Determination of 46 Residual Solvents in Surface Layer of Bamboo and Wood Cutting Boards by Headspace Gas Chromatography-mass Spectrometry

PAN Jintao; LIU Deyun; HE Guoshan; QIU Xuqian; CHEN Yiguang; XIONG Xiaoting; LI Huiyong; LING Guangyao; LI Zerong

doi:10.19554/j.cnki.1001-3563.2025.19.028

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (19) : 268-274. DOI: 10.19554/j.cnki.1001-3563.2025.19.028

Determination of 46 Residual Solvents in Surface Layer of Bamboo and Wood Cutting Boards by Headspace Gas Chromatography-mass Spectrometry

PAN Jintao, LIU Deyun, HE Guoshan, QIU Xuqian, CHEN Yiguang, XIONG Xiaoting, LI Huiyong^*, LING Guangyao, LI Zerong

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Abstract

The work aims to establish a headspace gas chromatography-mass spectrometry method for determining the residual amounts of 46 solvents in surface layer of bamboo and wood cutting boards, to provide technical support for the quality and safety monitoring of solvent residues in surface layer of bamboo and wood cutting board products. A certain amount of surface samples were scraped from the cutting board and the headspace method was adopted for sample injection. An HP-INNOWAX capillary chromatography column was used for separation and the selective ion monitoring (SIM) mode under an electron bombardment source (EI) was used for detection. Then, the external standard method was used for quantification. Under the optimized conditions, all 46 solvents were well separated. The 46 solvents showed good linearity in the range of 0.2-20 μg, with a correlation coefficient r² greater than 0.996. The average recoveries at three spiked levels ranged from 86% to 109%, the relative standard deviation ranged from 1.4% to 8.4%, and the detection limits ranged from 0.007 mg/kg to 0.097 mg/kg. This method is accurate, reliable and highly sensitive, with the detection limit and precision conforming to the analytical requirements. It is suitable for the determination of residual amounts of 46 solvents in surface layer of bamboo and wood cutting boards.

Key words

solvent residue / surface layer of bamboo and wood cutting boards / headspace gas chromatography-mass spectrometry

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PAN Jintao, LIU Deyun, HE Guoshan, QIU Xuqian, CHEN Yiguang, XIONG Xiaoting, LI Huiyong, LING Guangyao, LI Zerong. Determination of 46 Residual Solvents in Surface Layer of Bamboo and Wood Cutting Boards by Headspace Gas Chromatography-mass Spectrometry[J]. Packaging Engineering. 2025, 46(19): 268-274 https://doi.org/10.19554/j.cnki.1001-3563.2025.19.028

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