| 火焰原子吸收分光光度法测定三聚磷酸钠中钙镁含量 |
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| 引用本文： | 程薇,李广超,季剑波.火焰原子吸收分光光度法测定三聚磷酸钠中钙镁含量[J].陶瓷科学与艺术,2001(3). |
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| 作者姓名： | 程薇 李广超 季剑波 |
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| 作者单位： | 徐州化工学校!江苏徐州221006 |
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| 摘 要： | 在硝酸介质中 ,利用LaCl3 作释放剂 ,CsCl作消电离剂 ,采用空气 -乙炔火焰 ,原子吸收光度法测定工业三聚磷酸钠中钙镁的含量 ,获得了满意的结果。标准加入法的相对标准偏差为 :1.45 % (Ca)和 2 .0 3% (Mg) ,加标回收率为 :96 .7% (Mg)和 10 4.2 % (Ca)。该法可直接用于样品中微量钙镁的测定
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| 关 键 词： | 钙 镁 火焰原子吸收光度法 |
FAAS determination of Calcium and Magnesium in industrial sodium phosphate tripolymer |
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| CHENG Wei,LI Guang chao,JI Jian bo Xuzhou Chemical Industrial College,Xuzhou ,China.FAAS determination of Calcium and Magnesium in industrial sodium phosphate tripolymer[J].Ceramics Science & Art,2001(3). |
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| Authors: | CHENG Wei LI Guang chao JI Jian bo Xuzhou Chemical Industrial College Xuzhou China |
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| Affiliation: | CHENG Wei,LI Guang chao,JI Jian bo Xuzhou Chemical Industrial College,Xuzhou 221006,China |
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| Abstract: | A method for FAAS determination of Ca and Mg in industrial sodium phosphate tripolymer was proposed. The interferences of (PO 4) 3- are compensated by the addition of LaCl 3 .The recoveries are 96.7% (for Mg ) and 104.2% (for Ca ) and the relative standard deviation are 1.45 % (for Ca) and 2.03% (for Mg ). The results are obtained by the standard addition method. The proposed method is proved to be rapid ,accurate and convenient. |
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| Keywords: | Ca Mg flame atomic absorption spectrometry(FAAS) |
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