THE QUANTITATIVE DETERMINATION OF CHLOROPHYLL

Up to the present time many methods have been used to determine the amount of chlorophyll present in a plant or in a given solution. Not one of the methods has been generally adopted by those who desire to estimate chlorophyll quantitatively. Each worker apparently has adopted a method of his own. It is clearly evident then that attempts at standardization should be made. The methods as given here are an attempt to place the estimation of chlorophyll on a sound basis, so that all workers may be able to compare their data. The results reported are not to be considered as final but only a report of progress in the development of better methods of quantitative research in this field.