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Citation: LÜ Weichao, SHEN Shuchang, WANG Chao. Determination of patulin in fruits and jam by solid phase extraction-ultra performance liquid chromatography[J]. Chinese Journal of Chromatography, ;2017, 35(11): 1160-1164. doi: 10.3724/SP.J.1123.2017.07005 shu

Determination of patulin in fruits and jam by solid phase extraction-ultra performance liquid chromatography

Analytical and Testing Center of Qiqihar University, Qiqihar 161006, China

Received Date: 4 July 2017

Fund Project: Special Research Project of Heilongjiang Province Education Office (Nos. 135209221, 135109206).

With magnesium silicate, silica gel, diatomite and calcium sulfate as raw materials, a new solid phase extraction column was prepared through a series of processes of grinding to ethanol homogenate, drying and packing into polypropylene tube. The sample was hydrolyzed by pectinase, extracted by acetonitrile and purified by solid phase extraction. The target compounds were separated on a C18 column (100 mm×2.1 mm, 1.8 μm), using 0.8% (v/v) tetrahydrofuran solution as mobile phase with a flow rate of 0.5 mL/min. The detection wavelength was 276 nm. The effect of pectinase on extraction yield and purification effect of solid-phase extraction column were investigated. The optimum chromatographic conditions were selected. There was a good linear relationship between the peak heights and the mass concentrations of patulin in the range of 0.1 to 10 mg/L with the correlation coefficient (R²) of 1. The limit of detection for this method was 10.22 μg/kg. The spiked recoveries of samples were 86.58%-94.84% with the relative standard deviations (RSDs) of 1.45%-2.28%. The results indicated that the self-made solid phase extraction column had a good purification efficiency, and the UPLC had a high separation efficiency. The method is simple, accurate and of great significance for the quality and safety control of fruit products.
- solid phase extraction (SPE),
- ultra performance liquid chromatography (UPLC),
- patulin (PAT),
- fruit products
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