CAJ | 학술논문

建立了土壤中铅、砷、铬、铜和锌含量的连续快速测定方法.土壤样品经微波消解,用同一份消解液,分别连续测定土壤中的铅、砷、铬、铜和锌含量,铬、铜和锌采用火焰原子吸收光谱法,铅和砷采用氢化物发生-原子荧光光谱法.采用本方法,对环境土壤标准样品ESS-1黑钙土(GSBZ 50011)和ESS-3红壤(GSBZ 50013)进行多次测定,检测结果与标样的推荐值吻合.经统计计算,回收率为95.2%-103.6%,精密度RSD均小于7%.本法操作简单快速,光谱测定结果已成功地用于无公害水果和蔬菜生产基地的土壤环境质量评价.
건립료토양중연、신、락、동화자함량적련속쾌속측정방법.토양양품경미파소해,용동일빈소해액,분별련속측정토양중적연、신、락、동화자함량,락、동화자채용화염원자흡수광보법,연화신채용경화물발생-원자형광광보법.채용본방법,대배경토양표준양품ESS-1흑개토(GSBZ 50011)화ESS-3홍양(GSBZ 50013)진행다차측정,검측결과여표양적추천치문합.경통계계산,회수솔위95.2%-103.6%,정밀도RSD균소우7%.본법조작간단쾌속,광보측정결과이성공지용우무공해수과화소채생산기지적토양배경질량평개.
A method for the determination of lead,arsenic,chromium,copper and zinc in soil is described.Sample is digested by microwave.Lead and arsenic were determined by hydride generationatomic fluorescence spectrometry.Chromium,copper and zinc were measured by flame atomic absorption spectrometry.Standard reference soiIs(GSBZ 50011,GSBZ 50013)were measured by this method.The results are in agreement with certified value.The recovery is in range of 95.2%-103.6%.The RSD is less than 7%.The method is simple and rapid with satisfactory results.This method has been applied successfully for environmental quality evaluation for soil.