Abstract：
NPPs (Non-phthalate plasticizers) are used as alternative plasticizers to phthalate esters, but there is limited knowledge on environmental residues, and they have not been reported in Japan. A method to analyze NPPs in seawater using solid-phase extraction was developed, and the residual burden of Diisobutyl adipate (DIBA), Acetyl tributyl citrate (ATBC), Di-(2-ethylhexyl) adipate (DEHA), Di-(2-ethylhexyl) sebacate (DEHS) and Trioctyl trimellitate (TOTM) in seawater and sediment from the Osaka Bay was measured. Using an Oasis Max column and acetone as the eluting solvent, the recovery of the target substances in seawater is >68 %. In Osaka Bay, no NPPs were detected in seawater. On the other hand, ATBC and TOTM were detected in the sediment at 36-69 ng/g and 47-131 ng/g, respectively, from about half of the 14 sites, while DEHA and DEHS were detected at 83 ng/g and 181 ng/g, respectively, from only one site.
摘要：
NPP（非邻苯二甲酸酯增塑剂）用作邻苯二甲酸酯的替代增塑剂，但是对环境残留物的了解有限，在日本还没有报道。建立了利用固相萃取技术分析海水中NPPs的方法,和己二酸二异丁酯（DIBA）的残余负荷，乙酰柠檬酸三丁酯(ATBC),己二酸二(2-乙基己基)酯(DEHA),测量了大阪湾海水和沉积物中的癸二酸二（2-乙基己基）酯（DEHS）和偏苯三酸三辛酯（TOTM）。使用OasisMax色谱柱和丙酮作为洗脱溶剂，海水中目标物质的回收率>68%。在大阪湾,在海水中未检测到NPP。另一方面,在沉积物中检测到ATBC和TOTM，分别为36-69ng/g和47-131ng/g，分别,从14个地点的大约一半，而DEHA和DEHS分别检测到83ng/g和181ng/g，分别,只有一个网站。
