Separation Example
Sample:
1.51g of sample was dissolved in 20% ethyl acetate/hexanes, which
consisted of 2-Chloro-5-nitropyridine (128.6 mg),
2,3-Dimethoxybenzaldehyde (578.6 mg) and 3,4-dimethoxybenzaldehyde
(803.6 mg). Rf values were 0.57, 0.47 and 0.25 for the respective
compounds. TLC was performed in 20% ethyl acetate/80% hexanes.
Separated with a linear gradient of 3% ethyl acetate/97% hexanes to 20%
ethyl acetate/80% hexanes over a period of 35 minutes. Fractions of 40
ml were collected.
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