一、温度高能引起铜络合物消光值降低。我们用不同温度的比色皿(2公分)装同一铜盐络合物测定消光值如下: 比色皿温度装入络合物液温消光值 37℃ 35℃ 30.5E 32℃ 32.5℃ 32E 按部标准规定:吸取样品液Ⅱ10毫升,加入0.1 N盐酸液70毫升,而游离硫化物是吸取50毫升样品液Ⅱ加入事先中和0.2N盐酸30毫 First, the high temperature causes the copper complex extinction reduction. We use the cuvettes of different temperatures (2 cm) with the same copper salt complex to determine the extinction values ​​as follows: Cuvettes Temperature Loading complex Temperature Extinction 37 ° C 35 ° C 30.5E 32 ° C 32.5 ° C 32E Standard Requirements: Pipette sample solution II 10 ml, add 0.1 N hydrochloric acid solution 70 ml, and free sulfide is draw 50 ml of sample solution II added to the prior neutralization 0.2N hydrochloric acid 30 milliliters