A simple, sensitive and selective spectrophotometric method for the determination of trace nitrite based on the color fading of methyl violet(MV) by nitrite has been investigated.

• 研究了在稀盐酸介质中亚硝酸根对甲基紫的退色反应，建立了一个简单、灵敏、选择性高的亚硝酸根测定方法。