The Elite™ Fluorimetric NADP/NADPH Assay Kit provides a sensitive, one-step assay to detect as little as 1 picomoles of NADPH in a 100 μl assay volume (10 nM). It has very low background since it is run in the red visible range that significantly reduces the interference resulted from biological samples.There is no need to purify NADP/NADPH from sample mix.