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[Study on spectrophotometric determination of trace nitrite with brilliant cresol blue].

Chuan Dong, Fu Ming

Abstract

A new spectrophotometric method for the determination of trace nitrite was studied. The method is based on the diazo-reaction of brilliant cresol blue with nitrite. The linear range for the determination is 0.5-12 microg NO2(-)/25 mL. The detection limit is 0.5 microg NO2(-)/25 mL. The method has been used for the determination of trace nitrite in water. The mechanism of the reaction was discussed.

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Available abstract

Key concepts: Nitrite, Diazo, Detection limit, Chemistry, Linear range, Spectrophotometry, TRACE (psycholinguistics), Trace Amounts