we propose a new quantitative electrochemical method for determining glucose-6-phosphate dehydrogenase ( ec 1.1.1.49 ) activity in purified erythrocytes or in whole blood , based on measurement of the ph change caused by oxidation of glucose 6-phosphate to 6-phosphogluconic acid , with simultaneous reduction of nadp+ to nadph + h+ .
C0017757
glucose-6-phosphate dehydrogenase
C0030011
oxidation