光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2010年
3期
825-828
,共4页
铅锌矿%土壤重金属%能最色散X荧光分析(EDXRF)
鉛鋅礦%土壤重金屬%能最色散X熒光分析(EDXRF)
연자광%토양중금속%능최색산X형광분석(EDXRF)
Lead-zinc mine%Soil heavy metals%Energy-dispersive X-ray fluorescence (EDXRF)
铅锌矿区及附近土壤由于受铅锌矿开采和选冶影响,受到普遍污染,Pb和Zn含量高,浓度范围宽.由于谱线重叠,高含最Pb严重干扰As的测定.同时高含量Pb和Zn的土壤标样缺乏.针对以上3个问题,该工作研究探讨了有效解决途径,建立了铅锌矿区土壤重金属Pb,As,Cd,Cu和Zn等的EDXRF分析方法.所建方法的可测量浓度,Pb为4.4～23 600 μg·g~(-1),Zn为7.0～39 400 μg·g~(-1),方法检出限分别为1.1和0.9 μg·g~(-1),平均相对误差分别为7.6%和6.2%.
鉛鋅礦區及附近土壤由于受鉛鋅礦開採和選冶影響,受到普遍汙染,Pb和Zn含量高,濃度範圍寬.由于譜線重疊,高含最Pb嚴重榦擾As的測定.同時高含量Pb和Zn的土壤標樣缺乏.針對以上3箇問題,該工作研究探討瞭有效解決途徑,建立瞭鉛鋅礦區土壤重金屬Pb,As,Cd,Cu和Zn等的EDXRF分析方法.所建方法的可測量濃度,Pb為4.4～23 600 μg·g~(-1),Zn為7.0～39 400 μg·g~(-1),方法檢齣限分彆為1.1和0.9 μg·g~(-1),平均相對誤差分彆為7.6%和6.2%.
연자광구급부근토양유우수연자광개채화선야영향,수도보편오염,Pb화Zn함량고,농도범위관.유우보선중첩,고함최Pb엄중간우As적측정.동시고함량Pb화Zn적토양표양결핍.침대이상3개문제,해공작연구탐토료유효해결도경,건립료연자광구토양중금속Pb,As,Cd,Cu화Zn등적EDXRF분석방법.소건방법적가측량농도,Pb위4.4～23 600 μg·g~(-1),Zn위7.0～39 400 μg·g~(-1),방법검출한분별위1.1화0.9 μg·g~(-1),평균상대오차분별위7.6%화6.2%.
Due to the impact of lead-zinc mining and smelting,the soil of lead-zinc orefield and nearby areas has been widely polluted.Moreover,the concentration of lead and zinc was high,and their concentration range was wide.Furthermore,the impact of overlapping interference between low concentration As and high Pb was serious,and the lack of soil standards of lead and zinc was also a problem.According to these problems,the present work studicd an effective solution to setting up the EDXRF analysis of Pb,As,Cd,Cu and Zn of soil on lead-zinc orefield.The measurable concentration of Pb was 4.4-23 600 μg·g~(-1),and that of Zn was 7.0-39 400 μg·g~(-1).The detection limit was 1.1 μg·g~(-1) for Pb and 0.9 μg·g~(-1) for Zn.The average relative error was 7.6% for Pb and 6.2% for Zn.
