کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5132725 | 1492055 | 2017 | 7 صفحه PDF | دانلود رایگان |
- This is the first demonstration of the use of IAC for the clean-up of MQCA.
- Based on IAC purification procedures, HPLC-UV and GICA methods were developed.
- Compared with traditional SPE, IAC provides a good purification effect.
- This method is an environmentally friendly approach to control MQCA.
An immunoaffinity column (IAC) for the selective purification of 3-methyl-quinoxaline-2-carboxylic acid (MQCA) from porcine muscle and the liver as well as the methods for its determination by high-performance liquid chromatography with ultraviolet detection (HPLC-UV) and a colloidal gold-based immunochromatographic assay (GICA) were developed. This is the first study that describes a clean-up method that employs an IAC for the determination of MQCA. Using the HPLC-UV method, the limits of detection and limits of quantification for MQCA in different samples were 1.0-3.0 μg kgâ1 and 4.0-10.0 μg kgâ1, respectively. The average recoveries of MQCA that was spiked into samples at concentrations of 4.0-100 μg kgâ1 were 80.1-87.7%, with relative standard deviations of less than 8.5%. Using the GICA method, the limits of detection for MQCA in different samples were 10 μg kgâ1 and 50 μg kgâ1. No false negatives or false positives were observed.
Journal: Food Chemistry - Volume 237, 15 December 2017, Pages 290-296