Bismuth Subnitrate
Two solutions are necessary: (a) potassium iodide (40 g) in water (100 mL), (b) bismuth subnitrate (1.7 g) in 20% acetic acid (100 mL). Immediately before use, the first solution (5 mL) is mixed with the second solution (20 mL) and diluted with water (75 mL). When the plate is sprayed with the mixture, choline-containing lipids appear within a ...
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