火焰原子吸收光谱法测定煤及煤基活性炭中微量金属元素
FAAS Determination of Microamounts of Metal Elements in Coal and Coal-based Activated Carbon
摘 要
提出了火焰原子吸收光谱法测定煤及煤基活性炭样品中微量元素铜、锌、锰、铁、钙、镁、锡的方法,煤及煤基活性炭样品研磨成粉末状后,按GB 212-1991标准方法规定的灰化条件将样品灰化,灰化样品用高氯酸、氢氟酸溶解后,再经盐酸(1+1)溶液溶解,过滤,按仪器工作条件测定.按标准加入法做回收试验,测得回收率在96.7%~100.9%之间.对7元素分别做精密度试验,求得相对标准偏差(n=6)均小于1%.
煤基活性炭
原料煤
微量元素
FAAS
Coal-based activated carbon
Coal
Elements of micro amounts
Abstract
A method for determination of 7 metal elements (i.e.,copper,zinc,manganese,iron,calcium,magnesium and tin) of micro amounts in coal and coal-based activated carbon by FAAS was proposed.The sample of coal or coal-based activated carbon was pulverized and ashed as described in GB/T 212-1991.The ashed sample was treated with HClO4 and HF,evaporated to near dryness and then dissolved with HCl(1+1).The above mentioned metal elements in hydrochloric acid solution were determined by FAAS according to the working conditions of instrument as described.Tests for precision and recovery were performed,giving values of RSD′s (n=6) for all the 7 elements less than 1%,and values of recovery in the range of 96.7% to 100.9%.
中图分类号 O657.31
所属栏目 工作简报
基金项目
收稿日期 2007/9/13
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备注王建程(1954-),男,宁厦银川人,高级工程师,从事化学化工、煤质冶金、能源等方面的检验检测与产品质量监督管理工作.
引用该论文: WANG Jian-cheng. FAAS Determination of Microamounts of Metal Elements in Coal and Coal-based Activated Carbon[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(1): 96～97
王建程. 火焰原子吸收光谱法测定煤及煤基活性炭中微量金属元素[J]. 理化检验－化学分册, 2009, 45(1): 96～97
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参考文献
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