【标题】Determinationof Decabrominated Diphenyl Ether in Soils by Soxhlet Extraction andHigh Performance Liquid Chromatography.
【期刊】ScientificWorld Journal
【第一作者】杨行建
【摘要】Thisstudy described the development of a method based on soxhletextraction combining high performance liquid chromatography (soxhlet-HPLC) for the accurate detection of BDE-209 in soils. The solventeffect of working standard solutions in HPLC was discussed. Resultsshowed that 1 : 1 of methanol and acetone was the optimal conditionwhich could totally dissolve the BDE-209 in environmental samples andavoid the decrease of the peak area and the peak deformationdifference of BDE-209 in HPLC. The preliminary experimentwasconducted on the configured grassland (1 mu g/ g) to validatethemethod feasibility. Themethod produced reliable reproducibility,simulated soils (N= 4) RSD 1.0%, and was further verified by theanalysis e-waste contaminated soils, RSD range 5.9-11.4%. Thecontamination level of BDE-209 in burning site was consistent withthe previous study of Longtang town but lower than Guiyu town, andhigher concentration of BDE-209 in paddy fieldmainly resulted fromthelong-standing disassembling area nearby. This accurate and fastmethod was successfully developed to extract and analyze BDE-209 insoil samples, showing its potential use for replacing GC todeterminate BDE-209 in soil samples.