Dating the writing age of black roller and gel inks by gas chromatography and UV-vis spectrophotometer

作者：Xu, Yuanyuan^*; Wang, Jinghan; Yao, Lijuan

来源：Forensic Science International, 2006, 162(1-3): 140-143.

DOI：10.1016/j.forsciint.2006.06.011

• roller inks
• gel inks
• relative age
• absolute age
• dating
• gas chromatography
• UV-vis spectrophotometer

The relative and absolute age of roller and gel ink entries determined by gas chromatography (GC) and UV-vis methods are presented in this paper. The relative age of ink entries is concluded by the comparison of solvent amount between questioned and known dated entries. Absolute age of ink entries is estimated through the changing ratio of solvent components between heated and unheated samples without known samples for comparison. The methods are accurate and reliable.

• 出版日期2006-10-16
• 单位广东警官学院; 中国刑事警察学院