【Daily Question】Chemical Analysis Edition, 4/30/2021
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This post was last edited by zjp on 2021-4-30 09:48. Multiple-choice question: In visible light spectrophotometry, when both the sample solution and the color-developing reagent are colored, the reference solution that cannot be used is ( ). A. Distilled water B. Test solution without a color-developing agent C. Test solution with only a color-developing agent D. Test solution obtained by first masking the component to be analyzed to prevent it from reacting with the color-developing agent, and then adding the color-developing agent and other reagents according to the standard test procedure. Answers: A, B, C
A. Distilled water B. Test solution without a color-developing agent C. Test solution with only a color-developing agent