicol,penicillin,salicylic acid,prednisone,nimodipine and simvastatin were 0.2-20.0,1.0-100.0,0.1-10.0,0.2-20.0,0.1-10.0,0.1-10.0 mg · L-1,respectively.The range of precision was 1.1%-1.9%.The average recoveries of the analytes were ranging from 73.1% to 100.2% for six analytes with relative standard deviation lower than 20.0%,and sample solutions were stable within 12 h.Conclusions The method is simple,sensitive,accurate and reliable for the determination of six target analytes in aquatic environment.
关键词(KeyWords):
固相萃取;高效液相色谱法;水分析;残留药物
solid phase extraction;HPLC;water analysis;pharmaceutical residue
基金项目(Foundation): 中国博士后科学基金资助项目(2007001);; 沈阳市科技局大型仪器共享资助项目(090100)
作者(Author):
陈海红,张聪璐,伦小文,孙志,梁宁,侯晓虹
CHEN Hai-hong,ZHANG Cong-lu,LUN Xiao-wen,SUN Zhi,LIANG Ning,HOU Xiao-hong(School of Pharmaceutical Engineering
DOI: 10.14066/j.cnki.cn21-1349/r.2012.05.001
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