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溶解沉淀-气相色谱法测定聚氯乙烯食品保鲜膜中增塑剂己二酸二(2-乙基)己酯(DEHA)含量 被引量:18

Determination of DEHA in PVC cling film solution/precipitation technique and chromatography
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摘要 目的:研究开发了溶解沉淀前处理技术结合毛细管气相色谱法测定聚氯乙烯食品保鲜膜中己二酸二(2-乙基)己酯(DEHA)含量。方法:采用四氢呋喃作为溶剂,甲醇作为沉淀剂,可有效的将DEHA从聚氯乙烯薄膜中分离出来,然后采用非极性DB-1MS毛细管气相色谱柱进行分离,氢火焰离子化检测器检测,以气相色谱质谱进行确证。结果:DEHA在1.0~100.0mg/L范围内线性关系良好,相关系数o.999,方法回收率在87.8%-99.1%之间,相对标准偏差小于5%,检测限为0.1mg/L。结论:该方法操作简便,测定结果准确可靠,适合聚氯乙烯保鲜膜中DEHA含量的测定。 Objective: A new method was established for determination of di ( 2 - ethylhexyl) adipate (DEHA) in polyvinyl chloride (PVC) cling films by solution/precipitation techniques and gas chromatography. Methods:Tetrahydrofuran was used to solve the PVC films and methanol was added to produce PVC polymer precipitates. By doing this, DEHA can be extracted effectively from PVC films. The conditions of gas chromatography with hydrogen flame ionization detector were optimized and GC - MS was applied to give the affirmance for DEHA. Results:The linear range of the determination was 1.0 - 100. 0 mg/L with the detection limit of 0. 1 mg/L. The recovery range was 87.8% -99. 1% and the RSD was less than 5%. Conclusion:The developed method is simple, effective and suitable for the determination of DEHA in PVC cling films.
出处 《中国卫生检验杂志》 CAS 2006年第7期772-774,共3页 Chinese Journal of Health Laboratory Technology
关键词 气相色谱 DEHA 聚氯乙烯 食品保鲜膜 GC DEHA Polyvinyl chloride Cling films
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  • 1Loftus NJ, Woolen BH, Steel GT, et al. An assessment of the dietary uptake of di -2 - (ethylhexyl) adipate(DEHA) in a limited population study[J]. Food Chem Toxic, 1994, 32(1) :1 -5.
  • 22002/72/EC. Relating to plastic materials and articles intended to come into contact with foodstuffs[S].
  • 3Nerin C, Gancedo P, Cacho J. Determination of bis (2 - ethylhexyl )adipate in food products[J]. J Agric Food Chem, 1992,40(10) :1833- 1835.
  • 4Goulas AE, Anifantaki KI, Kokioulis DG,et al. Migration of di - (2 -ethylhexylexyl) adipate plasticizer from food - grade polyvinyl chloride film into hard and soft cheeses[J]. J Dairy Sci,2000,83 (8) :1712 -1718.
  • 5Cano JM, Marin ML, Sanchez A, et al. Determination of adipate plasticizers in poly vinyl chloride by microwave - assisted extraction [J]. J Chromatogr A, 2002, 963( 1 -2) :401 -409.
  • 6王成云,龚丽雯,龚敏红.PVC食品包装膜中增塑剂DEHA的测定[J].深圳职业技术学院学报,2004,3(3):44-46. 被引量:14

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