Detection And Distribution Of Phenolic In The Organisms And Sediments Of The Yellow Sea Coast

Alkylphenols are not only the non-ionic surfactant but also the stable degradation products of the alkylphenol ethoxylates in the environment of the industry synthesis. As a typical group of environmental endocrine disrupting chemicals, it is toxic, bioaccumulative, persistent and estrogenic. It has become a hot research field of environmental sciences in environmental distribution and behavior and also the ecological risk assessment. Therefore in this paper, we established the organisms and sediments in the analysis of alkylphenols, and also did the research about the distribution features of the phenolic compounds in the organisms and sediments of the Yellow Sea area at same time. The main conclusions through the research and experiments to be shown in the following:1) The samples of biological and sediment were used accelerated solvent extraction. Dichloromethane as the extraction solvent for 6 types of phenolic compounds in organisms; Phenolic compounds in sediments with dichloromethane: acetonitrile (1:1) as extraction solvent.2) Using the techniques of HPLC-MS/MS to detect and separate. The mass spectrometry is scanned by negative ion scan mode. The quantitative fragment ions are:NP:219.1/106.0;OP:205/106.1;BPA:227.1/212.3;2,4—DCP:161.3/125.3;POP:205/ 134.11; PTBP:149/133.3.3) In this study, the recoveries of the phenolic compounds in biological organisms to be established from 76.7% to 94.1%, and the relative standard deviation was between 3.9% and 8.4%; the recoveries of the phenolic compounds in sediments from 60.8% to 85.1%, and the relative standard deviation was between 3.9% and 9.5%.4) The limit of detection of NP and BPA in organisms and sediment were1.0 ng/ g and 0.2 ng/g respectively. The limit of detection of OP, POP, PTBP and 2,4—DCP in organisms and sediment were 2.0 ng/g and 0.50 ng/g respectively. 5) The contents'distribution features of phenolic compounds in organisms, which in the coast of Yellow Sea are:Phenolic compounds in sediment and the organisms of Yellow Sea were generally detected the residues of phenolic compounds in organisms were significantly higher than the content of phenolic compounds in sediment, leading to different levels of biological cumulative effect for a benthic class.From the above, according to the results of the distribution features for the geographic areas about the phenolic compounds in the organisms of the Yellow Sea, PTBP,OP and BPA were the main pollutants of the phenolic compounds in the organisms, whereas PTBP,OP and 2,4—DCP were the main pollutants of the phenolic compounds in the sediments. By the concentration levels of the geographic area, Jiangsu province had the highest value of concentration, followed by Shandong province and Liaoning province in decreasing order.By contrast, the related benthic biological samples in this paper are in a same magnitude level with the Yangtze basin swimming biological (fish) bodies.