Cleaning method for biochemical analyzer cuvettes

Abstract

The invention relates to a cleaning method for biochemical analyzer cuvettes. The method comprises the following steps that the cuvettes are soaked in a washing powder solution and then taken out to be washed with pure water; the washed cuvettes are soaked in a first-component washing liquor, wherein the first-component washing liquor comprises a base solution composed of 100 ml of deionized water and 48 g of urea and a non-ion surfactant, the mass ratio of the base solution to the non-ion surfactant is 10 : 1, and the soaked cuvettes are taken out to be washed with pure water; a second-component washing liquor is prepared, the second-component washing liquor is composed of 100 ml of a 0.2 mol / L hydrochlric solution and 100 ml of a 75% ethanol solution, and the cuvettes are washed with the second-component washing liquor and then washed with pure water; a third-component washing liquor is prepared, the third-component washing liquor comprises 50 ml of dimethyl sulfoxide and 200 ml of deionized water, and the cuvettes are washed with the third-component washing liquor and then washed with pure water; the washed cuvettes are soaked with pure water; the cuvettes are taken out and soaked with a 0.2% EDTA solution, and after soaking is conducted, the cuvettes are washed with pure water and then soaked with pure water; and the cuvettes are taken out and placed at a dust-free position to be dried in shade.

Description

technical field [0001] The invention relates to a biochemical instrument cuvette, in particular to a cleaning method for a biochemical instrument cuvette. Background technique [0002] The current biochemical instrument uses spectrophotometry to detect blood samples. In spectrophotometry, there is a transmission method for immunoturbidity measurement. Immunoturbidity measurement requires the use of cuvettes, and cuvettes require At least the surface of the opposite cup is clean and bright, so as to provide light transmission and ensure light transmittance, so as to ensure the accuracy of spectrophotometric detection. And because the cuvette needs to often contain various blood lipids, serum, dye reagents to measure, the cuvette needs to be cleaned after the measurement to ensure the cleanness and transparency of the cuvette. Most of the current transmission immunoturbidity determination methods use polystyrene microsphere latex as the source of turbidity of the reaction. Wh...

AI Technical Summary

Problems solved by technology

Most of the current transmission immunoturbidity determination methods use polystyrene microsphere latex as the source of turbidity of the reaction. When such reagents are used for a long time on a biochemical analyzer, microspheres usually adhere to the wall of the cuvette. The problem is that the light transmittance of the cuvette decreases, and it is difficult to be cleaned and removed

In addition, the dyes of immunoturbidimetric assays are difficult to wash off

The existing cleaning of the cuvette of the biochemical instrument is to spray deionized water through the automatic spray gun of the biochemical instrument. This cleaning method is good for cleaning the protein stains on the cuvette wall, but for the It is difficult to clean the dyes and microspheres on the wall of the cuvette, which will directly cause poor use of the cuvette