Abstract
Abstract Recent suggestions that the ratio of the heights of the “blue” (430 mμ) and “red” (660 mμ) absorption bands of chlorophyll a in diethyl ether solution should be 1.17–1.19 are not compatible with our results for the specific activities or the spectroscopic properties of rigorously purified samples of 14C-labelled chlorophyll a. We have shown that it is possible to obtain values of this ratio significantly lower than the commonly accepted value of 1.31–1.32 as the result of interaction of the pigment molecules with alcohol or water in the diethyl ether. We have shown with the aid of spectroscopic, chromatographic, and radiotracer data that the lower values certainly do not reflect improved freedom of the chlorophyll a preparations from xanthophylls as has been claimed. We also conclude that a limiting value for this ratio must exist and that this value is 1.29.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
