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Multi-cuvette automatic analysis system and method and application of system and method

An automatic analysis system and colorimetric analysis technology, applied in the field of multi-cuvette automatic analysis systems, can solve the problems of low concentration, difficult detection, and unfavorable detection of rare samples, and achieve the effect of avoiding cross-contamination and reducing intermediate steps.

Active Publication Date: 2015-04-08
SHENZHEN LIGHTSUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, although the existing fully automatic intermittent chemical analyzer can improve the accuracy, on the one hand, for some samples with less sample volume and lower concentration, it is difficult for the existing 0.6cm optical path cuvette to reach the detection threshold. In addition, the existing automatic intermittent chemical analyzers use cuvettes made of polymer materials and plastic materials, which have poor light transmission and are not conducive to the detection of rare samples and samples with low concentrations, such as SO 2 The detection of SO in food and water quality 2 Volatile and low in concentration, it is difficult to detect effectively with the existing 0.6cm optical path cuvette

Method used

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Embodiment 1

[0070] refer to figure 1 , the embodiment of the present invention provides a multi-cuvette automatic analysis system 10, the multi-cuvette automatic analysis system 01 includes: a power device (not shown) for providing power to the multi-cuvette automatic analysis system 01, A colorimetric device 10 for colorimetric analysis of the sample, a sample loading device 20 for adding the sample to the cuvette, a cleaning device 30 for cleaning the cuvette, and a control device for regulating each device parameter ( Not marked), wherein the colorimetric device includes a cuvette with an optical path of 1 cm, and the cuvette is made of quartz.

[0071] The colorimetric device 10 also includes a cuvette tray, which has 64 cuvette grooves for loading cuvettes, and each cuvette position is marked with a number for easy identification. The cuvette is equipped with a constant temperature device, which is used to ensure that the reaction is stable at a specific temperature, wherein the spe...

Embodiment 2

[0097] The multi-cuvette automatic analysis system provided by the invention can also be used to prepare a standard curve. Specifically, the method for preparing the standard curve is:

[0098] Two cuvettes are required to dilute a solution of a ratio, one of which is used to dilute the solution, and the second cuvette is used as a reaction vessel. For example: to configure eight concentration gradients, you only need to place the maximum concentration and zero point, and select the dilution factor for the remaining six standard gradients according to the needs, and the instrument will automatically dilute according to the dilution ratio. For example, to dilute a 1:1 standard solution, the automatic sampling arm of the sampling device first takes 450 μL of distilled water in the reagent tube, then transfers it to the sample tube and then takes 450 μL of the standard mother solution, add them to cuvette A and mix well ;According to the parameter reaction principle, draw a cert...

Embodiment 3

[0100] The invention provides the colorimetric method of following several samples:

[0101] 1. Detection of samples containing hexavalent chromium ions

[0102] (a) R1+S; after adding reagent R1, preheat for 2 to 4 minutes, then add sample S to react and develop color, and the reaction time is recorded as T1; where, R1 is diphenylcarbazide-acetone-sulfuric acid solution, S It is the solution to be tested containing hexavalent chromium ions, and T1 is 200-480 seconds;

[0103] 2. Detection of borate-containing samples

[0104] (b) R1+S+R2; after adding reagent R1, preheat for 2 to 4 minutes, then add sample S, and the reaction time is marked as T1; then add reagent R2 for color development, and the reaction time is marked as T2; among them, R1 is Acetic acid-ammonium acetate buffer solution, R2 is azomethine H solution, S is the test solution containing borate, T1 is 20-70 seconds, T2 is 300-600 seconds;

[0105] 3. Detection of samples containing sulfur dioxide or sulfite ...

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Abstract

The invention discloses a multi-cuvette automatic analysis system and method and application of the system and the method. The multi-cuvette automatic analysis system comprises a power device, a colorimetric device, a sample adding device, a cleaning device and a control device, wherein the power device is used for providing power for the multi-cuvette automatic analysis system; the colorimetric device is used for performing colorimetric analysis on samples; the sample adding device is used for adding the samples into cuvettes; the cleaning device is used for cleaning the cuvettes; the control device is used for regulating the parameters of each device; and the colorimetric device comprises the cuvettes of which the light paths are 1cm. The light paths of the adopted cuvettes are 1cm, the light paths are lengthened, and the colorimetric analysis of the low-concentration samples is realized.

Description

technical field [0001] The invention relates to the detection field, in particular to a multi-cuvette automatic analysis system, a colorimetric analysis method and an application. Background technique [0002] With the continuous advancement of national policies such as food safety, water quality safety, and environmental safety, the relevant testing requirements continue to increase, and the original manual analysis needs to be improved. At present, there are few cuvette analysis instruments independently developed in China, coupled with the limitations of factors such as lack of experience and short practice time, domestic testing of food, water, and the environment is still generally carried out by manual analysis. [0003] For example, "Water and Wastewater Monitoring and Analysis Methods (Fourth Edition)" is used to measure nutrients by spectrophotometry. However, when measuring a large number of samples, the manual method is slow in analysis speed, labor-intensive, an...

Claims

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Application Information

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IPC IPC(8): G01N35/00
Inventor 朱伟胜陈总威张展文谢佳裕刘玉虎
Owner SHENZHEN LIGHTSUN TECH CO LTD
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