Bubble flowing resistant colorimeter cell capable of simultaneously detecting absorbance and fluorescence

Abstract

The invention provides a bubble flowing resistant colorimeter cell capable of simultaneously detecting absorbance and fluorescence, which belongs to optical elements for carrying out absorbance analysis and fluorescence analysis on liquid samples in the field of analysis instruments. The bubble flowing resistant colorimeter cell comprises a black base, a sample inlet tube, a light through hole passage, another light through hole passage and a sample outlet tube, wherein a cylindrical light through hole passage is arranged in the black base in a diagonal line direction; the other light through hole passage is arranged in a vertical direction of a central axis of the light through hole passage; the sample inlet tube and the sample outlet tube, which are used for a detected liquid to flow through, are arranged on the black base; the detected liquid flows in from the sample inlet tube, flows through end walls of the light through hole passage and the other light through hole passage and flows out from the sample outlet tube so as to form a Z-shaped liquid passage structure. According to the invention, as one light through hole passage vertical to the other light through hole passage is arranged, detections, such as absorbance detection, fluorescence wavelength detection, can be simultaneously carried out; as the light through hole passage and the other light through hole passage are blocked up, the sample cannot enter between the light through hole passage and the other light through hole passage; and through the adoption of the Z-shaped liquid passage, small bubbles in the sample can be gathered at the top, so that a measuring error is reduced.

Description

technical field [0001] The invention relates to an optical element for performing photometric analysis and fluorescence analysis on liquid samples in the field of analytical instruments, especially to a semi-automatic analysis instrument or a fully automatic analysis instrument that can simultaneously perform absorbance analysis and fluorescence analysis on samples. Bubble-proof flow cells for absorbance and fluorescence detection. Background technique [0002] Flow colorimetric cells are commonly used key components in analytical instruments. In the existing technology, absorbance detection and fluorescence detection are performed in two different flow colorimetric cells. The flow colorimetric cell structure for absorbance detection is generally composed of a cuboid black body base and light-transmitting materials fixed on both sides of the black body base. There is a cylindrical light-through hole in the axial direction of the colorimetric cell body. When the sample to be...

AI Technical Summary

Problems solved by technology

Solve the problem that the flow colorimetric cell in the prior art is only suitable for single detection of absorbance or fluorescence, and cannot perform both absorbance detection and fluorescence detection at the same time, and the liquid circuit design of the existing technology is prone to bubbles and sample residues, resulting in measurement Error, through the improved design of the liquid circuit of the present invention, the problem of residual samples and bubbles being detected can be reduced

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