1. 阳1. 阳谷祥光铜业有限公司，山东聊城 252327； 2. Sonoma Academy，2500 Farmers Ln Santa Rosa 95404； 3. 青岛市第五十八中学，山东青岛 266000
Determination of mercury in copper concentrate by solid sampling and direct mercury analysis method
WAN Shuang1, MA Pingyi2, MA Chengcheng3, LI Xianhe1
1. Yanggu Xiangguang Copper Co., Ltd., Liaocheng 252327, China; 2. Sonoma Academy, 2500 Farmers Ln Santa Rosa 95404, U.S.A.; 3. Qingdao No.58 Middle School, Qingdao 266000, China
在波长253.7 nm 处测量汞的吸光度，采用标准曲线法计算汞量。方法的线性范围分别为0～1.00，0～100 μg/mL，
线性相关系数为0.999 9，检出限分别为0.10，0.04 ng/g。5 个汞含量不同的铜精矿样品测定结果的相对标准偏差为
2.14％～4.35％ (n=11)，样品加标回收率为92.00％～104.02％。采用该方法分别对2 个铜精矿样品和铜精矿国际标
Abstract：The direct determination method of mercury content in copper concentrate by solid sample introduction was
established. After the copper concentrate sample was dried at 300℃ and thermally decomposed at 750℃ in the decomposition
furnace of the mercury meter, mercury was catalytically decomposed into mercury atoms, which were homogenized into gold
amalgam at 850℃. Mercury vapor was introduced into a single wavelength optical absorption cell by oxygen flow, and the
absorbance of mercury was measured at 253.7 nm. The mercury content was calculated by standard curve method. The linear
ranges of the method were 0-1.0, 0-100 μg/mL, respectively, the linear correlation coefficients were all 0.999 9, and
the detection limits were 0.10, 0.04 ng/g, respectively. The relative standard deviations of the determination results of five
copper concentrate samples with different mercury contents were 2.14%-4.35%(n=11), and the recovery rate of the samples
were 92.00%-104.02%. The method was used to determine two copper concentrate samples and the international standard
substance of copper concentrate, respectively. The determination results were basically consistent with the determination
results of the standard analysis method and the standard value of the standard substance. The method is simple, rapid and
accurate, it can be used as a standard method.
Keywords：copper concentrate; solid sampling and direct mercury analysis method; mercury
万双，马平一，马成骋，等. 固体进样直接测定法测定铜精矿中汞[J]. 化学分析计量，2020，29(2)：40-43.
WAN S，MA P Y，MA C C，et al. Determination of mercury in copper concentrate by solid sampling and direct mercury analysis method[J]. Chemical analysis and meterage，2020，29(2)：40-43.