| abstract |
The utility model belongs to environmental analysis detects the field, discloses a dissolubility organic matter and nitrate nitrogen water quality analyzer. The analyzer comprises an optical detection assembly, the optical detection assembly comprises a cuvette, a first deep ultraviolet LED with the peak wavelength of 275 +/-10 nm, a second deep ultraviolet LED with the peak wavelength of 235 +/-10 nm, a first photodiode and a second photodiode, and the centers of light sources of the first deep ultraviolet LED and the second deep ultraviolet LED are opposite to the centers of the first photodiode and the second photodiode respectively. The utility model disclosesAccording to Abs 275±10 Predicting the COD index and the total organic carbon index of the dissolved organic matter according to Abs 235±10 And Abs 275±10 The nitrate nitrogen concentration is calculated, the interference of organic matters is calibrated, and the detection accuracy is obviously improved. |