Spectrophotometer for detecting ozone and determination method

Abstract

The invention relates to a spectrophotometer for detecting ozone. The spectrophotometer comprises a shell, a light source, a detector, a reflector and a rotating frame are arranged in the shell, the rotating frame is rotationally connected to the shell through a rotating shaft, a plurality of fixing seats used for loading test tubes are installed on the rotating frame, and a channel allowing the rotating frame to penetrate out of the shell is formed in the side wall of the shell. At least one fixed seat on the rotating frame is located outside the channel of the shell, the reflector is located in the rotating frame and fixed on the shell, a plurality of light through holes in one-to-one correspondence with the fixed seats are further formed in the circumferential side wall of the rotating frame, and the light source and the detector are both located outside the rotating frame. A worker installs the test tubes filled with the solution on the plurality of fixed seats in sequence, and each test tube can be positioned between the light source and the reflective mirror along with the rotation of the rotating frame, i.e., the absorbance can be detected, so that the worker does not need to frequently replace the test tubes, the working efficiency is improved, and the burden of the worker is reduced.

Description

technical field [0001] The present application relates to the field of gas detection, in particular to a spectrophotometer and a measurement method for detecting ozone. Background technique [0002] Ozone is poisonous at low concentrations, forming ozone pollution. Ozone at a certain concentration is not only poisonous to the human body, but also affects the growth of some plants, and even makes rubber products brittle and cracked. However, because ozone has a strong oxidation effect on organic matter, it has a good removal effect on malodorous gases and other odor molecules, and it also has a good killing effect on bacteria and microorganisms, so ozone will still be widely used. In order to reduce the pollution caused by ozone, it is particularly important to detect and monitor the ozone content in the air. [0003] According to the regulations in GBZ / T 300.48, the detection methods for ozone in the workplace air can be summarized as follows: first prepare formaldehyde sta...

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that a spectrophotometer needs to be used to measure the absorbance of various solutions during the measurement process, and the staff needs to take out the test tube containing the solution from the spectrophotometer after completing the detection of a solution , and then put another test tube containing other solutions into the spectrophotometer. This operation will be repeated many times, which is very inconvenient for the staff

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