Extraction and determination of trace amounts of chlorpromazine in biological fluids using magnetic solid phase extraction followed by HPLC  

作　　者：Yadollah Yamini Mohammad Faraji 

机构地区：[1]Department of Chemistry,Tarbiat Modares University,P.O.Box 14115-175,Tehran,Iran [2]Faculty of Food Industry and Agriculture,Department of Food Science & Technology,Standard Research Institute(SRI),Karaj,P.O.Box 31745-139,Iran

出　　处：《Journal of Pharmaceutical Analysis》2014年第4期279-285,共7页药物分析学报（英文版）

摘　　要：A simple, rapid and sensitive method termed as magnetic solid phase extraction （MSPE） combined with high-performance liquid chromatography-ultraviolet detector （HPLC-UV） has been proposed for the determination of trace amounts of chlorpromazine （CPZ） in water, urine and plasma samples. The separation and determination was performed on a C18 column under the optimal chromatographic conditions. Several factors influencing the extraction efficiency of CPZ, such as pH, surfactant and adsorbent amounts, ionic strength, extraction time, sample volume and desorption conditions, were studied and optimized. Under the optimal MSPE conditions, the extraction percentage of CPZ was 74%, 27% and 16% in water, urine and plasma samples, respectively. The limits of detection （LODs） of the proposed approach were 0.1, 5.0 and 10ng/mL in water, urine and plasma samples, respectively. The relative standard deviations （RSDs） based on five replicate determinations at 10 ng/mL level of CPZ was 1.2%. Good linear behaviors over the investigated concentration ranges （0.25-300 ng/mL） with good coefficient of determination, R2 〉 0.9998, were obtained. Good spike recoveries with relative errors less than 9.0% were obtained when applying the proposed method to water, urine and plasma samples.A simple, rapid and sensitive method termed as magnetic solid phase extraction （MSPE） combined with high-performance liquid chromatography-ultraviolet detector （HPLC-UV） has been proposed for the determination of trace amounts of chlorpromazine （CPZ） in water, urine and plasma samples. The separation and determination was performed on a C18 column under the optimal chromatographic conditions. Several factors influencing the extraction efficiency of CPZ, such as pH, surfactant and adsorbent amounts, ionic strength, extraction time, sample volume and desorption conditions, were studied and optimized. Under the optimal MSPE conditions, the extraction percentage of CPZ was 74%, 27% and 16% in water, urine and plasma samples, respectively. The limits of detection （LODs） of the proposed approach were 0.1, 5.0 and 10ng/mL in water, urine and plasma samples, respectively. The relative standard deviations （RSDs） based on five replicate determinations at 10 ng/mL level of CPZ was 1.2%. Good linear behaviors over the investigated concentration ranges （0.25-300 ng/mL） with good coefficient of determination, R2 〉 0.9998, were obtained. Good spike recoveries with relative errors less than 9.0% were obtained when applying the proposed method to water, urine and plasma samples.

关 键 词：CHLORPROMAZINE Magnetic solid phaseextraction 

分 类 号：O657.72[理学—分析化学] X132[理学—化学]