土壤样品重金属元素分析任务书

 2022-01-27 03:01

全文总字数:2443字

1. 毕业设计(论文)的内容和要求

环境污染方面所指的重金属主要是指生物毒性显著的汞、镉、铅、铬以及类金属砷,还包括具有毒性的重金属铜、锌、镍、钒、锡、钴等污染物。

重金属不能为土壤微生物所分解,而易于积累,并可能通过食物链危害人体健康。

人为因素造成土壤重金属污染是当今世界越来越不容忽视的环境问题。

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2. 实验内容和要求

1、土壤样品预处理2、土壤样品重金属元素总量分析3、土壤样品重金属元素生物可利用性分析要求:通过实验掌握土壤样品预处理方法、土壤样品重金属元素总量分析方法和土壤重金属元素生物可利用性分析方法,同时要求熟悉和掌握相应仪器设备的使用法。

3. 参考文献

1.Abdallah, M. A. M. Ecological risk assessment of heavy metals from the surficial sediments of a shallow coastal lagoon. Egypt Environmental Technology, 2011,32(9): 979988.2.Zhang Y, Zhang P, Shang X, Lu Y, Li Y, Exposure of lead on intestinal structural integrity and the diversity of gut microbiota of common carp, Comparative Biochemistry and Physiology, Part C, 2021, 239: 1088773.Cai, J. N., Cao, Y. Z., Tan, H. J., Wang, Y. M., Luo, J. Q. Fractionation and ecological risk of metals in urban river sediments in Zhongshan City, Pearl River Delta. Journal of Environmental Monitoring, 2011, 13(9), 24502456.4.Moncls L, Shore R F, Krone O. Lead contamination in raptors in Europe: A systematic review and meta-analysis. Science of the Total Environment, 2020, 748: 141437.5.Shifaw E. Review of Heavy Metals Pollution in China in Agricultural and Urban Soils, J Health Pollution, 2018, 18: 180607.6.Fan Y, Zhu T, Li M, He J, Huang R. Heavy Metal Contamination in Soil and Brown Rice and Human Health Risk Assessment near Three Mining Areas in Central China. Journal of Healthcare Engineering, Journal of Healthcare Engineering Volume 2017, https://doi.org/10.1155/2017/41243027.Caporale A G, Violante A. Chemical Processes Affecting the Mobility of Heavy Metals and Metalloids in Soil Environments. Korea. Curr Pollution Rep, 2016, 2:1527.8.Su C, Jiang L, Zhang W. A review on heavy metal contamination in the soil worldwide: Situation, impact and remediation techniques. Environmental Skeptics and Critics, 2014, 3(2): 24-38.

4. 毕业设计(论文)计划

2019.12.28-2020.2.28 布置课题,根据课题要求开始查阅文献,撰写并提交开题报告,完成文献翻译。

2020.2.29-2020.3.14 整理实验室,熟悉实验室各项操作及规定2020.3.15-2020.3.31 土壤样品预处理2020.4.1-2020.4.30 土壤样品重金属总量的分析2020.5.1-2020.5.25 可利用态分析等2020.5.26-2020.6.3 整理数据, 补充实验,撰写论文2015.6.3- 完成并修改论文准备答辩

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