Tom Kuntzleman
• Wayne State University Assistant Professor of Teaching - Chemistry
ChemEd X Associate Editor, Science experimenter, chemical educator, entropy generator, I have taught science at all levels from Kindergarten through upper division undergraduate. Member of ACS, AACT.
Hi Juliana, thank you for your question. I'm not entirely certain how to answer your question, without trying out the app that you used. Did your app report R, G, and B values separately? What color solutions were you using? I would suggest trying out what you propose above (adding together RGB values) for each standard and then plotting A values vs. concentration. If you get a straight line plot when doing this, then your proposal should work.
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Comment on Use Your Smartphone as an "Absorption Spectrophotometer"
In reply to In need of help by Juliana Noreus
Give your proposal a try
Hi Juliana, thank you for your question. I'm not entirely certain how to answer your question, without trying out the app that you used. Did your app report R, G, and B values separately? What color solutions were you using? I would suggest trying out what you propose above (adding together RGB values) for each standard and then plotting A values vs. concentration. If you get a straight line plot when doing this, then your proposal should work.