The hidden risk in China's cropland conversion from the perspective of slope
文献类型：期刊论文
| 作者 | Li, Chun; Chen, Liding; Liu, Dianfeng; Wei, Junqing; He, Jianhua; Duan, Xingwu |
| 刊名 | CATENA
 |
| 出版日期 | 2021 |
| 卷号 | 93期号:44页码:14837-14843 |
| ISSN号 | 0003-2700 |
| 英文摘要 | Accurately quantifying chemical additives with adverse health effects in plastic products is critical for environmental safety and risk assessment. In this work, a novel approach using solubility parameters (d) as indicators for the extraction of additives in plastics was developed. The mechanism was evaluated by using 10 organic solvents with different solubility parameters to extract brominated flame-retardant-decabrominated diphenyl ether (BDE-209) in polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET). Certified reference materials (CRMs) or CRM candidate materials were applied as matrix materials. The extracted BDE-209 and solubility parameters of solvents could fit into a curve of a quadratic function. The value of abscissa corresponding to the vertex of the function was close to the solubility parameter of plastic calculated by the group contribution method (Delta delta < 0.37). Toluene, n-hexane, and acetone were the solvents with high extraction efficiency for PE, PP, and PET, confirming the feasibility of the developed approach. The results of ethyl acetate and acetone indicated the high weight of functional groups affecting the dissolution behavior. The developed approach was further verified by analyzing penta-/octa-BDE and phthalate esters in PET and polyvinyl chloride (PVC) and finally applied to analyze 15 plastic products made of PP, PE, PET, polystyrene, and PVC. The detected tetrabromodiphenyl ether (BDE-47), BDE-209, decabromodiphenyl ethane, and di(2-ethylhexyl) terephthalate all matched the approach and verified its practicability for field sample analysis. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46767]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Yunnan Univ, Yunnan Key Lab Int Rivers & Trans Boundary Ecosec, 2 North Cuihu Rd, Kunming 650091, Yunnan, Peoples R China 2.[Duan, Xingwu 3.Yunnan Univ, Sch Ecol & Environm Sci, 2 North Cuihu Rd, Kunming 650091, Yunnan, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 5.Wuhan Univ, Sch Resources & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China 6.Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, 129 Luoyu Rd, Wuhan 430079, Peoples R China 7.Yunnan Univ, Inst Int Rivers & Ecosecur, 2 North Cuihu Rd, Kunming 650091, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chun,Chen, Liding,Liu, Dianfeng,et al. The hidden risk in China's cropland conversion from the perspective of slope[J]. CATENA,2021,93(44):14837-14843. |
| APA | Li, Chun,Chen, Liding,Liu, Dianfeng,Wei, Junqing,He, Jianhua,&Duan, Xingwu.(2021).The hidden risk in China's cropland conversion from the perspective of slope.CATENA,93(44),14837-14843. |
| MLA | Li, Chun,et al."The hidden risk in China's cropland conversion from the perspective of slope".CATENA 93.44(2021):14837-14843. |
入库方式： OAI收割
来源：生态环境研究中心
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