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Electrochemical fingerprint spectrum method for detecting edible bird's nests

A technology of fingerprint and detection method, which is applied in the field of electrochemical fingerprint detection of bird's nest, can solve the problems of identifying bird's nest, and achieve the effect of low cost and good application prospect

Active Publication Date: 2019-09-17
ZHONGSHAN FLASHLIGHT POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses brushes made from bismuth oxide (Ba2Os) or cerium dioxde (ceria), which are known to emit electrical current when exposed to light. These currents indicate that birds have nests inside them. By measuring these electric signals it becomes possible to identify any features on their surface such as shape, size, texture, color, etc., making this process simpler than previous methods like chemical analysis techniques.

Problems solved by technology

This patented technical problem addressed in this patents relates to identifying birds with an egg shell made from certain materials that can cause harm or even deteriorated health if consumed without proper care due to their composition and quality.

Method used

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  • Electrochemical fingerprint spectrum method for detecting edible bird's nests
  • Electrochemical fingerprint spectrum method for detecting edible bird's nests
  • Electrochemical fingerprint spectrum method for detecting edible bird's nests

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 Electrochemical fingerprint of the present invention identifies bird's nest

[0029] 1) Preparation of sample hydrolyzate

[0030] The sample to be tested was dried to constant weight, ground, and passed through a 120-mesh sieve. Add 0.1120g of sample powder and 5mL of 1.0mol / L sulfuric acid to the glass test tube, place it in an oven for hydrolysis at 40°C for 8 hours, filter, and take the filtrate to obtain the sample hydrolyzate;

[0031] 2) B-Z electrochemical oscillation fingerprint

[0032] Take step 1) 5mL sample hydrolyzate, 5mL 2.0mol / L H 2 SO 4 , 10mL 1.8mol / L HOOCCH 2 COOH, 10mL 0.016mol / L (NH 4 ) 4 Ce(SO 4 ) 4 , placed in a 150mL glass reaction vessel, shake well, and cover the reactor cover with injection holes and electrodes. At 35°C, with a stirring speed of 500r / min, add 10mL of 1.0mol / L KBrO 3 , at this time in the mixed solution [H + ]=0.75mol L -1 ,

[0033] [Ce 4+ ]=0.004mol L -1 、[HOOCCH 2 COOH]=0.45mol L -1 , [BrO 3 ...

Embodiment 2

[0035] Embodiment 2 Electrochemical fingerprint of the present invention identifies bird's nest

[0036] 1) Preparation of reference hydrolyzate

[0037] Take the genuine bird's nest and dry it to constant weight, grind it, and pass it through a 120-mesh sieve. Add 0.1120g of bird’s nest powder and 5mL of 1.0mol / L sulfuric acid to the glass test tube, place in an oven for hydrolysis at 40°C for 8 hours, filter, and take the filtrate to obtain bird’s nest hydrolyzate;

[0038] 2) Preparation of sample hydrolyzate

[0039] The sample to be tested was dried to constant weight, ground, and passed through a 120-mesh sieve. Add 0.1120g of sample powder and 5mL of 1.0mol / L sulfuric acid to the glass test tube, place it in an oven for hydrolysis at 40°C for 8 hours, filter, and take the filtrate to obtain the sample hydrolyzate;

[0040] 3) B-Z electrochemical oscillation fingerprint

[0041] Step 1) 5mL bird's nest hydrolyzate, 5mL 2.0mol / L H 2 SO 4 , 10mL 1.8mol / L HOOCCH 2 CO...

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Abstract

The invention provides an electrochemical fingerprint spectrum method for detecting edible bird's nests. By using detection of a B-Z oscillation reaction, the method comprises the following specific operating steps: (1) preparation of a hydrolysate of edible bird's nests; (2) B-Z oscillation of an electrochemical fingerprint spectrum; and (3) analysis of the electrochemical fingerprint spectrum. According to the electrochemical fingerprint spectrum method for detecting edible bird's nests provided by the invention, by using a BrO3<->-Ce<2+>-H<+>-malonic acid oscillation system, authentication of the edible bird's nests is carried out without complex pretreatment, feature information can be obtained, and the method is an accurate, simple and convenient low-cost authentication method and has good application prospects.

Description

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Claims

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Application Information

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Owner ZHONGSHAN FLASHLIGHT POLYTECHNIC
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