Determination of chlorine in air with the pyridine-pyrazolone reagent |
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| Authors: | Saburo Kanno Tomoaki Okitsu Yoshifumi Hirose |
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| Institution: | 1. Faculty of Pharmaceutical Sciences, Josai University, 1-1, Keyakidai, Sakado, Saitama Prefecture, Japan;2. Saitama Prefectural Institute of Public Health, 639-1, Kamiokubo, Urawa, Saitama Prefecture, Japan |
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| Abstract: | An improved method for the determination of chlorine in air is described. The principle of this method is based on the absorption of chlorine in p-toluenesulfonamide aqueous solution, followed by color development with a pyridine-pyrazolone reagent. Both the chlorine absorbed in the solution and the color developed with the reagent were stable. Positive interference by nitrogen dioxide was not observed. |
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