摘要本文建立了用硝酸硫酸预处理除去大量的铜，王水溶解，火焰原子吸收法测定粗铜中金的分析方法。
The gold in blister copper sample was pretreated with nitric acid - sulphuric acid to remove copper, digested with aqua , and determined by flame atom absorbance spectrometry.
对香椿亚硝酸盐的除去方法进行了讨论，选择香椿漂烫和添加抗坏血酸、柠檬酸、茶多酚可以有效去除亚硝酸盐的含量。
In order to weeding out nitrite in Chinese toon, choose water blanching and accretion with ascorbic acid, lemon acid and tea multi-hydroxybenzene.
在氨催化分解、 水煤气转化、除去水中硝酸盐的反应中使用钯膜也得到了令人满意的效果。
The satisfying results were also obtained in the reactions for catalytic decomposition of ammonia, water-gas shift and nitrate removal from wate…
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