硫氰酸汞分光光度法测定空气颗粒物中的氯化氢

DETERMINATION OF HYDROGEN CHLORIDE IN THE ATMOSPHERE PARTICULATE BY SPECTROPHOTOMETRIC METHOD OF Hg(SCN)_ 2

用硫氰酸汞分光光度法分别测定空气及空气颗粒物和空气中氯化氢的含量 ,利用相减法得出空气颗粒物中氯化氢的含量。线性范围为 0～ 1.0 0 μg/mL ,线性回归方程为A =0 .0 79 9c +0 .0 0 1 2 4 ,相关系数为 0 .999 5。该方法灵敏、简便 ,测定结果的相对标准偏差为 6 .8% (n =7) ,加标回收率为 98.1%～ 10 3.9%。

A sampling method of the atmosphere particulate and the determination of hydrogen chloride in the atmosphere particulate by the spectrophotometry of Hg(SCN) 2 were introduced. The content of hydrogen chloride in the atmosphere particulate was obtained by subtraction.The linear range is 0～ 1.00 μg/mL, the linear regression equation is A=0.0799c+0.00124, the correlation coefficient is 0.9995. This method is simple and sensitive. The RSD is 6.8%, the recovery is 98.1%～103.9%.