Simultaneous determination of 13 kinds of organic solvent residues in plastic laminated films and pouches for packaging by gas chromatography
An analytical method for the determination of 13 kinds of organic solvent residues in plastic laminated films and pouches for packaging by gas chromatography was established.The Rtx-5 capillary column(50 m×0.32 mm,0.5 μm)and hydrogen flame ionization detector were selected,13 kinds of organic solvents were separated from each other well within 15 min.The method has the good linearity in the range of 0.03～0.6 mg/m2(3-methylpentane is in the range of 0.015～0.3 mg/m2)(r＞0.998),the limits of detection are 0.001～0.005 mg/m2,RSD(n=7)are in the range of 1.04％～7.55％and the recoveries are 95.4％～110.1％.During the experiments,the organic solvent residues in 6 kinds of plastic packaging materials were analyzed.This is a fast and accurate way with good reproducibility and can fully meet the determining of 13 kinds of organic solvent residues in plastic laminated films and pouches for packaging.
gas chromatographyorganic solvent residueplastic packing material
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