Development of Low-Cost Spectrophotometry Laboratory Practice Based on the Digital Image for Analytical Chemistry Subject
M. Lutfi Firdaus, Deni Parlindungan, Agus Sundaryono, Muhammad Farid, Lena Rahmidar, Maidartati Maidartati, Hermansyah Amir
M. Lutfi Firdaus
Available Online April 2019.
- https://doi.org/10.2991/aes-18.2019.37How to use a DOI?
- laboratory practice; digital image; silver nanoparticle; spectrophotometry; mercury
- A module for laboratory practice in quantitative analytical chemistry subject has been developed. The method uses digital image colorimetry as a basis for low-cost spectrophotometry analysis. Reduction-oxidation reaction of silver nanoparticle and mercury (II) ion was used as a case study for the colorimetric experiment. The yellow color of silver nanoparticle was faded linearly to colorless with the addition of mercury ion as an analyte. The color change was then recorded with a digital camera and processed through computer software to extract the color information in the form of Red, Green and Blue. The module of laboratory practice was then applied to students in chemical education study program. The gain of the learning process was measured using pre-test and post-test. The results of the study indicate that the students were able to understand the concept of spectrophotometry by using the developed module of digital image colorimetry. Therefore, we conclude that laboratory practice of digital image colorimetry is applicable as an alternative to the traditional spectrophotometry.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - M. Lutfi Firdaus AU - Deni Parlindungan AU - Agus Sundaryono AU - Muhammad Farid AU - Lena Rahmidar AU - Maidartati Maidartati AU - Hermansyah Amir PY - 2019/04 DA - 2019/04 TI - Development of Low-Cost Spectrophotometry Laboratory Practice Based on the Digital Image for Analytical Chemistry Subject BT - 3rd Asian Education Symposium (AES 2018) PB - Atlantis Press SP - 156 EP - 159 SN - 2352-5398 UR - https://doi.org/10.2991/aes-18.2019.37 DO - https://doi.org/10.2991/aes-18.2019.37 ID - Firdaus2019/04 ER -