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Membrane dialysis sample processing device and method applied in detection of melamine in milk and milk products

A technology of melamine and dairy products, which is applied in the preparation of test samples and dialysis, and can solve the problems of application limitations and low dialysis efficiency

Inactive Publication Date: 2010-09-22
崔海容
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sample processing is the first step in analysis. At present, there are many special devices for sample processing. The single-function ones include oscillation equipment, vortex equipment, heating equipment, magnetic stirring equipment, etc. There are also sample processing devices that integrate multiple functions. Dialysis technology devices currently only have single-function equipment, and the dialysis efficiency is low, which is greatly limited in application

Method used

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  • Membrane dialysis sample processing device and method applied in detection of melamine in milk and milk products
  • Membrane dialysis sample processing device and method applied in detection of melamine in milk and milk products
  • Membrane dialysis sample processing device and method applied in detection of melamine in milk and milk products

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Embodiment Construction

[0010] Add an appropriate amount of water into the water tank of the water bath heating unit, and set the temperature to heat. Take out the liner (7) of the purification unit, measure an appropriate amount of test solution (or receiving solution) into the cavity of the shell (6), measure in an appropriate amount of receiving solution (or test solution) into the cavity of the liner, and put The liner is packed into the casing cavity, and the cover (5) is screwed on. When the water in the water tank reaches the set temperature, the purification unit is put into the circular hole of the fixed bracket (4) to start timing. After the specified time is reached, take out the purification unit, take out the receiving solution, and then directly inject the sample for analysis.

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Abstract

The invention provides a membrane dialysis sample processing device for detecting melamine in milk and milk products, which mainly comprises a water-bath heating unit and a purification unit, wherein the water-bath heating unit is provided with an electronic temperature sensor and a digital display electronic temperature controller, and has temperature adjustment and automatic temperature control functions; and the purification unit has a two-layer nested structure, the wall of a liner has a window covered by a dialysis membrane, and a cavity between a shell and the liner is used for accommodating received liquid and test solution. The device has a good purification effect; the purified solution can be directly used for an assay by a developing process, liquid phase-mass-spectrography, high performance liquid chromatography and an electrochemical process; the structure is compact; the operation is convenient; the manufacturing is easy; and the manufacturing cost is low. The device can also be used for purification treatment of other detected substances.

Description

Technical field [0001] The invention relates to a device and a processing method for purifying and processing milk and milk product test solution for detecting melamine. Background technique [0002] Sample processing is the first step in analysis. At present, there are many special devices for sample processing. The single-function ones include oscillation equipment, vortex equipment, heating equipment, magnetic stirring equipment, etc. There are also sample processing devices that integrate multiple functions. Dialysis technology devices currently only have single-function equipment, and the dialysis efficiency is low, which is greatly limited in application. Contents of the invention [0003] In order to improve the dialysis efficiency, the present invention provides a membrane dialysis sample processing device, which is composed of a purification unit and a heating unit. Through heating, the balance of the solutions on both sides of the dialysis membrane is accelerate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/28B01D61/30G01N1/34G01N1/40
Inventor 崔海容
Owner 崔海容
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