with these new methods , it has become possible to obtain , in less than 6 hr and with reliable reproducibility , mitochondria practically free of contaminants , as well as the rarer cytoplasmic particles in amounts ( about 100 mg of protein ) and in a state of purity ( 95 % ) that make them suitable for detailed biochemical studies .
C0026237
mitochondria
C0010834
cytoplasmic