摘要
用冷原子吸收法测定纯铝中的汞量,研究了测定介质及其浓度、重铬酸钾和氯化亚锡的用量、共存元素、溶样方法及用酸量、放置时间等因素对测定汞的影响.该法对汞的测定范围为0.00001%~0.010%,加标回收率在95.0%~103.5%之间,相对标准偏差小于5%,能满足测定的要求.
Mercury in aluminum was determinated by cold atomic absorption spectrometry.The effects of determination medium and concentrations,K_2Cr_2O_7 and SnCl_2 consumption,coexisting elements,method for dissolving sample and its acid consumption and standing time on determination of mercury were studied.The method is possible to use with a range between 0.00001%-0.010%.The results obtained under optimum conditions show that the addition recovery is between 95.0%-103.5% and the relative standard deviation is less t...
出处
《材料研究与应用》
CAS
2006年第4期284-288,共5页
Materials Research and Application
关键词
冷原子吸收光谱法
铝
汞
cold atomic absorption spectrometry
aluminum
mercury
