摘要
探讨了富含锡铜精矿中银的测定方法。矿样采用盐酸、硝酸、氢氟酸、高氯酸分解,赶尽氟和破坏有机物后,氢溴酸去除锡的干扰,在盐酸介质中,使用原子吸收光谱法测定银,经试验验证,该方法的检出限为0.00147%,测定范围为(10~1000)g/t,相对标准偏差为0.74%~0.87%,回收率在97.47%~102.56%之间,结果稳定可靠。
The determination methods of silver in tin rich copper concentrate is discussed.Ore sample was decomposed by hydrochloric acid,nitric acid,hydrofluoric acid and perchloric acid,fluorine was removed completely,organic matter was destroyed,then hydrobromic acid was used to remove the interference of tin,the determination on silver by atomic absorption spectrometry was carried out in hydrochloric acid medium,when verification experiment was done,we can get the following data,the detection limit of the method is 0.00147%,the determination range is(10~1000)g/t,the relative standard deviation is 0.74%~0.87%,the recovery rate is 97.47%~102.56%,the results are stable and reliable.
作者
余晓
贾劲捷
杨赟金
程婧娴
YU Xiao;JIA Jin-jie;YANG Yun-jin;CHENG Jing-xian(Kunming Metallurgical Research Institute Co.,Ltd.,Kunming,Yunnan 650031,China)
出处
《云南冶金》
2023年第2期108-112,共5页
Yunnan Metallurgy
关键词
原子吸收光谱法
铜精矿
锡
银
atomic absorption spectrometry
copper concentrate
tin
silver
