| 标准加入原子吸收法测定碳化钨中微量 Fe,Mg,Ca,K和Na的含量 |
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| 引用本文： | 张秀香,梁涛,王旭珍,张曰秋,于丽.标准加入原子吸收法测定碳化钨中微量 Fe,Mg,Ca,K和Na的含量[J].鲁东大学学报,2001,17(4):266-269. |
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| 作者姓名： | 张秀香 梁涛 王旭珍 张曰秋 于丽 |
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| 作者单位： | 张秀香（烟台师范学院化学系,山东,烟台,264025）
梁涛（烟台师范学院化学系,山东,烟台,264025）
王旭珍（烟台师范学院化学系,山东,烟台,264025）
张曰秋（烟台农业学校,山东,烟台,264002）
于丽（烟台农业学校,山东,烟台,264002） |
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| 摘 要： | 用H3PO4-HNO3-HCl溶解试样,在几个相同量的试液中,分别加入浓度依次递增的5种元素的标准溶液,再加入释放剂LaCl3溶液和消电离剂CsCl2溶液,用空气-乙炔火焰原子吸收法测定Fe,Mg,Ca,K和Na的含量.建立了优化的仪器测定条件,并对可能存在的元素进行了干扰实验.该方法的回收率为98.3%-103.2%,相对标准偏差为1.8%-3.5%.
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| 关 键 词： | 原子吸收法 碳化钨 Fe Mg Ca K Na 含量 |
| 文章编号： | 1004-4930(2001)04-0266-04 |
| 修稿时间： | 2001年6月21日 |
Determination of trace Fe, Mg, Ca, K, Na in tungsten carbide by standard addition FAAS |
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| ZHANG Xiu-xiang ,LIANG Tao ,WANG Xu-zhen ,ZHANG Yue-qiu ,YU Li.Determination of trace Fe, Mg, Ca, K, Na in tungsten carbide by standard addition FAAS[J].Ludong University Journal (Natural Science Edition),2001,17(4):266-269. |
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| Authors: | ZHANG Xiu-xiang LIANG Tao WANG Xu-zhen ZHANG Yue-qiu YU Li |
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| Institution: | ZHANG Xiu-xiang 1,LIANG Tao 1,WANG Xu-zhen 1,ZHANG Yue-qiu 2,YU Li 2 |
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| Abstract: | After dissolved by H 3PO 4-HNO 3-HCl,several same samples were added into the five element standard solutions increased by concentration degrees respectively,furthermore LaCl 3 used as release agent and CsCl as eliminating ionization agent were added into the system,then the contents of iron,magnesium,calcium,potassium and sodium were determined by air-acetylene fire atomic absorption spectrometry(FAAS).The optimum determination conditions have been established.The interference tests for other elements that probably exist have been conducted.The rate of recovery is 98.3%-103.2%,the relative standard deviation is 1.8%-3.5%. |
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| Keywords: | fire atomic absorption spectrometry tungsten carbide iron magnesium calcium potassium sodium content |
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