Application of the Lambert-Beer legal concept in learning spectroscopy UV-Vis with simple spectrophotometers
نویسندگان
چکیده
Education 4.0 encourages the development of learning that integrates technology in it. Thereby, it is important to guide students be more creative and innovative. Electronic devices are quite expensive for SMA / SMK level, so teach concepts practice Lambert-Beer law very difficult. Therefore, an alternative needed teaching concept spectroscopy by making a simple spectrophotometer. The spectrophotometer made detect solutions visible area, then data analyzed capturing light from samples using smartphone camera application on Google Play Store. can used determine absorbance value solution, calibration curve between vs. concentration. This study uses experimental method with product where instrument has been tested eligibility based previous research, reading Store validated Spectro UV-Vis (with some specifications such as source light, monochromator, diffraction grating, direct system). It measure concentration standard solution Fe (II) -phenanthroline complex at pH acetate buffer wavelength 510 nm. results measurements successively give R2 = 0.9985 0.9983. Based obtained, concluded Law because gives significantly same any
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ژورنال
عنوان ژورنال: Nucleation and Atmospheric Aerosols
سال: 2021
ISSN: ['0094-243X', '1551-7616', '1935-0465']
DOI: https://doi.org/10.1063/5.0041895