Adsorption and Decomposition of Peptides in Marine Sediments

进一步研究海洋沉积物对有机质的吸附过程将集中在两个方面：多肽的组成对其吸附和分解的影响，以及对早期工作中观察到的氨基酸的不可逆吸附的进一步研究。方法是观察为本研究合成的不同组成和链长的放射性标记多肽的吸附。还将对沉积物和提取的沉积物有机质对放射性标记氨基酸的吸附进行较长期的研究。一个广泛的目标是更好地了解导致海洋沉积物中有机质保存的过程，这仍然是一个知之甚少的现象。

Further study of the process of organic matter adsorption by marine sediments will focus two areas: the effect of the composition of peptides on their adsorption and decomposition, and the further investigation of the "irreversible" adsorption of amino acids observed in earlier work. The approach is to observe the adsorption of radiolabeled peptides of varying composition and chain length, synthesized for this study. Longer-term studies of the adsorption of radiolabeled amino acids by sediments and extracted sediment organic matter will also be done. A broad objective is better understanding of the processes leading to the preservation of organic matter in marine sediments, which remains a poorly-understood phenomenon.