Yuan Dongxing
Xiamen University
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Analytica Chimica Acta | 1991
Yuan Dongxing; Wang Xiaoru; Yang Pengyuan; Huang Benli
Abstract A flow-injection system was developed in which alloy metal samples are electrolytically dissolved and the dissolved samples are analysed by flame atomic absorption spectrometry (FAAS). The effects of electrolyte composition and electrolysis parameters on the dissolution of the sample were studied. The method was used for the determination of copper in aluminium alloys. Electrolyte solutions consisting of 0.2–1.0 M nitric acid are better than other electrolytes tested with regard to both alloy sample dissolution and determination of copper by FAAS. The peak height increases linearly with the electrolysis time or current within a certain range. The detection limit depends on the sensitivity of the detector used, and can be improved by increasing the electrolysis time or current. Generally, aluminium alloys containing 0.5–10% copper can give suitable signals for FAAS determination. The reproducibility of electrolysis and determination is about 4% for the same sampling points and 5% for different sampling points on the alloy sample.
Archive | 2015
Li Quanlong; Yuan Dongxing; Zhang Ling; Lu Bingyan
Archive | 2014
Huang Yongming; Su Haitao; Yuan Dongxing; Li Quanlong
Marine Environmental Science | 2008
Yuan Dongxing
Archive | 2017
Ma Jian; Chen Zhaoying; Liao Kewei; Lin Kunning; Yuan Dongxing
Archive | 2017
Zhu Yong; Chen Jianfang; Yuan Dongxing; Su Haitao; Xu Jin; Shi Xiaolai
Archive | 2017
Shangguan Qipei; Ma Jian; Lin Kunning; Yuan Dongxing
Archive | 2017
Zhu Yong; Chen Jianfang; Yuan Dongxing; Su Haitao; Xu Jin; Shi Xiaolai
Archive | 2017
Li Quanlong; Gong Jing; Yuan Dongxing
Archive | 2017
Zhu Yong; Chen Jianfang; Yuan Dongxing; Shi Xiaolai