DETERMINATION OF SULFITE IN SUGAR AND SULFUR-DIOXIDE IN AIR BY CHEMILUMINESCENCE USING THE RU(BIPY)3(2-KBRO3 SYSTEM())

Authors
WU FW HE ZK MENG H ZENG Y
Citation
Fw. Wu et al., DETERMINATION OF SULFITE IN SUGAR AND SULFUR-DIOXIDE IN AIR BY CHEMILUMINESCENCE USING THE RU(BIPY)3(2-KBRO3 SYSTEM()), Analyst (London. 1877. Print), 123(10), 1998, pp. 2109-2112
Citations number
42
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst (London. 1877. Print) → ACNP
ISSN journal
00032654
Volume
123
Issue
10
Year of publication
1998
Pages
2109 - 2112
Database
ISI
SICI code
0003-2654(1998)123:10<2109:DOSISA>2.0.ZU;2-M
Abstract
A chemiluminescence (CL) detection method for the determination of sul fite using the reaction of Ru(bipy)(3)(2+) (bipy = 2,2'-bipyridyl)-SO3 2--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). Th e limit of detection is 3.8 x 10(-9) mol l(-1) and the relative standa rd deviation is 4.6% for 5 x 10(-5) mol l(-1) sulfite solution with ni ne repeated measurements. This method was successfully applied to the determination of sulfite in sugar and sulfur dioxide in air by using t riethanolamine as the absorbent material.