Sample storage ring module for sequential injection atomic fluorescence spectrometer, and manufacturing method thereof

Abstract

The invention discloses a sample storage ring module for a sequential injection atomic fluorescence spectrometer, and a manufacturing method thereof. The sample storage ring module comprises a fixed shaft, a capillary, a left check block, a right check block and a jacket, wherein the capillary is wound on the fixed shaft; the left check block and the right check block are respectively installed on left and right sides of the capillary wound on the fixed shaft; and the jacket is installed on the left check block and the right baffle block. By carrying out modular design on a sample storage ring pipeline, an image of a sequential injection atomic fluorescence product is improved, thus enabling a flow path system to be simple and reliable, greatly improving maintainability, realizing high reproducibility of a sequential injection sampling system, effectively inhibiting a diffusing effect, and further obviously improving the repeatability of sequential injection atomic fluorescence analysis results.

Description

technical field [0001] The invention relates to the field of liquid path systems of atomic fluorescence spectrometers, in particular to the field of liquid path systems for sequential injection of atomic fluorescence spectrometers. Background technique [0002] The sampling system of atomic fluorescence is divided into three sampling modes: intermittent flow, continuous flow and sequential injection. Intermittent flow sampling systems and continuous flow sampling systems generally use peristaltic pumps for sampling. The flow path system is simple and low in cost, but the degree of automation is low, and the sampling accuracy and repeatability are poor. The former consumes a lot of reagents, resulting in higher analysis costs; the latter consumes a lot of reagents and samples, and is prone to memory effects. Sequential injection sampling generally uses high-precision syringe pumps and multi-position valves to inject samples. The flow system is complex and the cost is relativ...

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Problems solved by technology

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a sample storage ring module for sequential injection of atomic fluorescence spectrometer and its manufacturing method, which solves the problems caused by the irregular sample storage ring in the background technology

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