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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 Spectrophotometer for nucleic acid measurements ： ウィキペディア英語版 Spectrophotometer for nucleic acid measurements A spectrophotometer for nucleic acid measurement is an analytical instrument used in molecular biology to determine the average concentrations of the nucleic acids DNA or RNA present in a mixture, as well as their purity. To date, there are two main approaches used by scientists to quantitate DNA or RNA. These are spectrophotometry and fluorescence tagging. ==Spectrophotometric analysis== One of the more commonly used practices to quantitate DNA or RNA is the use of spectrophotometric analysis using a spectrophotometer. Spectrophotometric analysis is based on the principles that nucleic acids absorb ultraviolet light in a specific pattern. In the case of DNA and RNA, a sample that is exposed to ultraviolet light at a wavelength of 260  nanometres (nm) will absorb that ultraviolet light. The resulting effect is that less light will strike the photodetector and this will produce a higher optical density (OD) 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「Spectrophotometer for nucleic acid measurements」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.