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http://dx.doi.org/10.5806/AST.2008.21.4.284

Determination of halogen elements in plastics by using combustion ion chromatography  

Jung, Jae Hak (Analytical Technology Team, LG Display)
Kim, Hyo Kyoung (Analytical Technology Team, LG Display)
Lee, Yang Hyoung (Analytical Technology Team, LG Display)
Lee, Lim Soo (Analytical Technology Team, LG Display)
Shin, Jong Keun (Analytical Technology Team, LG Display)
Lee, Sang Hak (Department of Sensor and Display, Kyungpook National University)
Publication Information
Analytical Science and Technology / v.21, no.4, 2008 , pp. 284-295 More about this Journal
Abstract
For plastics samples, a method using combustion ion chromatography was selected as a method for rapid low-cost analysis to test whether hazardous substances are contained or not. Using combustion ion chromatography, a verification test for F, Cl and Br compounds generated a linear calibration curve with a correlation coefficient of $r^2$ = 0.999~1.000 in the calibration range from 0.5 to 4.0 mg/kg. The detection limits were found to be 0.005~0.024 mg/kg and quantitative limits were found to be 0.014~0.073 mg/kg. The recoveries of combustion ion chromatography using certified reference material (CRM) were found to be 95.5~104.9%. Based on these results, a proficiency test was conducted together with several laboratories in and out of the country, to make comparative analysis of the results from each laboratory. As a result, the data supported the use of combustion ion chromatography as an effective analysis method to deal with regulations for halogen-free electronic products and for other hazardous substances in the electronic products.
Keywords
BFRs; PFCs; RoHS; WEEE; PoHS; PFOS; Proficiency testing;
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