Organic nitrogen in sediments of the Peru upwelling region

Nitrogen in fossil fuels is present in pyrrolic- and pyridinic-functional groups. In contrast, organic nitrogen in living organisms is overwhelmingly found in amino acids in...化石燃料中的氮以吡咯官能团（pyrrolic-functional groups）与吡啶官能团（pyridinic-functional groups）的形式存在。与之相对，生物体中的有机氮绝大多数存在于氨基酸中……