摘要
The indigo carmine was reduced by using cheap,easily attainable and non poisonous reagents. Therefore, a special reagent was developed to measure the concentration of dissolved oxygen in water in situ . The molar absorption coefficient of the method is 1 35×10 4, and its dynamic linear range is 0-27 mg/L linearity coefficient of 0 997. The most oxidizing species, such as Cl 2, ClO -, Cu 2+ , Fe 3+ , V 5+ , and As(Ⅴ), do not interfere the determination. It takes no more than 1 min to analyze one sample. The method was applied to determining some practical samples and all the results obtained were satisfactory.
The indigo carmine was reduced by using cheap,easily attainable and non poisonous reagents. Therefore, a special reagent was developed to measure the concentration of dissolved oxygen in water in situ . The molar absorption coefficient of the method is 1 35×10 4, and its dynamic linear range is 0-27 mg/L linearity coefficient of 0 997. The most oxidizing species, such as Cl 2, ClO -, Cu 2+ , Fe 3+ , V 5+ , and As(Ⅴ), do not interfere the determination. It takes no more than 1 min to analyze one sample. The method was applied to determining some practical samples and all the results obtained were satisfactory.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第8期1501-1503,共3页
Chemical Journal of Chinese Universities
基金
吉林省科技发展项目 (批准号 :93 10 0 8)资助
