Simultaneous online analysis method for nitrite and nitrate in water sample and test sample treatment device thereof

摘要: The invention provides a simultaneous online analysis method for nitrite and nitrate in water sample test treatment device thereof. has two structures, mainly comprises low-pressure pump, six-way feeding valve, mixer, reactor, container, an eluent color developing solution waste liquid anion separation column reduction column. An instrument comprising the testing is used method. following steps: 1. setting state surveying mapping base line; 2. converting into spectrogram of sample; 3. replacing by using series standard samples with known concentrations, repeating steps 1 2 to respectively obtain corresponding spectrograms, drawing working curve concentration as horizontal coordinate peak height longitudinal coordinate; 4. substituting value regression equation curve, figuring out concentrations sample.