CD-ROM SPECTROSCOPE : A SIMPLE AND INEXPENSIVE TOOL FOR CLASSROOM DEMONSTRATIONS ON CHEMICAL SPECTROSCOPY
CD-ROM SPECTROSCOPE : A SIMPLE AND INEXPENSIVE TOOL FOR CLASSROOM DEMONSTRATIONS ON CHEMICAL SPECTROSCOPY
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CD-ROM 光谱仪:用于化学光谱学课堂演示的简单且廉价的工具
DOI:
10.1021/ed075p1569
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发表时间:
1998
影响因子:
3
通讯作者:
K. Sone
中科院分区:
文献类型:
--
作者:
Fumitaka Wakabayashi;K. Hamada;K. Sone
Construction of a handy spectroscope using a compact disk (CD) or a CD-ROM and its application to the observation of emission and absorption spectra are described. Using this simple cardboard-made spectroscope, one can readily observe line emission spectra of fluorescent lamps, gas discharge tubes, etc. The spectroscope is also used to observe the absorption spectra of colored solutions; the absorption bands are observed as distinct black bands on the rainbow-colored continuous spectrum of an incandescent lamp. The results for the aqueous solution of potassium permanganate, the methanol and ethanol solutions of cobalt chloride, and Fe(III)-thiocyanate complex are described. These results clearly show the general rule that a colored solution absorbs the complementary color of the color of the solution. Thus, the CD-ROM spectroscope is a useful tool in primary and secondary schools to teach what color is and what spectra are. Furthermore, it can be used effectively in introductory courses in colleges and un...