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Peak 1 purification (07/26/1976)

Purpose/Intro: To isolate the adduct from the DNA hydrolysate 7-21-1.
Results/Conclusion: "1. Only 12% of the hydrolysate was recovered as semipurified Peak 1—this is much lower than expected—and I know that more than 70% of the hydrolysate radioactivity was present as Peak 1; 2. Peak 1 probably was there, but it didn't stick to the precolumn."
Notes: With regard to the precolumn: see the lower half of page 10w and the explanation given in the "Notes" section for the experiment entitled, "Isolation of a large amount of Peak 1" performed on 4/20/1976. As John mentions, the adduct does not "stick" to the precolumn as he hoped it would.

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