The test tube is left with a lid on during chromatography to saturate the air inside with the solvent.
El tubo de ensayo se deja con tapa en la cromatografía para saturar el aire del tubo con el disolvente.
| Front | Why is the test tube left with a lid on in chromatography? |
|---|---|
| Back | - to saturate air in test tube with solvent |
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