COD analyzer determination principle(二)

- Feb 06, 2018-

UV absorption conversion method

Conventional organic matter absorption of UV light is in accordance with the principle of Beer-Lambert law. The total absorption (organic matter + turbidity) is measured by a UV beam while turbidity absorption is measured by another visible light (VIs) After computer automatic processing, the influence of turbidity is deducted, and finally the accurate absorption of pure organic matter is obtained, and the content of organic matter is deduced. COD numbers are fixed by fixed coefficients.

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