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机构地区:[1]湖南省张家界市人民医院药剂科,湖南张家界427000
出 处:《中南药学》2009年第5期341-343,共3页Central South Pharmacy
摘 要:目的建立RP-HPLC-FLD方法测定血浆中阿替洛尔的浓度。方法血浆样品用有机溶剂(乙酸乙酯-异丙醇=4:1)提取浓缩后测定,内标法定量。色谱柱为Phenomenex C18柱(4.6mm×250mm,5μm),流动相为乙腈-水(含25mmol·L^-1磷酸二氢钠和5mmol·L^-1十二烷基磺酸钠)=30:70(v/v);激发波长:226nm,发射波长:310nm。结果阿替洛尔浓度在9.6~1200.0ng·mL^-1呈良好线性关系(r=0.9993),最低定量下限浓度为9.6ng·mL^-1,方法回收率为94.3%~104.5%(n=15),日内RSD为6.1%~11.8%(n=15),日间RSD为6.0%~11.1%(n=45)。结论本方法准确、简单、灵敏,可用于阿替洛尔的药动学研究。Objective To establish an RP-HPLC FLD method for the determination of atenolol in human plasma. Methods Atenolol was extracted by organic solvent (acetoacetate-isopropanol=4 : 1) and determined, quantified with internal standard. The separation was performed on Phenomenex C18 (4.6mm×250mm,5μm) with a mobile phase consisting of water (25 mmol·L^-1 sodium dihydrogen phosphate and 5 mmol·L^-1 sodium laurylsulfate) and acetonitrile (70 : 30, v/v). The detective wavelength was as follows: λex : 226 nm, λem = 310 nrru Results The linear range was 9.6-1 200.0 ng·mL^-1 (r=0. 999 3). The lower limit of quantification (LLOQ) was 9.6 ng·mL^-1. The method recoveries from plasma were within 94.3%-104.5% (n= 15). Intra-day and inter-day RSD was within 6.1%11.8% (n=15) and 6.0%-11.1% (n=45), respectively. Conclusion The method is accurate, simple and sensitive, and suitable for research on the pharmacokinetics of atenolol.
关 键 词:RP-HPLC-FLD 阿替洛尔 人血浆
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