摘要：
研究水中亚硫酸盐的检测方法，确定最佳检测条件。结果表明：最佳检测方法为酸化—水浴—分光光度法；最佳检测条件为：最大吸收波长618 nm、反应介质为pH=6的醋酸-醋酸钠缓冲溶液（体积为1 mL）、孔雀石绿体积为1 mL、反应温度5~30 ℃、反应时间为40 min；适用范围：0~5 mg/L（以SO32-计），最低检出限为0.1 mg/L。
关键词:
亚硫酸盐,
孔雀石绿,
分光光度法
Abstract:
The determination process of sulfites content in water has been studied and its optimal conditions have been ascertained. The results show that the determination process is acidification-water bathing-malachite green spectrophotometry, and the optimal conditions are as follows：the absorptive wavelength is 618 nm, reaction medium acetic acid-sodium acetate buffer solution whose pH is 6 and volume is 1 mL, volume of malachite green 1 mL, reaction temperature 5-30 ℃, and reaction time 40 min. Its sphere of application is 0-5 mg/L and the minimum detection limit 0.1 mg/L.
Key words:
sulfites,
wastewater,
malachite green,
spectrophotometry
中图分类号:
刘玲, 彭静雪, 齐敏, 商晓燕. 酸化—水浴—分光光度法测定水中亚硫酸盐的研究[J]. 工业水处理, 2014, 34(1): 71-73.
Liu Ling, Peng Jingxue, Qi Min, Shang Xiaoyan. Study on the determination of sulfite content in water by acidification-water bathing-malachite green spectrophotometry[J]. INDUSTRIAL WATER TREATMENT, 2014, 34(1): 71-73.