Study on uncertainty evaluation of total nitrogen in water by ultraviolet spectrophotome-try with alkaline potassium persulfate digestion
This paper analyzes the influencing factors of uncertainty in the process of using alkaline potassium persulfate digestion ultraviolet spectrophotometry to determine total nitrogen inwater quality,such as standard curve fitting,measurement repeatability and other factors thatmay affect the measurement results,and explores ways to re-duce interference,so that the laboratory experiment process is under control.
UncertaintyTotal nitrogenUltraviolet spectrophotometry for potassium persulfate Digestion
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