Rapid Detection of Sulfadimidine Residue in Food by Colloidal Gold Strips

doi:10.7506/spkx1002-6630-201024080

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (24): 366-369.doi: 10.7506/spkx1002-6630-201024080

• Analysis & Detection • Previous Articles Next Articles

Rapid Detection of Sulfadimidine Residue in Food by Colloidal Gold Strips

LIN Xiao-li1，RAO Hui 2，XIONG Yong-hua1，CHEN Yuan3，LIU Wen-juan3，LAI Wei-hua1,*

1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China ；
2. Jiangxi Provincial Institute of Veterinary Drug and Feed Control, Nanchang 330029, China；
3. Jiangxi Zodolabs Biological Engineering Co. Ltd., Nanchang 330029, China

Received:2010-08-03 Revised:2010-11-14 Online:2010-12-25 Published:2010-12-29
Contact: LAI Wei-hua1 E-mail:talktolaiwh@163.com

Abstract

Abstract:

Objective: To establish a rapid and convenient detection method for sulfadimidine residue in food. Methods: The colloidal gold strip for specific sulfadimidine was developed successfully on the basis of competitive inhibition immunochromatography mechanism. Results: The detection limit of the colloidal gold strip was 10 ng/mL for sulfadimidine within less than 5 min, which also had low cross-reactivity with other sulfonamides. The colloidal gold strip could be used in rapid detection of sulfadimidine residue in many kinds of food samples with detection limit of 100 μg/kg. Conclusion: This method is characteristics of simplicity, high sensitivity and specificity to achieve the rapid detection of sulfadimidine residue in food.

Key words: sulfadimidine, colloidal gold, strip, rapid detection

CLC Number:

TS207.7

LIN Xiao-li1，RAO Hui 2，XIONG Yong-hua1，CHEN Yuan3，LIU Wen-juan3，LAI Wei-hua1,*. Rapid Detection of Sulfadimidine Residue in Food by Colloidal Gold Strips[J]. FOOD SCIENCE, 2010, 31(24): 366-369.

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Rapid Detection of Sulfadimidine Residue in Food by Colloidal Gold Strips

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