| 1. | Its stucture was investigated through ir , 1h nmr and mass spectrum
用红外光谱、核磁共振氢谱和质谱推测了产物的结构。 |
| 2. | Identification of lactic acid bacteria 32 by sequence analysis of 16s rdna and reca - gene
四氢呋喃的核磁共振氢谱分析 |
| 3. | The structures of the intermediates and product were characterized with 1h nmr and mass spectra
中间体及产物用质谱和核磁氢谱进行了结构表徵。 |
| 4. | The structures of new compounds 7 and 8 were identified by 1h nmr , 13c nmr and hrms spectra
新化合物7 , 8经核磁共振氢谱、碳谱和高分辨率质谱予以证实。 |
| 5. | The structures of the target molecules and the key intermediates were confirmed by 1h nmr , 13c nmr and ir spectra in our experiments
关键中间体及最终化合物的结构经核磁共振氢谱、碳谱及红外光谱确证。 |
| 6. | The structures of the intermediates and the target molecule were confirmed by ( superscript 1 ) h nmr and ( superscript 13 ) c nmr spectra in our experiments
关键中间体及最终化合物的结构经核磁共振氢谱及碳谱确证。 |
| 7. | Methods a mixture fraction was determined by 1h - nmr techniques to find any evidence , further isolation of the fraction guided with this evidence was carried out
方法混合组分测定氢谱，用混合物氢谱测定获得的线索指导进一步分离。 |
| 8. | The structure of the resulting pyrylium salts was confirmed by ft / ir , ( superscript 1 ) h nmr , ( superscript 13 ) c nmr , ms spectroscopies and elemental analyses
分别用红外光谱、核磁共振氢谱、碳谱、质谱以及元素分析对所得化合物进行了表征。 |
| 9. | The molecular structure of ethyl cellulose was characterized and confirmed by elementary analysis , ft - ir and 1h nmr , and the compound obtained was final objective product
通过元素分析、红外光谱和核磁共振氢谱对产物的分子结构进行表征，确定所合成的化合物即为目标产物。 |
| 10. | Conclusion the efficiency for finding of leading compounds could be improved if the isolation is based on metabonomics under the guidence of the new method of botanical mixture determination by 1h - nmr
结论基于植物代谢组学混合物氢谱测定指导下的分离是一种高效发现先导化合物的新方法。 |
