【摘要】： 在各類刑事、經(jīng)濟(jì)案件及民事糾紛中,常常會遇見偽造和篡改的文件,所以在司法鑒定和實(shí)際的案件偵破工作中,文件簽字的真?zhèn)闻c相對書寫時間的鑒定是很重要的內(nèi)容之一。而圓珠筆油墨中染料的檢測和油墨的分類又是書寫時間鑒定的前提基礎(chǔ)。目前,油墨檢測的方法很多,其中以色譜法應(yīng)用最廣。非水介質(zhì)毛細(xì)管電泳法是毛細(xì)管電泳方法中的一個重要分支,近幾年在藥物分析、手性化合物分離、環(huán)境檢測等方面應(yīng)用越來越廣,已引起國內(nèi)外科學(xué)工作者的高度重視。本論文嘗試使用非水介質(zhì)毛細(xì)管電泳法分析檢測圓珠筆油墨中的染料,并根據(jù)油墨中所含的染料種類不同將其進(jìn)行分類。 第一章介紹了非水介質(zhì)毛細(xì)管電泳法的研究進(jìn)展,簡述了非水介質(zhì)毛細(xì)管電泳法的發(fā)展歷程、基本理論和常見用途。 第二章介紹了非水介質(zhì)毛細(xì)管電泳法鑒別藍(lán)色圓珠筆油墨筆跡,根據(jù)筆墨中染料的種類,對收集的近一百種藍(lán)色圓珠筆進(jìn)行了分類。 第三章介紹了非水介質(zhì)毛細(xì)管電泳法鑒別黑色圓珠筆油墨筆跡,嘗試使用兩種緩沖體系,并分別研究了緩沖溶液的濃度、電壓、溫度、提取方法和取樣量對實(shí)驗(yàn)結(jié)果的影響。 第四章介紹了非水介質(zhì)毛細(xì)管電泳法和高效液相色譜法在油墨鑒定方面的異同點(diǎn)。 第五章總結(jié)了非水毛細(xì)管電泳在油墨分析中的研究狀況。
[Abstract]:In all kinds of criminal, economic cases and civil disputes, forgery and tampering are often encountered. Therefore, in the judicial identification and the actual case detection, the authenticity of the document signature and the identification of the relative writing time are one of the most important contents. And ballpoint pen ink dye detection and ink classification is the basis of writing time identification. At present, there are many methods of ink detection, among which chromatography is the most widely used. Non-aqueous capillary electrophoresis is an important branch of capillary electrophoresis. In recent years, it has been widely used in drug analysis, separation of chiral compounds and environmental detection, which has attracted great attention of scientists at home and abroad. This paper attempts to use non-aqueous medium capillary electrophoresis to analyze and detect dyes in ballpoint pen ink and classify them according to the types of dyes contained in the ink. In the first chapter, the progress of capillary electrophoresis in non-aqueous medium is introduced, and the development, basic theory and common application of capillary electrophoresis in non-aqueous medium are briefly described. The second chapter introduces the identification of blue ballpoint pen ink handwriting by non-aqueous medium capillary electrophoresis. According to the types of dyes in pen and ink, nearly 100 kinds of blue ballpoint pen are classified. In chapter 3, we introduce the method of non-aqueous capillary electrophoresis to identify the ink handwriting of black ballpoint pen, try to use two buffer systems, and study the effects of buffer concentration, voltage, temperature, extraction method and sampling amount on the experimental results. Chapter 4 introduces the similarities and differences between non-aqueous capillary electrophoresis and high-performance liquid chromatography in ink identification. Chapter 5 summarizes the research status of non-aqueous capillary electrophoresis in ink analysis.
【學(xué)位授予單位】：首都師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2008
【分類號】：D918.2

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本文編號：2140956