Other profitable features
such as analytical throughput of 40 determination per hour; relative standard deviation of 1%; linear response range between 50 and 300 g l−1
for nitrite and nitrate, 0.5–6.0 mg l−1 iron(II) and iron(III); low reagent consumption 75g for nitrate/nitrite and 0.6 mg for iron(II)/iron(III) per
determination; and 2.4 ml waste generation per determination were also achieved