Photoelectrochemical analysis device and method

Abstract

The invention belongs to the technical field of photoelectrochemical detection equipment, and discloses a photoelectrochemical analysis device and method. The left side of the turntable box is integrally connected with a monochromator through a slit outlet. A xenon lamp is arranged on the left side of the monochromator. A turntable box is fixed in the darkroom through bolts, and an electric turntable is arranged in the turntable box through bolts. A slide rail is fixed on the right side of the turntable box through bolts, a detection pool is clamped on the slide rail, and a light window is arranged on the side of the detection pool. By arranging the xenon lamp, a broad-spectrum light source of 200 nm to 1100 nm can be provided, a full-automatic scanning light splitting system can provide monochromatic light of any wavelength accurate to 0.1 nm, and optimal analysis conditions are provided for mechanism research. Through arranging the electric turntable, the automatically controlled electric light cutting system can provide a wide-range light modulation function, the light source turn-off / turn-off time can be respectively adjusted, and the continuous adjustment of any duty ratio andany turn-off frequency is realized.

Description

technical field [0001] The invention belongs to the technical field of photoelectrochemical detection equipment, and in particular relates to a photoelectrochemical analysis device and method. Background technique [0002] At present, the electron transfer caused by photoexcitation of photoelectrochemical active substances will lead to the generation of photocurrent. The photoelectrochemical analysis method is based on the above principle, and realizes the detection of the concentration of the analyte by directly or indirectly detecting the strength of the photocurrent. Due to the advantages of simple device, convenient operation, low detection limit, high sensitivity, and low background value, photoelectrochemical analysis has developed rapidly in recent years and has been applied in the fields of environmental protection, biochemistry, medical treatment, and energy. [0003] In the photoelectrochemical analysis method, a light source is first required to excite the photoel...

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Problems solved by technology

If the wavelength of the light source selected in the experiment is not suitable, the corresponding photoelectrochemical phenomenon will not be caused, and the corresponding photocurrent will not be detected.

[0006] (2) In the existing photoelectrochemical analyzers, xenon lamps and monochromators are used to obtain continuous wavelengths for photochemical reactions. Due to the limited power of the light source and the attenuation of the energy by the monochromator, the optical power output is small, which is difficult. Meet the needs of high-energy photoelectrochemical research

[0008] To solve the above problems, it is necessary for the instrument to provide a continuous wavelength and high power light source for the photoelectrochemical reagent. At present, there is no instrument that can meet these two requirements at the same time.

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