Determination of Nitrate and Nitrite in water

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Rami Alani

Dear Mohammad Mahbub Kabir

instead of chromatography, you can use spectrometer.

Colorimetric Method is also can be used.

Shukra Raj Paudel

Dear Kabir,

There are so many Nitrate/Nitrite Colorimetric Assay Kits in the market.

Hope this is helpful for you!

Best!

Arvind Singh

Please have a look at these useful RG links.

Article A Spectrophotometric Method for the Determination of Nitrite...

Article Spectrophotometric determination of nitrite in water

Article Detailed Validation of a Method for the Determination of Nit...

https://www.researchgate.net/post/Can_anyone_suggest_a_method_for_determination_of_nitrate_concentration_in_water_range_1M_to_100mM2

Detlef Jensen

How many samples do you have to analyze?

Keep in mind that analyzing nitrite and nitrate by photometric approaches requires sample preparation.

For a few samples manual photometry (including reduction of nitrate to nitrite) might be an approach.

For more samples you will have to look into automation. For nitrogen nutrients photometric determination might be sufficient, and can be automated. If you need more information, please let me know.

Pawan Bhattarai

Nitrate and nitrate can be measured using a HACH-DR 5000 UV-Vis Spectrophotometer, USA colorimeter using the cadmium reduction method (Method 8039) at 500 nm and diazotization method (Method 8507) at 507 nm, respectively.