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dc.contributor.author黄霄红
dc.contributor.author卢豪良
dc.date.accessioned2016-05-17T03:00:55Z
dc.date.available2016-05-17T03:00:55Z
dc.date.issued2013-06-15
dc.identifier.citation亚热带资源与环境学报,2013,8:39-44
dc.identifier.issn1673-7105
dc.identifier.otherFJDL201302007
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/108292
dc.description.abstract建立了以纳米二氧化钛(TIO2)作为吸附剂填充微柱,电感耦合等离子体质谱(ICP-MS)法测试Cu2+,Cd2+,Pb2+和nI2+离子的分析方法.考察了不同PH值、洗脱液浓度、样品流速、体积和外源干扰离子的影响,实验结果表明在PH值8~10范围内待测离子可被TIO2定量吸附,2.0 MOl l-1HnO3可将吸附在微柱上的待测物完全洗脱,优化条件下本方法对溶液中Cu2+,Cd2+,Pb2+和nI2+离子检出限分别为:0.02,0.01,0.01,0.02μg l-1,相对标准偏差小于2%(n=7),富集系数50倍.对水系沉积物标准物质(gbW 07310)的测定值与标准值相一致,方法具有简便、快速,灵敏度高,重现性好的优点,可满足河口水体与沉积物样品中痕量金属元素定量分析的要求.
dc.description.abstractA new micro-column packed with nanometer TiO2 as sorbent has been developed for quantitative separation,preconcentration and determination of Cd(Ⅱ),Cu(Ⅱ),Pb(Ⅱ) and Ni(Ⅱ) ions in sediment and seawater samples by inductively coupled plasma mass spectrometer(ICP-MS).Effects of pH,concentration and volume of elution solution,and the flowing rate,volume and interfering ions of the samples on recovery of the ions were investigated.Detection limit(3σ) for Cu2+,Cd2+,Pb2+ and Ni2+ was 0.02,0.01,0.01 and 0.02 μg L-1,respectively.A preconcentration factor,50,and low relative standard deviation,≤2%(n=7) values were obtained.Further,the method was verified by analyzing certified reference materials(GBW 07310) and spiked seawater samples,showing its effectiveness in the determination of heavy metal ions in estuary environment.
dc.description.sponsorship国家自然科学基金(3100244)
dc.language.isozh_CN
dc.subject纳米二氧化钛
dc.subject电感耦合等离子体-质谱
dc.subject固相萃取
dc.subject重金属
dc.subjectnanometer titanium oxide
dc.subjectinductively coupled plasma mass spectrometry
dc.subjectsolid phase extraction
dc.subjectheavy metal
dc.title纳米TiO_2分离富集ICP-MS法测定河口环境样品中重金属研究
dc.title.alternativeHeavy Metal Determination in Estuary Environmental Samples: Using Nanometer TiO_2 as Sorbent and Based on Inductively Coupled Plasma Mass Spectrometer
dc.typeArticle


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