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| Determination of New Red in Beverages and Prepared Wines by HPLC－MS/MS with Solid Phase Extraction Based on Metal Organic Frameworks UiO－66－NH2 |
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| DOI： |
| KeyWord:metal organic frameworks solid phase extraction high performance liquid chromatography－tandem mass spectrometry new red beverage prepared wines |
| Author | Institution |
| FENG Jun-jun，WANG Jing，ZHAO Lian-xing，JIANG Hai-yun，LIAN Ya-lin，TAN Tian-yu，ZHANG Fan，JING Zheng-yi，HE Feng，LI Teng-fei |
1. College of Life Science and Food Engineering， Hebei University of Engineering， Handan ， China; 2. College of Materials Science and Engineering，Hebei University of Engineering， Handan ， China; 3. Food and Drug Inspection Center of Handan City， Handan ， China |
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| Abstract: |
| A new type of solid phase extraction column filler metal organic frame material（MOFs） UiO－66－NH2 was prepared，and a solid phase extraction/high performance liquid chromatography－tandem mass spectrometry（SPE/HPLC－MS/MS） was developed for the determination of new red in beverages and prepared wines. The structure and adsorption properties of UiO－66－NH2 were characterized by scanning electron microscopy，infrared spectroscopy and nitrogen adsorption－desorption isotherm. The samples were separated on a Waters AtlantisTM T3（150 mm × 2.1 mm，3 μm） column with 10 mmol/L ammonium acetate aqueous solution and methanol as mobile phases，and analyzed in multiple reaction monitoring（MRM） mode. The results showed that，under the optimal extraction conditions，the calibration curves for new red showed good linearities in the range of 0.05－10 mg/L， with correlation coefficients（r2） of 0.998.The limits of detection（LODs） and limits of quantitation（LOQs） were 0.05 mg/L and 0.15 mg/L，respectively. The recoveries of this method ranged from 87.8% to 107%， with relative standard deviations（RSDs，n = 6） of 1.9%－11%， indicating that this method has good accuracy and precision. It is also proved that the UiO－66－NH2 based solid phase extraction column could be used as a high quality adsorption material for detection of new red in beverages and prepared wines. |
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