环境科学导刊
環境科學導刊
배경과학도간
ENVIRONMENTAL SCIENCE SURVEY
2014年
1期
94-95
,共2页
铋%土壤%测定%微波消解%石墨炉原子吸收光谱法
鉍%土壤%測定%微波消解%石墨爐原子吸收光譜法
필%토양%측정%미파소해%석묵로원자흡수광보법
bismuth%soil%determination%microwave digestion%graphite furnace atomic absorption spectrometry
建立了微波消解土壤、石墨炉原子吸收法测定土壤中痕量铋的方法。采用磷酸二氢铵作为基体改进剂，热解涂层石墨管，塞曼扣背景。此方法对测定土壤中铋的灵敏度、准确度都有很大的提高。方法的最低检出浓度为0.02μg/g，加标回收率为94.5％～103.8％，能够满足环境监测分析的要求。
建立瞭微波消解土壤、石墨爐原子吸收法測定土壤中痕量鉍的方法。採用燐痠二氫銨作為基體改進劑，熱解塗層石墨管，塞曼釦揹景。此方法對測定土壤中鉍的靈敏度、準確度都有很大的提高。方法的最低檢齣濃度為0.02μg/g，加標迴收率為94.5％～103.8％，能夠滿足環境鑑測分析的要求。
건립료미파소해토양、석묵로원자흡수법측정토양중흔량필적방법。채용린산이경안작위기체개진제，열해도층석묵관，새만구배경。차방법대측정토양중필적령민도、준학도도유흔대적제고。방법적최저검출농도위0.02μg/g，가표회수솔위94.5％～103.8％，능구만족배경감측분석적요구。
The method for determination of trace Bismuth in soil by microwave digestion soil and graphite furnace a-tomic absorption spectrometry was established.The two ammonium hydrogen phosphate as matrix modifier,pyrolyt-ic coated graphite tube and Zeeman background correction were used.The sensitivity and accuracy of this method in the determination of bismuth were greatly improved.The minimum detectable concentration was 0.02 μg/g,and the recovery was 94.5% ~103.8%.It can meet the requirements of environmental monitoring and analysis.
