Method for measuring water body total nitrogen and total phosphorous by digestion spectrophotometry of ultraviolet cooperating with ozone
A technology of photometry and ultraviolet light, which is applied in the field of environmental chemical monitoring, can solve the problems of inability to detect in real time on site, long analysis duration, complicated analysis process, etc., so as to facilitate rapid on-site detection, difficult marketing, and solve secondary pollution Effect
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[0035] The inventive method carries out according to the following steps by detection device:
[0036] (1) utilize ozone generator 2 to produce the ozone solution of stable concentration, the concentration of ozone is 10mg / l, make ozone solution circulate ozone solution balance chamber 5 by peristaltic pump 8 under 10ml / min flow rate, ozone solution balance chamber 5 is equipped with The ozone solution dynamic balance tube 7 made of optical glass is provided with an ultraviolet lamp 6 on its side. When the ozone solution flows through the dynamic balance tube 7, the ozone solution is partially decomposed to produce hydroxyl radicals, hydroxyl radicals and Ozone can act together as an oxidizing agent to oxidize water samples. The cooling circulating water 4 in the ozone solution balance chamber 5 ensures the stability of the ozone concentration.
[0037](2) After the ozone solution flows through the ozone solution dynamic balance pipe 7, it is immediately mixed with the water ...
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