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| Determination of 4-Nonylphenol in Soil by Ultrasonic-assisted Extraction and High Performance Liquid Chromatography |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:4-nonylphenol ultrasonic-assisted extraction high performance liquid chromatography soil |
| Author | Institution |
| 蔡全英，黄慧娟，吕辉雄，曾巧云，莫测辉，张君，田军建 |
1.华南农业大学资源环境学院广东高校土壤环境与废物资源农业利用重点实验室;2.暨南大学环境工程系广东高校水土环境毒害性污染物防治与生物修复重点实验室 |
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| Abstract: |
| Based on the comparison of extraction efficiencies of two extraction methods and different organic solvents，an ultrasonic-assisted extraction procedure coupled with high performance liquid chromatography(HPLC) with UV detector was developed for the determination of 4-nonylphenol(4-NP) in soil.The results showed that the extraction efficiency of 4-NP in soil by ultrasonic-assisted extraction with dichloromethane was higher than that by the Soxhlet-extraction method.The results of ultrasonic-assisted extraction with different organic solvents demonstrated that the extraction efficiencies decreased in an order of dichloromethane-methanol(9∶1)＞dichloromethane＞methanol≈acetone. The recoveries of 4-NP in soil at three spiked levels of 10，20,40 mg/kg ranged from 91% to 94% with relative standard deviations(RSDs) of 4.3%-7.2%，and the detection limit of method for 4-NP was 2.0 μg/kg.The method was applied in the determination of 4-NP in soil samples collected from Guangdong Province，and the results showed that the concentrations of 4-NP varied from 5.3 μg/kg to 16 μg/kg by dry weight,which were lower than those obtained from the wastewater irrigated soil of Hebei Province.This method is rapid，sensitive，reproducible and suitable for the determination of 4-NP in soil. |
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