Nano-gold test paper film and its application in chloride ion detection

A technology of nano-gold and chloride ions, applied in the field of chloride ions, to achieve good selectivity, rapid detection, and high detection sensitivity

Active Publication Date: 2020-11-24
湖南智享未来生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the related art, the technology of detecting sodium chloride by paper-based colorimetry is seldom reported.

Method used

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  • Nano-gold test paper film and its application in chloride ion detection
  • Nano-gold test paper film and its application in chloride ion detection
  • Nano-gold test paper film and its application in chloride ion detection

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purpose, features and advantages of the present invention more obvious and understandable, the specific implementation of the present invention will be further described below in conjunction with the accompanying drawings illustrate.

[0039] Neither the endpoints nor any values ​​of the ranges disclosed herein are limited to such precise ranges or values, and these ranges or values ​​are understood to include values ​​approaching these ranges or values. For numerical ranges, between the endpoints of each range, between the endpoints of each range and individual point values, and between individual point values ​​can be combined with each other to obtain one or more new numerical ranges, these values Ranges should be considered as specifically disclosed herein.

[0040] Firstly, the gold nanometer test pap...

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Abstract

The invention discloses a nano- gold test paper film. The nano-gold test paper film is formed by loading nano-gold particles on the surface of a PVDF film. The invention also discloses an applicationof the nano-gold test paper film in chloride ion detection based on the nano-gold test paper film. A method for detecting chloride ions comprises the following steps: S1, mixing a sample to be testedwith a nitric acid solution; S2, taking the nano-gold test paper film, adding the nano-gold test paper film to the mixed solution obtained in step S1, carrying out a reaction for 5-75 min, and qualitatively detecting chloride ions when the nano-gold test paper film fades; and S3, carrying out light intensity analysis on the reacted nano-gold test paper film by Image J software to obtain an opticalsignal in order to achieve quantitative detection of the concentration of chlorine ions in a solution to be tested. The nano-gold test paper film has the advantages of high detection sensitivity, high speed and simplicity operation when applied to the detection of chloride ions.

Description

technical field [0001] The invention relates to the technical field of chloride ions, in particular to a nano-gold test paper membrane and its application in the detection of chloride ions. Background technique [0002] Sodium chloride (NaCl) is an indispensable important substance in human life activities. It plays a vital role in the balance of water and osmotic pressure in the body, gastrointestinal digestive function, and acid-base balance in the body. Excessive intake of salt can lead to a series of diseases. At present, the most concerned diseases are hypertension, gastric cancer, asthma, osteoporosis and other diseases. Excessive intake of salt (sodium) has been listed as the eighth factor affecting human health. The World Health Organization recommends a daily salt intake of 5g per person. [0003] At present, the main detection methods of sodium chloride are: titration, ion chromatography, capillary electrophoresis, etc. The advantage of the titration method is t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78G01N21/31
CPCG01N21/3103G01N21/78
Inventor 许东俞淑芳殷月芹林亲录彭湘莲郭鑫王素燕张琳肖华西
Owner 湖南智享未来生物科技有限公司
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