Application of Hi-throat/Hi-volume SPE technique in analyzing occurrence, influencing factors and human health risk of organophosphate esters (OPEs) in drinking water of China.
Application of Hi-throat/Hi-volume SPE technique in analyzing occurrence, influencing factors and human health risk of organophosphate esters (OPEs) in drinking water of China.
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DOI：
10.1016/j.jenvman.2021.112714
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发表时间：
2021-04
影响因子：
8.7
通讯作者：
Shengwei Zhang;Yanxia Li;Chao Yang;Xiang-zhou Meng;Hongyuan Zheng;Yuan Gao;Minghong Cai
中科院分区：
文献类型：
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作者：
Shengwei Zhang;Yanxia Li;Chao Yang;Xiang-zhou Meng;Hongyuan Zheng;Yuan Gao;Minghong Cai
有机磷酸酯（OPE）是典型的工业添加剂，广泛应用于各种工业和家庭产品，但它们可能会污染饮用水。在本研究中，分析了饮用水中 OPE 的发生情况。为此，从中国 25 个城市的家庭采集了 25 个饮用水样本。根据高通量有机分析测试结合大容量固相萃取（Hi-throat/Hi-volume SPE）技术，准确测定 OPE 的浓度。通过该技术，检测到 9 种 OPE，加标回收率为 77% 至 101%，总浓度 (ΣOPE) 范围为 46.8 至 251（平均 126）ng L−1。通过 Hi-throat/Hi-volume SPE 测定的所选 OPE 的检测频率为 88.0%–100%，远高于之前报道的结果。 OPE 的检测限较低，为 < 0.01 ng L−1，这主要归因于大量积累的饮用水 (>20 L)。我国饮用水中OPE从沿海省份城市到内陆城市呈现下降趋势。冗余分析表明，饮用水中 OPE 的浓度受到经济人口影响因素的显着影响。分析的饮用水中 OPE 的非致癌和终生致癌风险（非 CR 和 CR）对于中国城市居民来说可以忽略不计。
Organophosphate esters (OPEs) are typical industrial additives widely applied in various industrial and household products, but they may pollute drinking water. In the present study, the occurrence of OPEs in drinking water was analyzed. For this purpose, 25 drinking water samples were collected from households in 25 cities in China. The concentrations of OPEs were accurately determined according to a high-throughput organic analysis testing combined with high-volume solid phase extraction (Hi-throat/Hi-volume SPE) technique. Through this technique, nine OPEs were detected, with spiked recoveries from 77% to 101%, and their total concentrations (ΣOPEs) ranging from 46.8 to 251 (average 126) ng L−1. The detection frequencies of the selected OPEs determined via Hi-throat/Hi-volume SPE were 88.0%–100%, which are much higher than those previously reported. The limit of detections of the OPEs was low at < 0.01 ng L−1, which could be mainly attributed to the high volume of accumulated drinking water (>20 L). OPEs in drinking water presented a decreasing trend from cities in coastal provinces to inland cities of China. Redundancy analysis showed that the concentrations of OPEs in drinking water were significantly influenced by economic–demographic influencing factors. The non-carcinogenic and lifetime carcinogenic risks (non-CR and CR) of the analyzed OPEs in drinking water were negligible for urban residents in China.