NANOCOLOR® Nitrite Photometric determination of nitrite Photometric determination with sulphanilic acid and 1-naphthylamine. In acidic solution sulphanilic acid is diazotised with nitrite. Read More »
ชุดทดสอบไนไตรท์ Standard Test (0.01 – 0.30 mg/l NO2-N / 0.10 – 1.00 mg/l NO2-)
