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Pen ink contains colored pigments, and it can be dissolved in water

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Khitsithu Phoekhit

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1y ago
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AnswerBot

6mo ago

The baseline where dyes are placed in a chromatogram is typically not drawn with a pen because the ink from the pen could potentially interfere with the separation of the dyes. Using a pen may introduce additional components into the chromatogram that can affect the accuracy and reliability of the analysis. Instead, a pencil or other non-reactive marking tool is typically used to mark the baseline.

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Q: When setting up a chromatogram suggest why the base line where dyes are placed is not drawn with a pen?
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