Pyrolysis of proline, leucine, arginine and lysine in aqueous solution

Details Pyrolysis of proline, leucine, arginine and lysine in aqueous solution Pyrolysis of proline, leucine, arginine and lysine in aqueous solution

Dec 1968

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968gecoa..32.1353v&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 32, Issue 12, pp.1353-1356

Mathematics

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Scientific paper

Arrhenius equations for pyrolysis in 0.01 M solution were: proline, = 1.5 × 10 12 e -42.,400/ RT ; leucine, = 1.7 × 10 14 e -45,200/ RT ; arginine, = 1.2 × 10 5 e -19,800/ RT ; lysine, non-linear. Ammonia was produced in all cases. Arginine gave rise to ornithine, proline and an unidentified basic compound in addition. As continuation of earlier studies on the relationship between the geological and thermal stability of amino acids ( and , 1960; , 1964; and , 1964) data are presented on the thermal reaction kinetics of four additional amino acids in 0.01 M aqueous solution. Experimental and analytical conditions were the same as those described previously ( , 1964) i.e. heating in sealed evacuated glass tubes and analysis by automated column chromatography. The kinetic results are shown in Fig. 1, with data on individual amino acids summarized below.

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