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【Daily Question】Chemical Analysis Edition, May 1, 2021

2021-05-02View Original

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This post was last edited by zjp on 2021-5-2 07:42. Multiple-choice question: Which of the following operations are correct? (). A. Touch the rough surface of the cuvette with your hand. B. Conduct measurements immediately after turning on the visible-ultraviolet spectrophotometer. C. When determining the anthraquinone content, it is necessary to turn on the deuterium lamp of the spectrophotometer. D. When measuring the color intensity of liquid chemicals, compare the colors along the axis of the cuvette. Answers: ACD

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