本文選題：法庭科學(xué) + 可疑文件�。� 參考：《首都師范大學(xué)》2007年碩士論文

【摘要】： 隨著社會的發(fā)展，許多刑事、經(jīng)濟(jì)案件及民事糾紛中經(jīng)常涉及到圓珠筆字跡的鑒別和書寫時(shí)間的確定，因此圓珠筆油墨的鑒定在法庭科學(xué)中倍受關(guān)注。而圓珠筆種類的鑒定為書寫時(shí)間的鑒定奠定了基礎(chǔ)。尤以色譜法對圓珠筆中油墨種類的鑒別具有重要的現(xiàn)實(shí)意義，，本論文分四部分如下： 第一章分析圓珠筆油墨鑒定的意義及國內(nèi)外的發(fā)展和應(yīng)用，包括薄層色譜法、氣相色譜法和毛細(xì)管電泳法；介紹了圓珠筆油墨的組成及色譜法鑒定的理論依據(jù)。 第二章研究了毛細(xì)管電泳法鑒別鑒別藍(lán)色圓珠筆油墨的種類，選擇了合適的提取劑和緩沖溶液，對市售的83種不同國家和地區(qū)生產(chǎn)的藍(lán)色圓珠筆油墨字跡進(jìn)行分析，根據(jù)圓珠筆中所含的不同類的染料將其分為分十大類。 第三章研究了毛細(xì)管電泳法鑒別黑色圓珠筆油墨的種類，對市售的46種黑色圓珠筆油墨進(jìn)行分析。根據(jù)每只筆染料的含量的不同進(jìn)一步分析，最終將每類筆中的每只筆都鑒別出來。 第四章毛細(xì)管電泳法鑒別紅色圓珠筆油墨的種類，按照所含染料的不同，將紅色圓珠筆分為五類。
[Abstract]:With the development of society, many criminal, economic cases and civil disputes often involve the identification of ballpoint pen handwriting and the determination of writing time, so the identification of ballpoint pen ink has attracted much attention in court science. The identification of the type of ballpoint pen laid a foundation for the identification of writing time. In particular, chromatography is of great practical significance in the identification of ink types in ballpoint pens. This paper is divided into four parts as follows: The first chapter analyzes the significance of ballpoint pen ink identification and its development and application at home and abroad, including thin-layer chromatography, gas chromatography and capillary electrophoresis, and introduces the composition of ballpoint pen ink and the theoretical basis of chromatographic identification. In the second chapter, we study the identification of blue ballpoint pen ink by capillary electrophoresis, select the appropriate extractant and buffer solution, and analyze the blue ballpoint pen ink handwriting produced in 83 different countries and regions. According to the different types of dyes contained in ballpoint pen, it is divided into ten categories. In chapter 3, the classification of black ballpoint pen ink by capillary electrophoresis was studied, and 46 kinds of black ballpoint pen ink sold on the market were analyzed. Each pen is identified by further analysis of the dye content of each pen. In chapter 4, the red ballpoint pen ink was identified by capillary electrophoresis, and the red ballpoint pen was divided into five categories according to the dyestuff.
【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】：2007
【分類號】：D918.2

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王桂s

本文編號：1872412