| 摘要: |
| 建立了液液小体积萃取-气相色谱-质谱法快速准确测定水中邻苯二甲酸酯（PAEs）的方法。采用DB-5色谱柱分离，对空白值控制、萃取溶剂、萃取体积、萃取方式、离子源温度、进样口温度和色谱条件进行优化。在最佳实验条件下，使用选择离子扫描方式测定，PAEs测定检出限为0.21～0.46 μg/L，实际样品的加标回收率为70.0%～127%，相对标准偏差为1.39%～11.1%。结果表明，该方法操作简单，空白值低、灵敏度高、重现性好，适用于地下水、地表水和工业废水中PAEs的快速测定。 |
| 关键词: 液液萃取 气相色谱-质谱法 水 邻苯二甲酸酯 |
| DOI：DOI：10.3969/j.issn.1674-6732.2025.01.010 |
| 分类号:X832 |
| 基金项目:山东省自然科学基金资助项目（ZR2020ZD21） |
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| Optimization of Liquid-liquid Extraction with GC/MS Method for Determination of Phthalates in Water |
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LIU Jinzhi， YOU Xihua*， WANG Cong， CAO Fangfang， ZHANG Fengju
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Shandong Province Environment Monitoring Centre， Jinan， Shandong 250101， China
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| Abstract: |
| A rapid and accurate method for the determination of phthalates in water by liquid-liquid small-volume extraction with gas chromatography/mass spectrometry was developed. DB-5 column separation was used to optimize the pretreatment methods such as blank value control， extraction solvent， extraction volume， different extraction methods， ion source temperature， inlet temperature， and chromatographic conditions. Under optimal experimental conditions， the detection limit of the phthalate method was 0.21 to 0.46 μg/L by the selective ion method. The recoveries were 70.0% to 127%， and the relative standard deviations were 1.39% to 11.1%. The results show that the method is simple， has low blank values， high sensitivity， and good reproducibility， and is suitable for the rapid determination of phthalates in groundwater， surface water， and industrial wastewater. |
| Key words: Liquid-liquid Extraction GC/MS Water PAEs |
