Determination of Ochratoxin A in Pig Muscle Using Dispersive Liquid-liquid Microextraction Combined with High-Performance Liquid Chromatography

作者：Luan, Chuanlei; Wang, Lin; Chen, Fangfang; Wang, Shue; Zhao, Li; Shao, Lihua^*

来源：Food Analytical Methods, 2016, 9(6): 1490-1494.

DOI：10.1007/s12161-015-0330-4

• Ochratoxin A
• Pig muscle
• Dispersive liquid-liquid microextraction
• High-performance liquid chromatography

A new method was developed for the rapid analysis of ochratoxin A (OTA) in pig muscle using dispersive liquid-liquid microextraction (DLLME) combined with high-performance liquid chromatography (HPLC). OTA was extracted with methanol and then cleaned up with DLLME procedure. After being blown dry and redissolved, the sample was determined using high-performance liquid chromatography with fluorescence detector (HPLC-FLD). Under the experimental conditions, the LOD was 0.21 mu g kg(-1), LOQ was 0.70 mu g kg(-1), and the recovery was higher than 80 %. Intra- and inter-day repeatability expressed as RSD were less than 5 %. The established method is more efficient, easier, and cheaper than conventional cleaning up procedure.

• 出版日期2016-6
• 单位山东大学