A non-destructive droplet detachment device for micro-sampler

A technology for detaching from the device and micro-sampling, which is applied in the direction of measuring tubes/pipettes, laboratory containers, laboratory utensils, etc., and can solve the problems that micro-samplers cannot drop tiny droplets, etc., and reach the scope of application Wide range, quantitative accuracy, and the effect of improving operational efficiency

Active Publication Date: 2018-06-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to overcome the deficiency that the micro-sampler cannot drop tiny liquid droplets, and invent a non-destructive droplet detachment device for the micro-sampler

Method used

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  • A non-destructive droplet detachment device for micro-sampler
  • A non-destructive droplet detachment device for micro-sampler
  • A non-destructive droplet detachment device for micro-sampler

Examples

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Embodiment 1

[0030] A droplet detachment device for a microsampler such as figure 1 As shown, it includes a micro-sampling assembly 1 , a bracket assembly 15 , a position adjustment assembly and a super-lyophobic separator sheet 4 . figure 2 Adjust component local structure for position. In this example, water droplets are used as the operating object, and an ordinary micro-sampler with a volume range of 10 μL is used as the sample injection component. The super-lyophobic liquid separator used is an aluminum sheet with a contact angle with water of 160° and a rolling angle of 2°. (6061 aluminum alloy), with pores for 1-8μL and 4-8μL drops respectively, such as image 3 shown. In this embodiment, the side plate and the base plate are fixed to drip liquid.

[0031] After the side panels of the bracket assembly are connected to the base plate, place the base plate horizontally. After the sample injection component absorbs 10 μL of water in the full scale, it is fixed on the clamp on the ...

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Abstract

The invention relates to a liquid drop non-damage separating device used for a microsyringe. The liquid drop non-damage separating device comprises a micro-sampling assembly, a support assembly, a position adjusting assembly and a super-lyophobic liquid separating piece. The micro-sampling assembly is fixed to a side plate of the support assembly through an elastic clamp, and the super-lyophobic liquid separating piece is fixed to a position adjusting rod of the transverse position adjusting assembly. The liquid drop non-damage separating device has the advantages that the liquid drop position is accurate; quantifying is accurate; application requirements of different fields can be met; operating efficiency can be promoted; the application range is wide.

Description

technical field [0001] The invention relates to a non-destructive detachment device for liquid droplets used in micro-injectors. Background technique [0002] Because micro-samplers can achieve high-precision and micro-feeding of liquids, they are often used to absorb and distribute liquids in chemistry, biological test analysis, and fluid dynamics experiments. However, due to the adhesiveness of the needle of the injector to the droplet, for a droplet with a small volume, the gravity of the droplet cannot overcome the adhesion force of the needle to make the droplet detach. [0003] In recent years, various methods such as pressure control and micro-ejection have been applied to the study of micro-droplet detachment. Patent CN204051713U designed a micro-pipetting device, the droplet is separated by a pressurizer installed on the sampler shell, but since there is no liquid suction piston rod in the structure, the liquid suction can only be completed by capillary action, Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/02
CPCB01L3/0251
Inventor 宋金龙程玮郑焕玺刘新孙晶刘子艾刘吉宇
Owner DALIAN UNIV OF TECH
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