气相色谱法检验蓝黑墨水字迹色痕

The Examination of Blue Black Ink Handwriting Color Marks by GC

本文利用气相色谱法对15种不同品牌、型号及批次的蓝黑墨水进行了检测。结果显示:根据溶剂种类不同,可以将15种蓝黑墨水分为八大类,有助于可疑字迹的否定性检验;根据溶剂的相对含量高低,可以进一步区分同一品牌不同型号或同一型号不同批次的墨水,为蓝黑墨水字迹色痕的进一步研究提供参考依据。

15 kinds of blue black inks of different brands,models and batches were detected by gas chromatography.The results show that the inks can be divided into eight categories according to the types of solvents,which is helpful to the negative test of suspicious handwriting.According to the relative content of solvent,different types of inks of the same brand or different batches of the same model can be further distinguished,which provide a reference basis for the further study of blue black ink;handwriting color marks.