Then make the isolate contamination (Clean up) using the NH2 and then evaporating methanol dichloromethane removed in 1% to almost dry, and then adjust the volume as the methanol and water in the ratio 1:1.
And extracting impurities (Clean up) using NH2 then evaporates 1% methanol in dichloromethane out until almost dry, then adjust the volume. Methanol and water in the ratio of 1: 1.