Abstract
Summary
1. Percentages of total amino acids in viable tissues of the Walker carcinosarcoma 256 (rat), Sarcoma 180 (mouse), and Taylor tumor (mouse) have been determined by both column and paper chromatography. 2. Values obtained by column chromatography agreed satisfactorily with those determined in the same laboratory by microbiological assay while the majority of values determined by paper chromatography were in poor agreement with those of the other two methods. 3. There was no significant difference in the total amino acid content of tumors from rats or mice.
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