13C

例句

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1.
Aim: nuclear magnetic resonance spectrum of calycosin was studied, and its chemical shifts of 13C NMR were attributed.
目的：研究了毛蕊异黄酮的核磁共振波谱学，并对其13CNMR进行归属。
www.ceps.com.tw
2.
The structural changes of phenolic resin during thermal degradation could be observed more directly and clearly by 13C-NMR than FTIR.
固体核磁共振比红外光谱更直接，更清晰地反应出酚醛树脂在热降解过程中的结构变化。
www.ceps.com.tw
3.
The test is reliable, convenient and has higher specificity and sensitivity in HP detection.
13C尿素呼气试验在诊断HP感染时，方便可靠、特异性和敏感性较高。
www.chemyq.com
4.
This caused a massive release of 12C-rich methane into the atmosphere, explaining the initial drop in 13C concentrations.
这导致12C被大规模释放到大气中，也解释了13C浓度最初下降的原因。
megust.publicvm.com
5.
Conclusions 13C urea breathing test is safe and reliable in diagnosing children HP infection.
结论13C尿素呼气试验在诊断小儿HP感染中具有安全性及可靠性。
d.wanfangdata.com.cn
6.
The structures of the new intermediates and target compounds are confirmed by 1H NMR, 13C NMR, IR, and MS spectra.
所有的目标化合物和一些中间体化合物的结构都经过1HNMR、13CNMR、IR及MS得到了确认。
paper.pet2008.cn
7.
The chemical structure of as synthesized modified coumarin dyes were characterized by the nuclear magnetic resonance spectra (1H-, 13C-NMR).
合成出改质过的香豆素染料，其化学结构以核磁共振光谱术（1H-，13C-NMR）鑑定；
www.etop.org.tw
8.
Non-radioactive carbon comes in two forms: 12C and the heavier (and much rarer form) 13C.
非放射性碳以两种形式存在：12C还有较重（并且更罕见）的13C。
megust.publicvm.com
9.
The biosynthesis of the polyamines in cell culture was examined using the labeled substrates [U-13C]glucose and [U-13C]glutamate.
生物合成的多胺在细胞培养研究使用标示为基板[U型的13C]葡萄糖和[U型的13C]谷氨酸。
www.syyxw.com
10.
The structures of the intermediates and the target compound were confirmed by MS, 1H NMR and 13C NMR spectra in our experiments.
关键中间体及最终化合物的结构经质谱、核磁共振氢谱及碳谱得到确证。
www.ceps.com.tw