Gas Chromatographic/Mass Spectrometric Determination of α-Methylstyrene in Styrene-Based Polymers and Food Simulants
Keyword(s):
Abstract A selected ion monitoring method is described for the analysis of styrene (St)-based polymers for a-methylstyrene (α- MSt) and for determining the level of α-MSt migration from St-based sheets Into 4 food simulants. The polymers are dissolved in dlchloromethane; α-MSt Is determined by direct Injection of the polymer solutions. α-MSt migration from St-based sheet to water, 4% acetic acid, 20% ethanol, and n-heptane was measured by gas chromatography/mass spectrometry, using multiple ion monitoring of Ions at mix 118,78, and 91. α-MSt can be quantltated at levels as low as 10 μ/g in the polymer and 0.01 μ/g In the food simulants. Recoveries were 83-113% from St-based sheets and 90-99% from food simulants, respectively.
1993 ◽
Vol 76
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pp. 760-764
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1996 ◽
Vol 685
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pp. 59-66
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1984 ◽
Vol 307
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1981 ◽
Vol 8
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pp. 589-592
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1989 ◽
Vol 72
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pp. 349-354
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1972 ◽
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1990 ◽
Vol 73
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pp. 886-892
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