基于近红外光谱的新疆土壤铅含量测定方法研究  

Preliminary study on rapid determination of heavy metals in farmland soils from Xinjiang based on near infrared spectroscopy

作　　者：苏比努尔·哈力木拉提 杨一鸣[4] 阿依古丽·塔什波拉提 高庆国 章媛媛 Subinur·Halmurat;Yang Yiming;Aygul·Taxpolat;Gao Qingguo;Zhang Yuanyuan(Xinjiang Academy of Environment Protection Science,Urumqi Xinjiang 830011,China;Xinjiang Key Laboratory for Environmental Pollution Monitoring and Risk Warning,Urumqi Xinjiang 830011,China;Xinjiang Engineering Technology Research Center for Cleaner Production,Urumqi Xinjiang 830011,China;Northwest Minzu University,Lanzhou Gansu 730000,China;Academy of Instrumental Analysis,Xinjiang Uygur Autinomous Regin,Urumqi Xinjiang 830011,China)

机构地区：[1]新疆环境保护科学研究院,新疆乌鲁木齐830011 [2]新疆环境污染监控与风险预警重点实验室,新疆乌鲁木齐830011 [3]新疆清洁生产工程技术研究中心,新疆乌鲁木齐830011 [4]西北民族大学化工学院,甘肃兰州730000 [5]新疆分析测试研究院,新疆乌鲁木齐830011

出　　处：《环境与发展》2020年第9期122-124,130,共4页Environment & Development

摘　　要：本文以新疆北部农田土壤为研究对象,利用近红外光谱技术建立了该区农田土壤中铅含量的定量预测模型并对所建立的模型进行优化,以便快速测定土壤中铅含量。结果表明:优化后定量预测模型的校正集预测值与测定值之间的相关系数RC为0.99,校正集标准差SEC为0.96,验证集标准差SEP为1.27,交互检验验证集标准差SECV为1.15,预测值与实测值的相对偏差为1.49%~9.00%。该定量模型具有较高的预测效果,可用于快速定量预测新疆北部农田中土壤中铅含量。Lead contents in farmland soil in northern Xinjiang Uygur Autonomous Region was studied in this paper,a quantitative prediction model of the lead content in farmland soil in this area was established by using near infrared spectroscopy,and the model was optimized in order to quickly determine the lead content in the soil.The results indicated that the correlation coefficient RC between the predicted and measured values of the calibration set is 0.99,the standard deviation of the calibration set(SEC)is 0.96,the standard deviation of the verification set(SEP)is 1.27,the standard deviation of the interactive verification set(SECV)is 1.15,and the relative deviation between the predicted and measured values is 1.49-9.00%.The quantitative model has a high prediction effect and can be used for rapid quantitative analysis of soil lead content in farmland in northern Xinjiang Uygur Autonomous Region.

关 键 词：土壤 铅含量 近红外光谱 定量模型 

分 类 号：X830.2[环境科学与工程—环境工程]