12-lamp multi-channel atomic fluorescence spectrometer

Abstract

The invention provides a 12-lamp multi-channel atomic fluorescence spectrometer. A plurality of layers of exciting units are arranged on a channel corresponding to an atomizer; each exciting unit comprises four element lamps with different elements and optical lenses aligned with the element lamps; the formed exciting units, the atomizer, the lenses, a photomultiplier and a signal processing system form a multi-channel element analysis system; an exciting light source of each element lamp in the exciting units is aligned with the center of the atomizer; the exciting light source of each element lamp excites fluorescence emitted from atoms with different elements to be received by the photomultiplier through the lenses and converted into an electric signal to be transmitted to the signal processing system; and the fluorescence intensity is calculated to analyze content of corresponding elements through the signal processing system. The invention has the advantages that: the fluorescence spectrometer is optionally grouped according to needs, the corresponding element lamps serve as a unit and are measured simultaneously, and non-stop continuous operation is realized. The analysis time is saved, the efficiency is improved, the sample required amount is reduced, and the analysis cost is reduced.

Description

technical field [0001] The invention relates to a 12-lamp-position multi-channel atomic fluorescence photometer applied to atomic fluorescence spectrum analysis in the field of analytical chemistry. Background technique [0002] Atomic Fluorescence Spectroscopy (AFS) is an excellent trace-level analysis method for measuring the content of elements in a sample. It detects target elements by measuring the intensity of atomic fluorescence emitted by atoms from an excited high-energy state back to a low-energy state. content. This method has the advantages of both atomic absorption and atomic emission spectroscopy, and overcomes many of the shortcomings of the above two techniques. This method has the advantages of high sensitivity, less interference, wide linear range, and simultaneous measurement of multiple elements, so it is widely used in various industries and fields such as environmental protection, food hygiene, medicine, and geological exploration. [0003] At present...

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Problems solved by technology

This will inevitably prolong the detection time, increase the sample demand, increase the measurement cost, and bring inconvenience to continuous work.

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