The effect of temperature on the preservation of purine and pyrimidine bases

Details The effect of temperature on the preservation of purine and pyrimidine bases The effect of temperature on the preservation of purine and pyrimidine bases

Dec 1964

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1964gecoa..28.1953m&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 28, Issue 12, pp.1953-1959

Computer Science

1

Scientific paper

The aerobic solid phase decomposition of the five major naturally-occurring purine and pyrimidine bases of the nucleic acids was studied spectrophotometrically. Throughout the temperature range 115-264°C, the decompositions follow first-order kinetics and obey the Arrhenius relationship except in the case of guanine where a distinct change in slope was noted at about 200°C. The energies of activation and temperature ranges studied are as follows: cytosine, 36.2 kcal/mole (121-246°C); thymine, 23.4 kcal/mole (115-221°C); uracil, 32.3 kcal/mole (115-196°C); adenine, 36·4 kcal/mole (115-221°C); guanine, 23·4 kcal/mole (115-196°C); 11.6 kcal/mole (196-264°C). Extrapolations suggest that under the conditions studied adenine and cytosine would have half-lives of approximately 10 6 years at 25°, guanine and uracil would have half-lives of between 10 4 and 10 5 years, while thymine would have a half-life of less than 10 3 years.

Affiliated with

Also associated with

No associations

Rating

The effect of temperature on the preservation of purine and pyrimidine bases does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The effect of temperature on the preservation of purine and pyrimidine bases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effect of temperature on the preservation of purine and pyrimidine bases will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-811975