Determination of total nitrogen by ultraviolet spectrophotometry

Determination of total nitrogen by ultraviolet spectrophotometry, Total:3 items.

In the international standard classification, Determination of total nitrogen by ultraviolet spectrophotometry involves: Vocabularies, Water quality.

Professional Standard - Environmental Protection, Determination of total nitrogen by ultraviolet spectrophotometry

• HJ 636-2012 Water quality.Determination of total nitrogen.Alkaline potassium persulfate digestion UV spectrophotometric method
• HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Determination of total nitrogen by ultraviolet spectrophotometry

• GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method

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