CAJ | 학술논문

建立起HNO_3-H_2O_2-HF体系微波消解前处理样品,利用电感耦合等离子体质谱(ICP-MS)同时测定土壤中的铬(Cr)、镍(Ni)、铜(Cu)、砷(As)、铊(Tl)、铅(Pb)6种重金属元素含最的方法.该方法的相关系数在0.9996～1.000,相对标准偏差在0.669%～3.02%,加标回收率为94.68%～115.5%,枪出限为2.004～312.4 ng/L,结果表明该方法满足重金属分析的要求.用建立起的方法测定了来自湖南、湖北、云南、贵州、河南、福建、辽宁7个省45个产区烟田土壤中的Cr、Ni、Cu、As、Tl和Pb 6种重金属元素含量;与对应烟叶中的6种重金属含最相比,聚类分析结果表明不同省区间土壤中的重金属含量无明显差异,而烟叶中却差异明显.、铊(Tl)、铅(Pb)6种重金属元素含最的方法.该方法的相关系数在0.9996～1.000,相对标准偏差在0.669%～3.02%,加标回收率为94.68%～115.5%,枪出限为2.004～312.4 ng/L,结果表明该方法满足重金属分析的要求.用建立起的方法测定了来自湖南、湖北、云南、贵州、河南、福建、辽宁7个省45个产区烟田土壤中的Cr、j、Cu、As、Tl和Pb 6种重金属元素含量;与对应烟叶中的6种
건립기HNO_3-H_2O_2-HF체계미파소해전처리양품,이용전감우합등리자체질보(ICP-MS)동시측정토양중적락(Cr)、얼(Ni)、동(Cu)、신(As)、사(Tl)、연(Pb)6충중금속원소함최적방법.해방법적상관계수재0.9996～1.000,상대표준편차재0.669%～3.02%,가표회수솔위94.68%～115.5%,창출한위2.004～312.4 ng/L,결과표명해방법만족중금속분석적요구.용건립기적방법측정료래자호남、호북、운남、귀주、하남、복건、료녕7개성45개산구연전토양중적Cr、Ni、Cu、As、Tl화Pb 6충중금속원소함량;여대응연협중적6충중금속함최상비,취류분석결과표명불동성구간토양중적중금속함량무명현차이,이연협중각차이명현.、사(Tl)、연(Pb)6충중금속원소함최적방법.해방법적상관계수재0.9996～1.000,상대표준편차재0.669%～3.02%,가표회수솔위94.68%～115.5%,창출한위2.004～312.4 ng/L,결과표명해방법만족중금속분석적요구.용건립기적방법측정료래자호남、호북、운남、귀주、하남、복건、료녕7개성45개산구연전토양중적Cr、j、Cu、As、Tl화Pb 6충중금속원소함량;여대응연협중적6충
A combination of HNO_3-H_2O_2-HF was used for microwave digestion.Method for simultaneous determination of Cr,Ni,Cu,As,Tl,and Pb in soil by inductively coupled plasma mass spectrometry(ICP-MS)Wag developed.The linear correlation factors were from 0.9996 to 1.000.The relative standard deviations of measurement were from 0.669% to 3.02%.The recoveries for spiking soil samples and the limits of detection were in the range of 94.68-115.5%and 2.004-312.4 ng/L,respectively.The results showed that the method met the requirements of trace element analysis.The content of Cr,Ni,Cu,As,Tl,and Pb in soil from 45 areas in 7 provinces including Hunan,Hubei,Yunnan,Guizhou,Henan,Fujian,and Liaoning were simultaneously determined by ICP-MS.The differentiation of 6 heavy metal contents in soil and tobacco from different provinces were studied.Cluster analysis report showed that the differentiation of 6 heavy metal contents was significant in tobacco but non-significant in soil.