Automatic sample feeding device for measuring selenium content of hair based on fluorescence spectrum

Abstract

The invention discloses an automatic sample feeding device for measuring the selenium content of hair based on fluorescence spectrum. The automatic sample feeding device comprises a supporting assembly, a pushing assembly, a pipetting assembly and a liquid storage assembly, the supporting assembly comprises a supporting plate, a lifting part, supporting legs and universal brake wheels, and the pushing assembly comprises a first electric push rod, a sliding rail, a sliding block and a test tube rack; and the pipetting assembly comprises a rotating motor, a turntable, an electric cylinder, a connecting frame, an extrusion piece and a sample injection needle. The height of the supporting assembly can be adjusted conveniently, and the supporting assembly can be moved conveniently; the pushingassembly facilitates test tube installation and can push the test tubes into an atomic fluorescence spectrum analyzer; and the pipetting assembly is used for transferring a current-carrying liquid sample in a first liquid storage barrel into a test tube and can be cleaned in a second liquid storage barrel.

Description

technical field [0001] The invention relates to the technical field of hair detection, in particular to an automatic sample feeding device for measuring the content of selenium in hair based on fluorescence spectrum. Background technique [0002] Selenium regulates the absorption and utilization of vitamin A, vitamin C, vitamin E, and vitamin K, and helps promote hair growth. Selenium is used by the body to make selenoprotein, which helps stimulate hair follicles to encourage new and healthy hair growth. Hair growth, through the detection of selenium in hair, can provide data support for doctors to judge the state of hair. [0003] Fluorescence is the excitation of substances after absorbing electromagnetic radiation, and the excited atoms or molecules re-emit radiation with the same or different wavelengths as the excitation radiation during the de-excitation process. When the excitation light source stops irradiating the sample, the re-emission process stops immediately, ...

AI Technical Summary

Problems solved by technology

[0005] However, the existing sample feeding device is still manually operated during use. In continuous testing, manpower is prone to errors, which affects the quality and effect of subsequent testing.

Images