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建立了气相色谱法测定输血袋中邻苯二甲酸二乙酯(DEP)迁移量的方法。样品采用液液萃取前处理技术,通过正交试验对样品中DEP萃取条件进行系统优化,气相色谱内标法测定。在0.5~10μg/m L范围内,回归方程线性关系良好(r=0.9991),检出限为0.0023μg/m L,定量限为0.0076μg/m L,平均回收率为90.54%~98.01%,相对标准偏差为1.0%~2.9%。采用本法测得两批输血袋中DEP迁移量分别为0.0515μg/m L和0.0006μg/m L。
A gas chromatographic method for the determination of DEP in blood transfusion bags was established. The sample was pre-treated by liquid-liquid extraction. The orthogonal test was used to systematically optimize the DEP extraction conditions and determine by gas chromatography internal standard method. The linear regression equation was good (r = 0.9991) with the detection limit of 0.0023 μg / mL and the limit of quantification of 0.0076 μg / mL with the average recovery of 90.54% ~ 98.01% in the range of 0.5-10 μg / The relative standard deviation was 1.0% ~ 2.9%. The DEP migration volume in two batches of blood transfusion bags measured by this method was 0.0515 μg / mL and 0.0006 μg / mL, respectively.