| 氢化物发生-原子荧光光谱法测定岩石中砷和锑 |
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| 引用本文： | 别克赛力克·库尔买提,阿比提·海力力.氢化物发生-原子荧光光谱法测定岩石中砷和锑[J].理化检验(化学分册),2011(6). |
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| 作者姓名： | 别克赛力克·库尔买提 阿比提·海力力 |
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| 作者单位： | 新疆伊犁州产品质量检验所;新疆化学工业学校应用化学系; |
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| 摘 要： | 应用氢化物发生-原子荧光光谱法测定了岩石中砷和锑的含量。样品预先粉碎至通过孔径为0.25～0.42mm的细筛,称取此粉碎的样品0.1000～0.3000g,先于盐酸-硝酸(3+1)混合酸8mL中浸泡30 min,然后放入沸水浴中消解2 h,将溶液及不溶物一起移入50 mL容量瓶中,加水定容。移取上清液5.00mL置于10mL容量瓶中,加入100g·L~(-1)硫脲及抗坏血酸混合溶液2.5mL,用盐酸(5+95)溶液定容,分取此溶液1.0mL进样按选定的仪器条件进行分析。用20g·L~(-1)硼氢化钾溶液作为产生砷及锑的氢化物的还原剂,砷(Ⅲ)及锑(Ⅲ)的质量浓度依次在0.50～60μg·L~(-1)和0.50～80μg·L~(-1)范围内与其相应的荧光强度呈线性关系。应用此方法测定了两种岩石标准物质(GBW 07106及GBW 07108)中的砷及锑量,其测定值与认定值一致,相对标准偏差(n=5)均小于3.5%。
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| 关 键 词： | 氢化物发生-原子荧光光谱法 砷 锑 岩石 |
HG-AFS Determination of Arsenic and Antimony in Rocks |
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| BIEKESAILIKE Kuermaiti,ABITI Hailili.HG-AFS Determination of Arsenic and Antimony in Rocks[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(6). |
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| Authors: | BIEKESAILIKE Kuermaiti ABITI Hailili |
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| Institution: | BIEKESAILIKE Kuermaiti~1,ABITI Hailili~2 (1.Yili Pre fectural Institute of Inspection of Product Quality,Yining 835000,China,2.Dept.of Applied Chemistry,Xinjiang College of Chemical Industry,Urumqi 830021,China) |
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| Abstract: | AFS with hydride generation was applied to the determination of arsenic and antimony in rocks. Rock sample was crushed to pass sieves with bores of 0.25 mm to 0.42 mm.0.100 0 to 0.300 0 g of the crushed sample were soaked in 8 mL of an acid mixture of cone.HCl and HNO_3(3+1)for 30 min and then digested in boiling water bath for 2 h.The mixture was transferred to a 50 mL volumetric flask and diluted to mark with water. 5.00 mL of the supernatant were taken and transferred to a 10 mL volumetric flask,2.5 mL o... |
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| Keywords: | HG-AFS Arsenic Antimony Rocks |
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