Wu Di, Yin Hong-Ling, Li Shi-Ping, Wang Zeng-Wu, Deng Xu, Luo Yi, Luo Lin
College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China.
Huan Jing Ke Xue. 2019 Mar 8;40(3):1245-1251. doi: 10.13227/j.hjkx.201808038.
New GC-MS methods were developed for seven typical organophosphate esters (OPEs) including tri-n-butyl phosphate (TnBP), tris (2-ethylhexyl) phosphate (TEHP), tributoxyethyl phosphate (TBEP), triphenyl phosphate (TPhP), tri (2-chloroethyl) phosphate (TCEP), trichloropropyl phosphate (TCPP) and tridichloropropyl phosphate (TDCPP). These methods were used to quantify their concentrations in the surface water and sediment from the Jinjiang River, Chengdu. The recoveries of the target substances were 76%-119% (surface water)and 83%-126% (sediments). Total OPEs (Σ7OPEs) ranged from 689.09 to 10623.94 ng·L, with the mean of 3747.58 ng·L in the surface water. The pollution level of each monomer was in the order TBEP > TCEP > TPhP > TEHP > TCPP > TnBP. TBEP was the predominant pollutant, accounting for 36.50%-95.90% of the Σ7OPEs concentrations. The contents (dw) of the Σ7OPEs ranged from 25.52 to 296.00 ng·g in sediments, and TBEP was also the main pollutant in these samples. No significant correlation existed between the concentrations of OPEs in the surface water and sediments. Alkyl OPEs were the main pollutants in the surface water and sediments. The distribution of OPEs was influenced by the source of emissions and environmental attributes. The pairs TCPP and TnBP, TBEP and TEHP, and TCEP and TPhP might have common sources in the surface water.
针对七种典型有机磷酸酯（OPEs）开发了新的气相色谱 - 质谱联用（GC-MS）方法，包括磷酸三丁酯（TnBP）、磷酸三（2-乙基己基）酯（TEHP）、磷酸三丁氧基乙酯（TBEP）、磷酸三苯酯（TPhP）、磷酸三（2-氯乙基）酯（TCEP）、磷酸三氯丙酯（TCPP）和磷酸三（二氯丙基）酯（TDCPP）。这些方法用于定量成都锦江地表水和沉积物中它们的浓度。目标物质在地表水中的回收率为76% - 119%，在沉积物中的回收率为83% - 126%。总OPEs（Σ7OPEs）在地表水中的范围为689.09至10623.94 ng·L，平均值为3747.58 ng·L。各单体的污染水平顺序为TBEP > TCEP > TPhP > TEHP > TCPP > TnBP。TBEP是主要污染物，占Σ7OPEs浓度的36.50% - 95.90%。沉积物中Σ7OPEs的含量（干重）范围为25.52至296.00 ng·g，TBEP也是这些样品中的主要污染物。地表水中和沉积物中OPEs的浓度之间不存在显著相关性。烷基OPEs是地表水和沉积物中的主要污染物。OPEs的分布受排放源和环境属性的影响。在地表水中，TCPP和TnBP、TBEP和TEHP以及TCEP和TPhP这几对可能有共同来源。
