气相色谱-质谱联用检测水中的邻苯二甲酸酯  

Determination of phthalic acid ester in water by gas chromatography /mass spectrometry

作　　者：李晔[1] 郭爱华[1] 

机构地区：[1]北京市宣武区疾病预防控制中心,北京100053

出　　处：《中国卫生检验杂志》2013年第7期1703-1705,1722,共4页Chinese Journal of Health Laboratory Technology

摘　　要：目的：建立了同时检测饮水中18种邻苯二甲酸酯（PAEs）的气相色谱-质谱（GC—MS）分析方法。方法：样品经正己烷提取、脱水、浓缩，经过DB-5MS色谱柱程序升温分离，选择离子监测模式测定。结果：该方法检出限（0．05～0．5）μg／L，定量限（0．15～1．5）μg/L。测定18种PAEs加标回收率为83％～110％。线性范围：（0．02～4．0）mg／L，r≥0．996，相对标准偏差0．5％～8．4％。结论：该方法操作简单、稳定、可靠，适用于水中多种PAEs的检测和确证。Objective： To establish gas chromatography -mass spectrometry（GC/MS） method to detect 18 kinds of phthalic acid esters （PAEs） in water simultaneously. Methods ： The samples were extracted by hexane, dehydra- ted, concentrated, then separated on the DB -5MS column with temperature programming, finally determined under selected ion mode. Results ： The detection limits of the method were 0.05 μg/L - 0.5 μg/L i the limits of quantity （LOQ） were 0.15 μg/L -1.5 μg/L; the recovery of 18 kinds of PAEs were 83% -110% ; the linear range were （0.02 - 4.0） mg/L, r ≥0. 996, the relative standard deviation was 0.5 % - 8.4%. Conclusion： As a simple, stable and reliable method, it can be applied to the detection and confirmation of phthalic acid esters in water.

关 键 词：气相色谱-质谱 邻苯二甲酸酯 水 

分 类 号：O657.63[理学—分析化学]