절연유 중 PCBs의 신속분석법 개발

• Published in: 환경분석과 독성보건, 14(2) pp. 63 - 68
• Main Authors: 김민기, 이왕덕, 서용찬
• Format: Journal Article
• Language: Korean
• Published: 한국환경분석학회 01.06.2011
• Subjects: 화학
• ISSN: 2672-0175; 2672-1139

The purpose of this study was to develop a faster analysis method of PCBs in transformer oil and to compare this to the Korean official method. The Korean official method is composed of 4 steps; alkaline digestion, sulfuric acid extraction, clean-up with silica-gel column, and concentration by nitrogen blowing. On the other hand, the proposed fast PCBs analysis method is composed of simpler steps; one-step column separation (Rapiana)and the following concentration by nitrogen blowing. Both methods were compared by analyzing same samples including CRMs. GC/ECD equipped with dual column was used for PCBs analysis. PCB-189 and PCB-209 were used as surrogates and TCMX (tetrachloroxylene) was used as internal standard. Surrogate recovery (75-120%) obtained by the proposed fast analysis method turned out to be better than that of the Korean official method (63-85%). The fast PCBs analysis method is faster than the Korean official method (3hours vs 20 hours) and also can save labor and analysis cost. KCI Citation Count: 1