采用固相微萃取和气-质联用技术(GC-MS)对干洗衣物中氯代烯烃的残留和释放进行了分析测定.干洗过程使用的有害物质包括四氯乙烯(PCE)、三氯乙烯(TCE)及少量的三氯乙烷,这些挥发性有机物已列入许多国家和地区优先控制的污染物指标.该方法参照欧洲生态纺织品标准100对目标化合物的限量控制,以加标的标准贴衬为样品基质,将样品浸渍在含5%(体积分数)甲醇的饱和NaCl溶液中,于(40±1) ℃水浴中超声处理10 min后,再将样液用100 μm PDMS固相微萃取纤维顶空提取,然后进行GC-MS测定.目标化合物在线性范围内(PCE和TCE为0.005 mg/kg～5.000 mg/kg,三氯乙烷为0.012 mg/kg～1.200 mg/kg)满足衣物的干洗剂残留安全评定要求,方法的最小检测量(LOQ)低于0.005 mg/kg,加标回收率为90.6%～108.7%.
参考文献
| [1] | International Institution of Sustainable Development (IISD). Global Green Standard: ISO 14000 and Sustainable Development. Beijing: China Environmental Science Press, 1997. 19国际可持续发展研究所. 全球绿色标准: ISO 14000与可持续发展. 北京: 中国环境科学出版社, 1997. 19 |
| [2] | Zarrilli S. Eco-labeling and International Trade. New York: St. Martins Press, Inc., 1997. 328 |
| [3] | Dry Cleaning Institute of Australia (DCIA). Code of Practice and Training Program for Safe Handling of Perchloroethylene Solvent in the Dry Cleaning Plant. Melbourne(Australia): DCIA, 1996. 12 |
| [4] | Air Pollution Control Division (APCD). Inspector's Guidance Manual: Perchloroethylene, Dry Cleaning. Denver(USA): Stationary Sources Branch, APCD, 1998. 61 |
| [5] | Ludwig H R, Meister M V, Roberts D R, Cox C. Am Ind Hyg Assoc J, 1983, 44(8): 600 |
| [6] | ZHONG Gui-pu. Chinese Journal of Industrial Hygiene and Occupational Diseases, 2001, 19(2): 94钟桂普. 中华劳动卫生职业病杂志, 2001, 19(2): 94 |
| [7] | International Standard Organization (ISO). ISO 8230:Safety Requirements for Dry-Cleaning Machines Using Perchloroethylene. 1997 ed. London: ISO, 1997. 3 |
| [8] | DU Hong, KONG Yu-mei, WANG Ping. The Management and Technique of Environmental Monitoring, 2000, 12(6): 33杜宏, 孔玉梅, 王平. 环境监测管理与技术, 2000, 12(6): 33 |
| [9] | Laboratory Office of Research and Development. EPA525.1: Determination of Organic Compounds in Drinking Water by Liquid-Solid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry. Cincinnati(USA): Environmental Protection Agency (EPA), 1998. 8 |
| [10] | Jame K J, Stack M A. Fresenius' J Anal Chem, 1997, 358(7-8): 833 |
| [11] | Ai J. Anal Chem, 1997, 69(16): 3260 |
| [12] | International Association for Research and Testing in the Field Ecology. ko-Tex Standard 100 (2000 ed). Vienna(Austria): IARTFE, 2000. 7 |
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