Absorption and Accumulation of Di-n-butyl phthalate(DBP) and Di(2-ethylhexyl) phthalate(DEHP) and Metabolites in Four Vegetables

• Main Authors: LI Xiao-bei, ZHANG Teng, ZHOU Chang-yan, BAI Bing, CHEN Shan-shan
• Format: Article
• Language: zho
• Published: Agro-Environmental Protection Institute, Ministry of Agriculture 2017-12-01
• Series: Journal of Agricultural Resources and Environment
• Subjects: di-n-butyl phthalate(DBP), di(2-ethylhexyl) phthalate(DEHP), mono-butyl phthalate(MBP), mono-2-ethylhexyl phthalate(MEHP), vegetables, accumulation
• Online Access: http://www.aed.org.cn/nyzyyhjxb/html/2018/1/20180112.htm

The distribution and bioconcentration factor(BCF) of di-n-butyl phthalate(DBP), di(2-ethylhexyl) phthalate(DEHP) and their monoester metabolites mono-butyl phthalate(MBP), mono-2-ethylhexyl phthalate(MEHP) in four vegetables <i>Brassica campestris</i> L, <i>Spinacia oleracea, Lactuca sativa</i> and <i>Raphanus sativus</i> cultivated in treated soil were analyzed in this study. The samples were prepared with accelerated solvent extraction, QuEChERS and derivatization, and then measured using GC-MS/MS. DBP, DEHP and their metabolites MBP, MEHP were detected in four vegetables treated with high and low concentrations of DBP and DEHP. The total amount of DBP and DEHP residues(Σ₂PAEs) and their total metabolites in <i>R. sativus</i> were significantly higher than those in other vegetables. The BCF values of DEHP from the four vegetables were greater than 1, indicating an obvious bio-accumulation effect. However, the BCF values of DBP were much less than 1 in three vegetables except <i>R. sativus</i>. DBP and DEHP in the soil were absorbed by these four vegetables. And the more toxic metabolite phthalate monoesters could be found in four vegetables.