改变立场 发表于 2025-4-1 05:42:49
Early History of Carbon-14rticular individual, time, or place. He notes that some discoveries, such as those of the neutrino, radio waves, and missing isotopes or elements, are predictable and present few problems as far as establishment of priority is concerned. Others, such as the discoveries of oxygen, x rays, and the eleChromatic 发表于 2025-4-1 09:09:32
http://reply.papertrans.cn/16/1501/150028/150028_62.pngCoronation 发表于 2025-4-1 11:14:28
C14-Labeling Using Carbene Insertion—Application to Saturated Hydrocarbonse of them than would be expected. This is due chiefly to difficulties in obtaining radioactive tracers in their proper chemical forms. Labeled compounds that can be purchased are generally expensive, are sometimes of questionable purity, and the time for delivery may be excessive.赞成你 发表于 2025-4-1 17:12:26
http://reply.papertrans.cn/16/1501/150028/150028_64.png瘙痒 发表于 2025-4-1 18:54:15
http://reply.papertrans.cn/16/1501/150028/150028_65.png亲爱 发表于 2025-4-2 00:58:22
The Biosynthesis of C14- and H3-Labeled Insulince of the two peptide chains is known [.] and, therefore, the insulin molecule has become a model protein for research in synthetic mechanisms. Many techniques for the purification and characterization of insulin have been developed [.]. In the study of insulin biosynthesis, several investigators ha