Gas phase molecular absorption spectrometer test items
The gas phase molecular absorption spectrometry comes from the standard method of the national authoritative department. The standard number is as follows:
Ammonia
nitrogen(NH3-N) HJ/T 195-2005
Kjeldahl nitrogen(TKN) HJ/T 196-2005
Nitrite nitrogen(NO2-N) HJ/T 197-2005
Nitrate nitrogen(NO3-N) HJ/T 198-2005
Total nitrogen(TN) HJ/T 199-2005
Sulfide(S2-) HJ/T 200-2005