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酞酸酯类化合物是一种常用的增塑剂,并且广泛存在于人们日常消费用品中,其大量使用已经对环境造成了污染,许多国家将该类化合物归入水中优先检测的污染物。本文将使用分散液相微萃取的方法对水中痕量酞酸酯类化合物进行测定,结合气相色谱技术对其进行了定量分析检测。实验结果表明,萃取时间2min,对邻苯二甲酸二甲酯和邻苯二甲酸二乙酯的检出限为0.75-1.34 ug/L之间,满足实际样品的需要,并成功应用于实际水样的检测。
Phthalates are a common plasticizer and are widely used in daily consumer products. Their extensive use has caused environmental pollution. Many countries classify these compounds as preferential pollutants in water. In this paper, the disperse liquid phase microextraction method for the determination of trace phthalate esters in water, combined with gas chromatography quantitative analysis of its detection. The experimental results showed that the detection limit of dimethyl phthalate and diethyl phthalate was 0.75-1.34 ug / L for 2 min, which satisfied the needs of actual samples and was successfully applied to the actual water Kind of test.