[Study of the sensitizing effects of surfactants on the determination of aluminum by air-acetylene flame atomic absorption spectrometry].
The sensitizing effects of ten surfactants, such as cetyl trimethyl ammonium bromide (CTMAB) and cetyl pyridinium chloride (CPC), on the determination of aluminum were studied. The results showed that the cationic surfactants in the experiment were good sensitizers for the determination of aluminum, and the sensitization time was about 3.0. On the other hand, anionic surfactants had inhibition action, while particular surfactants had no action. With the sensitizing agent of CTMAB, the operating parameters of the spectrometer and the effects of CTMAB, solution medium and interfering elements in aluminum-nickel alloy sample were studied. The content of aluminum in aluminum-nickel alloy sample was determined by air-acetylene flame atomic absorption spectrometry, the linear range of aluminum of this method was 0.10-2.0 g x L(-1), the relative standard deviation was 2.6%, and the recoveries were in the range of 97%-103%.
School of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou 221116, China. jusheng9999@xznu.edu.cn
Ju-Sheng
JS
Lu
Jiu-Ying
JY
Tian
Bai-Xiang
BX
Du
Xiao-Qing
XQ
Miao