鸟嘌呤
碱基
尿嘧啶
胞嘧啶
胸腺嘧啶
X射线光电子能谱
DNA
核糖核酸
谱线
化学
结晶学
分析化学(期刊)
核化学
核苷酸
生物化学
核磁共振
环境化学
物理
基因
天文
作者
Madeleine Ramstedt,Andrey Shchukarev
摘要
X-ray photoelectron spectroscopy was used to analyze commercially available powders of thymine, uracil, cytosine, guanine, adenine, as well as DNA isolated from salmon testes and RNA from torula yeast. The powders were pressed onto a sample holder and analyzed as received from the manufacturer. Survey spectra and high-resolution spectra of O 1s, N 1s, C 1s of all nucleobases are reported, including a small Na 1s contamination in cytosine. Spectra of DNA and RNA are also included for comparison. Furthermore, the presented data are compared with previously published results, as well as theoretical values, and differences are discussed.
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