利用甲醇提取物对24种不同厂家不同牌号的复印纸进行了鉴别研究。根据色谱峰的个数、保留时间和峰高比例的不同对复印纸的种类进行了鉴别,并考查了方法的重现性,结果表明利用甲醇提取物鉴别复印纸的方法,重现性好,所需样品量少,操作简便,结果准确可靠,适用于法庭科学中涉案纸张的鉴别。 Methanol extract of 24 different manufacturers of different grades of copy paper were identified. The types of photocopying paper were identified according to the number of chromatographic peaks, retention time and peak height ratio, and the reproducibility of the method was examined. The results show that the method of identifying the photocopy paper by methanol extract has good reproducibility, The required sample volume is small, easy to operate, the results are accurate and reliable, suitable for forensic science involved in the identification of paper.