MONITOR PROCESS PHOTOMETRY
No. 00031-1R/N
NITRITE : Griess mono-reagent Method Range: 0 – 2 mg/l (N- NO2) |
The automated procedure for the determination of Nitrite is an adaptation of the diazotization method of “Standard Methods”. Under acidic conditions nitrite ion reacts with sulfamic acid to yield a diazo compound which couples with N-1-naphthylene-diamine to form a soluble dye which is measured colorimetrically. The color intensity is measured at 520 nm |
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