문서상에 기재된 흑색젤펜 잉크 중 몇 가지 첨가제의 GC/MS 분석
GC/MS Analysis of Some Additives in Black Gel Pen Inks Deposited on Paper
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초록
시간이 경과함에 따라 문서상에 기재된 흑색 젤펜 잉크 중에서 몇 가지 첨가제 화합물들의변화 과정을 알아보기 위하여 추출용매와 그 조성을 탐색하고 추출된 첨가제의 성분 변화를 GC/MS 방법으 로 분석하였다. 가장 적합한 추출용매는 methanol이었으며 GC/MS의피크 면적의 변화로부터 16종의첨 가제들이 확인되었다. 통계 분석결과, 한국과 일본은 비슷한 구으로 분류되어 식별이 어려웠지만 독일은 6종의화합물(5, 6, 11 및 14-16)이 확연하게 분리 확인되었다. 특히, 6종(1-6)의화합물들은 0-7개월 사이 에서 가장 급격하게 감소하였으며 그 이후부터48개월까지는 매우 완만하게 감소하는 경향을 나타내었 다. 또한, 첨가제의 MS 스펙트라에 기초한 분열 메카니즘으로부터 시간경과에 따라 잔존하는 화합물의 종류를 예상하고 파악할 수 있었다.
Abstract
Lines drawn with five different black gel pen inks on paper were analyzed via GC/MS to identify additives unique to each ink type and to determine the age of the ink lines on paper. The extracting solvent for the black gel pen inks and the compositional changes of the black gel pen inks were investigated. Methanol was found to be the best extracting solvent and sixteen additive components were identified based on the number of observed peaks and changes in the peak area in the GC/MS chromatograms. After statistical analysis of their components, the black gel pen inks made in South Korea and Japan belonged to the same group and could not be distinguished from each other. However, black gel pen inks made in Germany contained six distinguishable compounds (5, 6, 11 and 14-16) which belonged to a different group. The amounts of six compounds (1-6) decreased rapidly especially from month 0 to the 7th month and then decreased slower down to the 48th month. Also determined from the study of the defragmentation pattern of mass spectroscopy with additives, the timedependent changing of additives and the identification of remaining compounds could be performed.
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