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★ 小木蟲: 金幣+0.5, 給個(gè)紅包,謝謝回帖
要解決此問題,需要查下兩方面信息:
1,驗(yàn)鈔機(jī)參數(shù):
常用檢驗(yàn)鈔票、支票、發(fā)票等票據(jù)使用發(fā)射波長365nm的紫外燈管。(醫(yī)院常用的紫外燈稱紫外線消毒燈,它的燈管紫外線波長為254nm。)
2,EB的參數(shù) :
As with most fluorescent compounds, ethidium bromide is aromatic. Its core heterocyclic moiety is generically known as a phenanthridine, an isomer of which is the fluorescent dye acridine. Absorption maxima of EtBr in aqueous solution are at 210 nm and 285 nm, which correspond to ultraviolet light. As a result of this excitation, EtBr emits orange light with wavelength 605 nm.[2][3As with most fluorescent compounds, ethidium bromide is aromatic. Its core heterocyclic moiety is generically known as a phenanthridine, an isomer of which is the fluorescent dye acridine. Absorption maxima of EtBr in aqueous solution are at 210 nm and 285 nm, which correspond to ultraviolet light. As a result of this excitation, EtBr emits orange light with wavelength 605 nm.[2][3詳細(xì)見維基百科。有激發(fā)波長和發(fā)射波長示意圖?刹榈365nm下信號(hào)相當(dāng)弱幾乎不發(fā)光,http://en.m.wikipedia.org/wiki/Ethidium_bromide。
[ 發(fā)自小木蟲客戶端 ] |
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