Citation: DENG Min, HUANG Xue-Yong, WANG Wen-Jing, CUI Meng, YU Teng-Hui, LUO Li-Ping. Identification of Honeys and Syrups by Microwave Plasma Torch Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry, ;2018, 46(6): 902-909. doi: 10.11895/j.issn.0253-3820.171227 shu

Identification of Honeys and Syrups by Microwave Plasma Torch Mass Spectrometry

1.
School of Life Sciences, Nanchang University, Nanchang 330031, China;
2.
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China

Received Date: 4 September 2017
Revised Date: 18 March 2018

Fund Project: This work was supported by the Advantage Science and Technology Innovation Team Project of Jiangxi Province, China (No. 20171BCB24002).

In this study, a method for rapid identification of three kinds of honey and four kinds of syrup by microwave plasma torch mass spectrometry (MPT-MS) without sample pretreatment was established. Under the positive ion mode, honey and syrup were ionized by MPT-MS and analyzed by quadrupole mass spectrometry (QMS). The MS data were analyzed with chemometrics methods. Consequently, principal component analysis (PCA) showed that PC1, PC2 and PC3 had a total contribution rate of 91.2%, and cluster analysis (CA) indicated when the critical value was 7, this method could distinguish honey and syrup in addition to clover honey and inulin syrup. Partial least squares-discriminant analysis (PLS-DA) also manifested that honey and syrup could be effectively distinguished. Discriminant analysis (DA) demonstrated that the discriminant accuracy of honey and syrup was 100%. Accordingly, all the results showed that the method of MPT-MS combined with chemometrics could identify honey and syrup rapidly. In brief, this method has the advantages such as fast analysis speed, accurate information extraction, high recognition accuracy and without sample pretreatment, and can be used for the identification of honey and main adulterated syrup.
- Microwave plasma torch,
- Mass spectrometry,
- Honey,
- Syrup
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1.
沈阳化工大学材料科学与工程学院沈阳 110142