13CNMR

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1.

The corresponding 13 C NMR resonance peaks are the major basis for the differentiation between treated amber and treated resin .

与之对应的 13CNMR 共振谱峰是判断处理琥珀或处理树脂的重要依据。

2.

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

3.

These new ring-opening products' structure can be determined by IR, 1HNMR, 13CNMR and EIMS.

所合成的新开环产物的结构都通过 IR，1HNMR，13CNMR，EIMS 和元素分析确定。

www.ceps.com.tw

4.

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

5.

The routine chemical analysis means and 13CNMR spectra were employed to learn the relations of structure and quality of UF resin .

采用常规化学分析和 ^13C 核磁共振相结合的方法，分析研究了脲醛树脂胶粘剂性能与结构的关系。