Determination of sulfite in sugar and sulfur dioxide in air by chemiluminescence using the Ru(bipy)3(2+)-KBrO3 system

作者：Wu FW; He ZK^*; Meng H; Zeng Y

来源：Analyst, 1998, 123(10): 2109-2112.

DOI：10.1039/a803618g

A chemiluminescence (CL) detection method for the determination of sulfite using the reaction of Ru(bipy)(3)(2+) (bipy = 2,2'-bipyridyl)-SO32--KBrO3 is described. The concentration of sulfite is proportional to the CL intensity in the range 2.5 x 10(-8)-9.5 x 10(-5) mol l(-1). The limit of detection is 3.8 x 10(-9) mol l(-1) and the relative standard deviation is 4.6% for 5 x 10(-5) mol l(-1) sulfite solution with nine repeated measurements. This method was successfully applied to the determination of sulfite in sugar and sulfur dioxide in air by using triethanolamine as the absorbent material.

• 出版日期1998-10
• 单位武汉大学