Yang Pengyuan
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 | 2014
Xu Guobin; Nie Lei; Qing Jiang; Yang Pengyuan
Archive | 2015
Ji Ji; Li Jiajing; Liu Baohong; Yang Pengyuan
Archive | 2014
Lu Haojie; Jiao Jing; Zhang Ying; Cai Yan; Yang Pengyuan
Archive | 2014
Shen Huali; Lin Ling; Ding Ying; Yang Pengyuan
Archive | 2013
Wei Liming; Xu Guobin; Zhang Wei; Lu Haojie; Yang Pengyuan
Archive | 2013
Lu Haojie; Liu Liting; Zhang Ying; Yang Pengyuan
Archive | 2009
Liu Baohong; Liang Qiao; Lion Niels; Wan Jingjing; Prudent Michel; Roussel Christophe; Yang Pengyuan; Girault Hubert Hugues
Archive | 1997
Huang Benli; Yang Pengyuan; Gong Zhenbin
Archive | 2017
Ji Ji; Liu Baohong; Yang Pengyuan