| 引用本文: | 罗惠莉,杨怡萱,黄一璐,等.灌溉沟渠水中双酚类化合物浓度与分布特征研究[J].灌溉排水学报,2023,42(4):123-128. |
| LUO Huili,YANG Yixuan,HUANG Yilu,et al.灌溉沟渠水中双酚类化合物浓度与分布特征研究[J].灌溉排水学报,2023,42(4):123-128. |
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| 摘要: |
| 【目的】分析灌溉沟渠水和沉积物中的双酚类化合物（BPs）的种类、浓度与分布特征。【方法】通过优化检测条件，建立可同时检测3种BPs的高效液相色谱-荧光（HPLC-FLD）检测方法。通过比较过滤和离心2种处理方法对灌溉水样的检测效应，确定适宜的样品前处理方法。通过实地采样检测，分析菜地和稻田沟渠水和沉积物中主要BPs的质量浓度和分布特征，建立了线性良好的HPLC-FLD检测方法。【结果】双酚S（BPS）的LOD为0.2 μg/L；双酚F（BPF）和双酚A（BPA）的LOD均为0.02 μg/L。沟渠水样经离心处理后的添加回收率达到76.69%~99.03%。沟渠水和沉积物中BPF的检出率和检出量较高，检出率分别为100%和88.89%；最大检出量分别为1.45 μg/L和587.4 μg/kg。沉积物中BPF、BPA和BPS的质量浓度最高为水相中的962.95、871.82倍和72.81倍。【结论】灌溉水中悬浮颗粒物较多，采用离心处理水样相比过滤更为适宜。BPF和BPA易附着在颗粒物上，而BPS则易存在于水中。BPF是本次检测的灌溉水及其沉积物中的主要BPs。 |
| 关键词: 液相色谱；双酚；环境激素；灌溉 |
| DOI：10.13522/j.cnki.ggps.2022272 |
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| 基金项目: |
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| Study on Concentration and Distribution Characteristics of Bisphenol Compounds in Irrigation Ditch Water |
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LUO Huili, YANG Yixuan, HUANG Yilu, XIE Zhenzeng
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1. Hunan Agricultural University, Changsha 410128, China; 2. Engineering Technology Center of Livestock Breeding and
Planting Pollution Control in Hunan Environmental Protection, Changsha 410128, China
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| Abstract: |
| 【Objective】Bisphenol compounds of different origins have been found in many terrestrial ecosystems in across China. Their accurate detection is a key to mitigating their impact on the environment. In this paper, we present an improved method to reliably detect BPs in water and sediment in irrigation districts.【Method】A high-performance liquid chromatography-fluorescence (HPLC-FLD) method was established for simultaneously measuring three types of bisphenol compounds. Suitable pre-treatment method for detecting these compounds was selected from the filtration method and centrifugation method by comparing their efficiency. The tested method was then used to analyze main bisphenol compounds in water and sediment samples taken from vegetable and paddy fields. 【Result】The HPLC-FLD can detect BPS when its concentration is not lower than 0.2 μg/L, while for BPF and BPA, the method can detect them when their concentrations are as low as 0.2 μg/L. The centrifugation method can recover 76.69% to 99.03% of the water from the samples, and the detection rate for BPF in ditch water and sediment is 100% and 88.89%, respectively. The greatest BPs concentration the method can detect is 1.45 μg/L for water samples and 587.4 μg/kg for sediment samples. The contents of BPF, BPA and BPS in the sediment samples are 962.95 times, 871.82 times and 72.81 times those in the water samples, respectively.【Conclusion】The centrifugation method works better for pretreating the samples. BPF is the main BPs detected in water and sediment samples taken from the vegetable and paddy fields. BPs in sediments are substantially higher than in water. |
| Key words: liquid chromatography; bisphenols; environmental hormones; irrigation |
