[Determination of urea in canned foods by high performance liquid chromatography-fluorescence detection coupled with precolumn derivatization]. 2015

Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke

A method for the determination of urea residue in canned foods by high performance liquid chromatography-fluorescence detection (HPLC-FLD) coupled with precolumn derivatization was established. The sample (5.0 g), including canned edible fungi, fruit, vegetable, fish, and meat was extracted with 20 mL 1% (v/v) acetic acid solution. The extract was centrifuged, filtrated, and then derivatized with xanthydrol. The analysis was completed with HPLC-FLD. A good linear relationship was obtained in the range of 0.1-500 mg/L with the correlation coefficients more than 0.9995. The average recoveries of urea spiked at 0.001-30 g/kg levels in five kinds of canned foods ranged from 80.2% to 109.7% with the RSDs of 2.05%-6.53%. The limit of detection (LOD) was 0.5 mg/kg, and the limit of quantitation (LOQ) was 1.0 mg/kg. The proposed procedure was then applied to the analysis of 168 real samples collected from Xiamen, Fujian Province, China. The existence of urea was found in three pork cans with contents of 10.6, 62.1 and 2.6 mg/kg, respectively. The method is stable, reliable, simple and suitable for the determination of urea in canned foods, and has great potential for routine analysis in foodstuffs.

UI MeSH Term Description Entries
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D014508 Urea A compound formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids. Basodexan,Carbamide,Carmol
D057141 Food, Preserved Food that has been prepared and stored in a way to prevent spoilage. Food, Canned,Food, Dried,Canned Food,Canned Foods,Dried Food,Dried Foods,Foods, Canned,Foods, Dried,Foods, Preserved,Preserved Food,Preserved Foods
D057230 Limit of Detection Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure. Limits of Detection,Detection Limit,Detection Limits

Related Publications

Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
June 2012, Se pu = Chinese journal of chromatography,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
January 2000, Journal of AOAC International,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
August 2017, Se pu = Chinese journal of chromatography,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
April 1994, Journal of chromatography. B, Biomedical applications,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
April 1990, Journal of chromatography,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
August 2001, Journal of chromatography. A,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
September 2014, Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
August 2020, Se pu = Chinese journal of chromatography,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
June 2009, Journal of agricultural and food chemistry,
Qi Zeng, and Jin Zhang, and Dunming Xu, and Zhigang Zhang, and Zhicheng Ke
January 2006, Se pu = Chinese journal of chromatography,
Copied contents to your clipboard!