On-line antimony reduction detection device and method

Abstract

The invention discloses an antimony online reduction detection device and method. The device comprises a photochemical reduction device and a detection device, the photochemical reduction device comprises a quartz micro-channel reaction chamber, an ultraviolet light source and a sample injector connected to a sample injection port of the quartz micro-channel reaction chamber, and a to-be-detected sample injected into the quartz micro-channel reaction chamber under irradiation of the ultraviolet light source and a reducing agent are subjected to a photochemical reduction reaction; the detection device comprises a hydride generation device connected with the outlet of the quartz micro-channel reaction chamber and an atomic fluorescence spectrometer connected with the hydride generation device. The photochemical reduction device is connected with the hydride generation device in the detection device, so that online photochemical reduction and atomic fluorescence spectrum detection of pentavalent antimony in a to-be-detected sample are realized, and detection of antimony in the to-be-detected sample can be realized according to an atomic fluorescence spectrum detection result; according to the invention, the detection speed is increased, the detection process is simplified, the medicament and labor cost is saved, the sensitivity is improved, and the secondary pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of metal element detection, in particular to an antimony online reduction detection device and method. Background technique [0002] At present, the detection techniques for antimony mainly include malachite green spectrophotometry, graphite furnace atomic absorption spectrophotometry, flame atomic absorption spectrophotometry and hydride generation-atomic fluorescence spectrometry (Hydride generation-atomic fluorescence spectrometry, HG-AFS) , Inductively coupled plasma-mass spectrometry (Inductively coupled plasma-mass spectrometry, ICP-MS), etc. Among them, the hydride generation-atomic fluorescence method (HG-AFS) has low detection limit, high sensitivity, simple operation and low cost, and is one of the mainstream methods for antimony detection in water. [0003] The main components of the equipment used in hydride generation-atomic fluorescence spectroscopy detection include sample injector, hydride g...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an environment-friendly, fast and simple antimony online reduction detection device and method, by connecting the detection device with a photochemical reduction device and integrating the antimony online reduction detection device to realize antimony online photochemical reduction and hydride atomic fluorescence detection ;Solve the problems

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