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Sampling device and sample analyzer

A sampling device and sample liquid technology, applied in the field of biological analysis, can solve the problems of large minimum volume of large-capacity syringes, non-constant volume, small-capacity syringes cannot perform large-volume sampling operations, etc., to meet the requirements of accuracy and repeatability Effect

Pending Publication Date: 2022-05-06
SHENZHEN DYMIND BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, during the long-term research and development process, the inventors of the present application found that small-capacity syringes cannot perform large-volume sampling operations, and when large-capacity syringes are selected for small-volume or micro-volume sampling operations, the minimum range of large-capacity syringes is too large. The actual sampling volume is not constant, which cannot meet the accuracy and repeatability requirements of sampling

Method used

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  • Sampling device and sample analyzer
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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0021] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted...

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Abstract

The invention relates to the technical field of biological analysis, and particularly discloses a sampling device and a sample analyser, the sampling device at least comprises a sampling assembly and a suction assembly, the sampling assembly comprises a sampling needle and a sampling pipeline, and the suction assembly comprises a first suction unit and a second suction unit, the first capacity of the first suction unit is smaller than the second capacity of the second suction unit; wherein the sampling needle is communicated with the first suction unit through the sampling pipeline, the first suction unit is selectively communicated with or not communicated with the second suction unit, and the sampling assembly is used for being matched with the first suction unit to suck a first volume of sample liquid; or the sampling assembly is used for being matched with the first suction unit and the second suction unit to suck a second volume of the sample liquid, the first volume is smaller than the first capacity, and the second volume is larger than the first capacity. By means of the mode, the situation that the actual sampling amount is non-constant during small-dose or micro-sampling operation can be avoided, and the requirements for accuracy and repeatability are met.

Description

technical field [0001] The present application relates to the technical field of biological analysis, in particular to a sampling device and a sample analyzer. Background technique [0002] At present, analytical instruments have been widely used in fields such as chemistry, life sciences, pharmaceuticals, and the environment, and accuracy and repeatability are important indicators for evaluating the performance of analytical instruments. In the prior art, analytical instruments usually use a single syringe for sampling operations. [0003] However, during the long-term research and development process, the inventors of the present application found that small-capacity syringes cannot perform large-volume sampling operations, and when large-capacity syringes are selected for small-volume or micro-volume sampling operations, the minimum range of large-capacity syringes is too large. The actual sampling volume is not constant, which cannot meet the sampling accuracy and repea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14G01N33/50B08B9/035
CPCG01N1/14G01N33/50B08B9/035G01N2001/1418
Inventor 徐双
Owner SHENZHEN DYMIND BIOTECH
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