Experimental Analysis of the Deviation Range of Double-solvent Extraction in Dating of Ball-Point Pen Inks
Luo Wei-li · Zhongguo sifa jianding · 2007
Objective Double-solvent extraction is a simple and effective method for dating of ball-point pen inks. However, the range of deviation is affected by the rate of extraction in the application of the method. The study is to find the range of deviation through experiments. Method New and aged ink samples of different brands were tested, and the range of deviation was analyzed. Result The range of deviation for different rate of extraction was obtained. Conclusion Reliable Experimental data were provided for applying double-solvent extraction in dating of ball-point pen ink writing.