doi: 10.1016/S0006-3495(69)86389-7.
Studies of Raman spectra of water solutions of adenosine tri-, di-, and monophosphate and some related compounds
- PMID: 5780711
- PMCID: PMC1367571
- DOI: 10.1016/S0006-3495(69)86389-7
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Studies of Raman spectra of water solutions of adenosine tri-, di-, and monophosphate and some related compounds
Biophys J.
1969 Mar.
Abstract
Using a He-Ne CW laser source together with a digital photon counting system, we have obtained well resolved Raman spectra for adenosine mono-, di-, and triphosphate (AMP, ADP, ATP) in aqueous solution. Spectra of these compounds were studied as a function of pH from pH = 0.5 to 13.5 and between 550 and 1700 cm(-1). It was found possible to distinguish spectroscopically between the three phosphates over the pH range studied. A qualitative analysis of vibrational modes responsible for various spectral lines is given. Lines at about 960 and 1100 cm(-1) were found to be good indications of the degree of ionization of the terminal phosphate group.
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