Water quality quick measuring method for indirectly measuring BOD5 (five-day biochemical oxygen demand) in water
A biochemical oxygen demand and rapid determination technology, which is applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of relative deviation exceeding the specification requirements, complicated process, and inability to oversaturation, etc., to achieve fast detection response speed, easy operation, and eliminate effect of influence
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[0020] The present invention will be described in further detail below in conjunction with the examples.
[0021] A water quality rapid determination method for indirect determination of five-day biochemical oxygen demand in water, the steps are as follows:
[0022] (1) Preparation of reagents, materials, and instruments: reagents and materials include five-day biochemical oxygen demand quality control samples or standard samples, blind samples, chemical oxygen demand determination reagents, etc., and instruments include COD digestion instrument and CODcr analyzer. The BOD standard sample or quality control sample is the GSBZ50002-88BOD5 (200245) standard material of the Institute of Standard Samples, Ministry of Environmental Protection, and its theoretical value is 78.9 mg / L. Chemical oxygen demand determination reagents are commercially available, usually in the range of 20-1500 mg / L or 3-150 mg / L. Blind samples are water quality samples that need to be tested or monitored...
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