摘要
采用高效液相色谱．电喷雾电离质谱联用法（HPLC—ESI／MS），测定纺织品中五氯酚残留量。以酸化正己烷提取纺织品试样中的残留五氯酚，在Eclipse XDB-C18柱（150mm×2．1mmI．D．，5μm）上，采用5mmol／L醋酸铵溶液／甲醇（体积比30：70）为流动相进行分离，结合电喷雾电离离子化技术，在选择离子监测（SIM）模式下进行测定，外标法定量。五氯酚检测的线性范围为5．0—500．0μg／L，定量检出限为0．005mg／kg，方法回收率为82．0％-94．4％，其RSD均小于12．5％。该法灵敏度高、操作简便、快速，适用于大批量样品的测定。
High performance liquid chromatography/electrosprayionization mass spectrometry （HPLC-ESI/MS） was applied to determine the trace pentachlorophenol（ PCP） in textiles. The PCP residue in textiles was extracted by acidified n - hexane, and then separated on Eclipse XDB-C18 column （150 mm × 2.1 mm I. D., 5 μm）with mobile phase consisting of 5 mmol/L aqueous ammonium acetate/methanol （30 ： 70, v/v）. Detection was performed on an iron trap mass spectrograph by the selective ion monitoring （SIM） in a negative mode with electrosprayionization （ESI）, and quantified by external standard method. The linear range of pentachlorophenol was 5.0 - 500.0 μg/L, the limit of quantification was 0.005 mg/kg, the recovery was 82.0 - 94.4% and the RSD was less than 12.5%. This method featured sensitive, fast and accurate, and was suitable for the determination of lot sample.
出处
《印染》
北大核心
2008年第23期40-42,共3页
China Dyeing and Finishing
关键词
测试
液相色谱法
质谱法
五氯酚
纺织品
testing
liquid phase chromatography
mass spectrometry
pentachlorophenol
textile
