同位素稀释三重串联四级杆质谱法测定饮用水中4种增塑剂
目的 建立同位素稀释-气相色谱-三重四级杆质谱法同时测定饮用水中3种邻苯二甲酸酯和己二酸二(2乙基己基)酯的方法。方法 样品采用正己烷提取后, 气相色谱三重四极杆质谱检测, 内标法定量。结果 方法具有良好线性, 相关系数R均大于0.998, 定量限为0.1~0.5 g/L。各组分平均回收率为92.3%~105.3%, 相对标准偏差为0.4 %~5.5%。实际样品中3种增塑剂有检出。结论 该方法操作简单, 准确度和灵敏度高, 重现性好, 可作为生活饮用水中增塑剂含量检测的确证方法。
Objective To develop a method for the simultaneous determination of 4 plasticizers in drinking water by isotope dilution-gas chromatography coupled with triple quadrupole mass spectrometry (GC-MS/MS). Methods Four plasticizers in the tested sample were extracted with n-hexane. The extraction was determined by GC-MS/MS, using internal standard method. Results The correlation coefficients (R) of 4 plasticizers were over 0.998, the limits of quantitation for 4 plasticizers were 0.1~0.5 g/L. The average recoveries of 4 plasticizers in drinking water were ranged from 92.3 % to 105.3 %. In addition, the relative standard deviations (RSDs) were in the range of 0.4%~5.5 %. Conclusion The method has advantages of simplicity, sensitivity and repeatability, and is suitable for the analysis of phthalate acid esters in drinking water.
标题：同位素稀释三重串联四级杆质谱法测定饮用水中4种增塑剂
英文标题：Determination of 4 plasticizers in drinking water by isotope dilution triple quadrupole mass spectrometry
作者：
徐清 福州大学生物科学与工程学院;福建省产品质量检验研究院
林向阳 福州大学生物科学与工程学院
王征 福建省产品质量检验研究院
中文关键词:饮用水,同位素稀释,气相色谱-三重四级杆质谱法,增塑剂,
英文关键词:drinking water,isotope dilution,gas chromatography coupled with triple quadrupole mass spectrometry,plasticizers,
发表日期：2014-05-28
- 文件大小:
- 1.53 MB
- 下载次数:
- 60
-
高速下载
|
|
