Device and method for detecting concentration of trace superoxide ion free radicals in water by adopting chemiluminescence reagent

A chemiluminescence reagent, superoxide ion technology, applied in chemiluminescence/bioluminescence, analysis by chemical reaction of materials, etc., can solve the problem of easy to be interfered by metal ions and selectivity, achieve easy operation and high sensitivity , the effect of simple operation process

Pending Publication Date: 2021-01-26
ANHUI ELECTRIC POWER DESIGN INST CEEC
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Problems solved by technology

Chemiluminescence has become the first choice for the detection of trace superoxide ions in environmental water due to its high sensitivity and simple operation.

Method used

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  • Device and method for detecting concentration of trace superoxide ion free radicals in water by adopting chemiluminescence reagent

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing:

[0031] Such as figure 1 The device for detecting the concentration of trace superoxide ion free radicals in water using chemiluminescent reagents as shown includes a container bottle 1 for the water body to be tested, a chemiluminescent reagent container bottle 2, a peristaltic pump 4, a spiral luminescent tube 6, a photon counter 7, and a computer 8 and waste bottle9. The container bottle 1 of the water body to be tested and the container bottle 2 of the chemiluminescent reagent are connected to the liquid inlet end of the spiral luminescent tube 6 through the peristaltic pump 4 respectively. The photon counter 7 is arranged on one side of the spiral light emitting tube 6 for recording the light signal in the spiral light emitting tube 6 . The photon counter 7 is connected with a computer 8 . The waste liquid bottle 9 is connected with the liquid outlet end of the spira...

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Abstract

The invention relates to a device and a method for detecting the concentration of trace superoxide ion free radicals in water by adopting a chemiluminescence reagent. The device comprises a to-be-detected water body container bottle, a chemiluminescence reagent container bottle, a peristaltic pump, a spiral luminescent tube, a photon counter, a computer and a waste liquid bottle. And the to-be-detected water body container bottle and the chemiluminescence reagent container bottle are respectively communicated with the liquid inlet end of the spiral luminescent tube through the peristaltic pump. The photon counter is arranged on one side of the spiral light-emitting tube and used for recording light signals in the spiral light-emitting tube. The photon counter is connected with the computer. The waste liquid bottle is connected with the liquid outlet end of the spiral luminous tube. And a chemiluminescence reagent solution is contained in the chemiluminescence reagent container bottle.According to the method, a chemiluminescence reagent reacts with a to-be-detected water body solution containing superoxide ions to generate an optical signal, and primary attenuation fitting is carried out according to the dynamic track of the optical signal to deduce the concentration of the superoxide ions in the to-be-detected water body.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a device and method for detecting the concentration of trace superoxide ion free radicals in water by using a chemiluminescence reagent. Background technique [0002] In recent years, advanced oxidation technology has been widely used in the field of water treatment. This technology uses the generated active oxygen species to oxidize pollutants in water to achieve the purpose of purifying water. superoxide radical (O 2 ·- ) has become an important reactive oxygen species in the aquatic environment due to its reducing properties. Oxygen forms superoxide ions by accepting excited state electrons from electron donors. Superoxide ions can also combine with hydrogen ions to form hydroperoxy radicals (HO 2 · ) form, its acidity coefficient pKa is 4.48. Due to the existence of lone pairs of electrons, superoxide ions are very unstable in water and will decay through self-c...

Claims

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Application Information

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IPC IPC(8): G01N21/76
CPCG01N21/76
Inventor 黄和马建中苏翔峰贾利朱宇军
Owner ANHUI ELECTRIC POWER DESIGN INST CEEC
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