Absorbance spectra of chlorophyll a and b in a solvents, in a N,N-dimethylformamide, chlorophyll a has approximate absorbance maxima of 663.8 nm(A), while chlorophyll b has approximate of 647.2 nm(B). In a Dimethylsulfoxide, chlorophyll a has approximate absorbance maxima 665.2 nm(C), while chlorophyll b has approximate of maxima of 649.0 nm(D).