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罗丹明6G

罗丹明6G
别名 Rhodamine 590, R6G, Rh6G, C.I. Pigment Red 81, C.I. Pigment Red 169, Basic Rhodamine Yellow , C.I. 45160
识别
CAS号 989-38-8  checkY
ChemSpider 16736263
KEGG C11177
性质
化学式 C28H31N2O3Cl
摩尔质量 479.02 g/mol g·mol⁻¹
外观 暗红紫色、棕色或黑色晶体
密度 1.26 g/cm3
溶解性 20 g/l (25 °C)
溶解性甲醇 400 g/L
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

罗丹明6G是具高萤光性质的罗丹明家族染料之一。其经常被用做观察水中流速、水流方向和传递的追踪染剂。因为罗丹明类的染料具有萤光性质,故以不昂贵的方式也就是萤光计便能简易侦测。罗丹明类染料已被广泛运用在生物科技中,例如萤光显微镜流式细胞术、萤光相关光谱和酵素结合免疫吸附分析法ELISA)。

罗丹明6G盐酸盐的粉末。其溶于甲醇经绿光激光激发会放出黄色萤光。
以罗丹明6G为基础的染料激光。图中管中充满的橘色流体是染料溶液。

罗丹明6G也被用作激光染料,或其中的介质。罗丹明6G具有很高的光稳定性,高萤光亮子产率(0.95[1]),又低成本。且其最大放光波长很接近其最大吸收值(约530纳米),罗丹明6G放光波长范围落在555到585纳米,最大强度约落在566纳米。[2]

罗丹明6G以三种常见的形式存在。其盐酸盐是红棕色的粉末,化学式可表示为C27H29ClN2O3。这种形式的罗丹明6G易溶于许多溶剂,除了不锈钢外,对大部分金属都具有很强的腐蚀性。其他形式较不易溶于溶剂,但腐蚀性也较弱。罗丹明6G的高氯酸盐(C27H29ClN2O7)外观是红色晶体,而罗丹明6G的四氟硼酸盐(C27H29BF4N2O3)则是栗色晶体。[3]

溶解度

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丁醇 (40 g/l),乙醇 (80),甲醇 (400),丙醇 (15),乙二醇 (50),二甘醇 ( 100),三甘醇 (100),异丙醇 (15),二乙醇单乙醚 (25),二乙醇单甲醚 (50),一缩二丙二醇 (30),聚乙二醇 (20)。[4]

参见

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参考资料

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  1. ^ R. F. Kubin and A. N. Fletcher, "Fluorescence quantum yields of some rhodamine dyes."
  2. ^ Rhodamine 6G. [2016-11-06]. (原始内容存档于2018-01-02). 
  3. ^ 存档副本 (PDF). [2009-01-13]. (原始内容存档 (PDF)于2009-12-29). 
  4. ^ RHODAMINE 6G. [2016-11-06]. (原始内容存档于2010-01-03). 
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罗丹明6G
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