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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Trace Metal Detection Test ： ウィキペディア英語版 Trace Metal Detection Test The Trace Metal Detection Test (TMDT) or Technique was developed during the Vietnam War in the 1960s to identify people who may have been carrying firearms against their skin. A 0.2% solution of 8-hydroxyquinoline in isopropanol sprayed on the skin and illuminated with shortwave ultraviolet (UV) light after several minutes reveals a pattern and type of metal based on trace amounts of metal transferred to the skin that are invisible under normal lighting.〔Ultraviolet Detection of Metal Traces - Trace Metal Detection Technique - Final Report;J.O.Rhoads; Minnesota Dept of Public Safety State Highway Patrol; 1971; http://www.ncjrs.gov/app/publications/abstract.aspx?ID=34019〕 The technique was later adopted by police in the United States to help determine if a person had carried a firearm. In a California crime an automatic handgun carried in the waistband of a criminal reportedly produced an impression of the weapon's serial number.〔Honolulu CSI: An Introduction to Forensic Science and Criminal Investigation; p. 39; Gary A. Dias and Robbie Dingeman, cy 2004, Bess Press, Inc.〕 Presence and persistence of a detectable residue depends primarily on the amount of perspiration, length of contact, and time since exposure. A few minutes of exposure can leave detectable residue and the result can remain for up to forty-eight hours.〔"Gunshot Injuries" by Vincent J.M. DiMaio from the Elsevier Series in Practical Aspects of Criminal and Forensic Investigations,Elsevier Publishing Company (October 1989); pp 267-283.〕 Preservation of the results is done with black-and-white and color photography. Use of a shortwave ultraviolet filter over the camera flash can be used to record the results, although a steady source of UV is preferred.〔Trace Metal Detection Technique (TMDT) - A Report Outlining a Procedure for Photographing Results in Color, and Some Factors Influencing the Results in Controlled Laboratory Tests; J.M.Stevens; H.Messler; Journal of Forensic Sciences; Volume:19 Issue: 3: JULY 1974; Pages:496-503 〕 In either case a darkened area is needed for screening purposes. Another reagent, 0.5 percent 2-nitroso-1-naphthol in acetone, eliminated the need for a UV light but is limited to a four-hour-window versus the forty-eight for 8-hydroxyquinoline.〔Study of the Use of 2-Nitroso-1-Naphthol as a Trace Metal Detection Reagent, C W Kokocinski; D J Brundage; J D Nicol; 1980; http://www.ncjrs.gov/app/publications/abstract.aspx?ID=73257〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Trace Metal Detection Test」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.