Synthesis of Azo Dyes and Generation of Dot Matrix Using Thin-Layer Chromatography

Synthesis of Azo Dyes and Generation of Dot Matrix Using Thin-Layer Chromatography
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使用薄层色谱法合成偶氮染料并生成点阵

DOI:
10.1021/acs.jchemed.2c00912
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发表时间:
2023
影响因子:
3
通讯作者:
Ayaki Miyahara
Ayaki Miyahara
中科院分区:
化学2区
文献类型:
--
作者:
Masatada Matsuoka;Jun Koga;Ayaki Miyahara

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薄层色谱涉及染料沿着二氧化硅涂层板的移动,用于观察化学反应的进程并分离混合物。我们利用这一现象设计了一种生成点状数字(点阵)形状图案的方法。我们准备了生成点阵所需的偶氮染料,并使用由两种芳香胺和三种酚合成的三种偶氮染料成功生成了数字0至9的点阵图像。所有板均在己烷:丙酮 = 5:1 溶剂中展开。这项研究的优点是拉丝所需的所有偶氮染料都可以用普通原料合成。染料合成和点阵生成都可以作为大学一年级学生实践工作的一部分进行。或者,可以使用教师预先准备的染料进行实验,并鼓励高中生考虑在每条泳道上点上哪种染料溶液,以通过点阵绘制他们想要的数字。
Thin-layer chromatography, which involves the movement of dyes along a silica-coated plate, is used to observe the progress of chemical reactions and to separate mixtures. We took advantage of this phenomenon to devise a method for generating patterns in the shape of numbers with dots (dot matrix). We prepared the azo dyes necessary for generating the dot matrix and successfully generated dot matrix images of numbers 0 to 9 using three azo dyes synthesized from two types of aromatic amines and three types of phenols. All plates were developed in a hexane:acetone = 5:1 solvent. The advantage of this study is that all azo dyes necessary for drawing can be synthesized from common raw materials. Both the dye synthesis and dot matrix generation can be carried out as part of practical work intended for first-year university students. Alternatively, the experiments could be conducted using the dyes prepared in advance by the instructor, and high school students could be encouraged to consider which dye solution to spot on each lane to draw their desired number by dot matrix.
色谱法的基本知识:丰富多彩的演示。
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