FAAS Determination of Heavy Metal Elements in Fly-Coal Ash with Microwave Assisted Sample Digstion
摘 要
提出了火焰原子吸收光谱法测定粉煤灰中微量铅、铬,镍、铜、锌和锰含量的方法.采用硝酸和氢氟酸(体积比8比1)混合酸对试样进行消解,再加入硼酸溶解铝、钙、镁所生成的难溶氟化物.用6种元素的标准溶液制作了各自的标准曲线,所得线性回归方程的相关系数在0.999 1~1.000 0之间.在粉煤灰试样的基础上,加入一定量6种元素的标准溶液作回收试验,得到回收率在94.9%~102.4%之间.
Abstract
Microamounts of Pb,Cr,Ni,Cu,Zn and Mn in fly-coal ash were determined by FAAS.The sample was digested with a mixture of HNO3 and HF (8+1).Boric acid was added to dissolve insoluble fluorides of Al,Ca and Mg.Standard curves of the 6 elements were prepared by using the respective standard solutions,and linear regression equations with correlation coefficients from 0.999 1 to 1.000 0 were obtained.Test for recovery was made by standard addition method,and values of recovery found were in the range of 94.9%-102.4%.
中图分类号 O657.31
所属栏目 工作简报
基金项目 毕节学院科学研究基金(No.20082005)资助项目
收稿日期 2009/7/5
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备注陈燕芹(1976-),女,山东济南人,硕士,讲师,主要从事分析化学的教学及科研工作.
引用该论文: CHEN Yan-qin,LIU Hong. FAAS Determination of Heavy Metal Elements in Fly-Coal Ash with Microwave Assisted Sample Digstion[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2010, 46(9): 1006~1007
陈燕芹,刘红. 微波消解试样-火焰原子吸收光谱法测定粉煤灰中重金属元素[J]. 理化检验-化学分册, 2010, 46(9): 1006~1007
被引情况:
【1】杨俊,陈雪莲,刘文欣,赵振纲, "微波消解样品-火焰原子吸收光谱法测定焦炭灰中钾、钠含量",理化检验-化学分册 49, 529-530(2013)
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