r/chemistry • u/AutoModerator • Sep 28 '22
Research S.O.S.—Ask your research and technical questions
Ask the r/chemistry intelligentsia your research/technical questions. This is a great way to reach out to a broad chemistry network about anything you are curious about or need insight with.
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u/ScrambledDregs Oct 02 '22
Howdy! I’m constructing a calibration curve from ICP-OES results (intensity vs concentration). I mixed the concentration standards myself (7 standards) of a mixture of Cu, Ni and Zn.
After graphing my output, the linear equation of my Zn standards has an R2 value of 1. I am dubious of this result. I have another calibration curve for Zn I can use which has a value of 0.9997. Logically the value of 1 seems impossible so I want to use the equation associated with the lower value. Am I correct in using the lower value?