在线凝胶色谱-气相色谱-质谱法快速测定白酒中 邻苯二甲酸酯的含量
目的 采用在线凝胶色谱-气相色谱-质谱(gel permeation chromatography-gas chromatography-mass spectrometry, GPC-GC-MS)检测方法测定白酒中的邻苯二甲酸酯类物质(phthalate acid esters, PAEs)。方法 白酒样品不经前处理, 混匀后采用在线GPC-GC-MS直接进样分析其中的PAEs含量。结果 在0.10~10.0 mg/L范围内, PAEs的峰面积与浓度间的线性关系良好(r2≥0.9909), 方法检出限为0.7~2.8 μg/L, 定量限为2.3~9.2 μg/L; 在0.10、1.0、10.0 mg/mL 3个添加水平下, PAEs的平均回收率为80.4%~95.6%, 相对标准偏差为1.5%~6.5%。结论 本方法简单、快速、塑化剂污染风险低、自动化程度较高, 且准确度、精密度和高灵敏度较高, 适用于白酒中PAEs的快速分析检测。
Objective To establish a method for determination of phthalate acid esters (PAEs) in liquor by on-line gel permeation chromatography-gas chromatography-mass spectrometry (GPC-GC-MS). Methods Without pretreatment, the liquor sample was analyzed by GPC-GC-MS for its content of PAEs after being mixed. Results There were good linear relationships between the peak areas of PAEs and their corresponding concentration which ranged from 0.10 mg/L to 10.0 mg/L with correlation coefficients not less than 0.9909. The limits of detection of method were 0.7~2.8 μg/L, the limits of quantification were 2.3~9.2 μg/L, and the average recoveries of PAEs ranged from 80.4% to 95.6% at 3 different spiked levels with the relative standard deviations were between 1.5% and 6.5%. Conclusion This method is simple, quick, and has low risks of plasticizer contamination, high automation, accuracy, precision and sensitivity, which is suitable for the rapid analysis of PAEs in liquor.
标题：在线凝胶色谱-气相色谱-质谱法快速测定白酒中 邻苯二甲酸酯的含量
英文标题：Rapid determination of phthalate acid esters in liquor by on-line gel permeation chromatography-gas chromatography-mass spectrometry
作者：
李俊 贵州省农产品质量安全监督检验测试中心
郭晓关 贵州省农产品质量安全监督检验测试中心
杜楠 贵州省农产品质量安全监督检验测试中心
中文关键词:白酒,邻苯二甲酸酯,凝胶色谱,气相色谱-质谱法,
英文关键词:liquor,phthalate acid esters,gel permeation chromatography,gas chromatography-mass spectrometry,
发表日期：2016-08-27
- 文件大小:
- 432.48 KB
- 下载次数:
- 60
-
高速下载
|
