The Ultraviolet Absorption Spectra of Pyrazoles and 1-Carboxamidepyrazoles and Their Application | |
Shi, YF; Wu, ZJ; Chen, LJ; Chen, G; Liu, YP; Mang, LL; Wu, ZJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China | |
刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS |
2009 | |
卷号 | 29期号:3页码:781-785 |
关键词 | Uv Absorption Spectra Pyrazole Nitrification Inhibitor |
ISSN号 | 1000-0593 |
英文摘要 | The ultraviolet absorption spectra of pyrazoles and 1-carboxamidepyrazoles were studied. The results indicated that substitution in the 3 or the 5 position it leads to a bathochromic shift of the position of the maximum absorption by about 3-4 nm, whereas in the 4 position leads to a much larger bathochromic shift (>10 nm). The introduction of carboxamide causes a bathochromic shift of the position of the maximum absorption by about 20-26 nm. Its also leads to an increase in molar extinction coefficient by about 2-3 times, So UV methods were established for determining the contents of pyrazoles and their derivations. Using these methods, the content of 3,4-dimethylpyrazole phosphate (DMPP) in stabilized urea was determined to be 1.15% of uren-N. the hydrolytic half lives of 1-carboxamide-3-methylpyrazole (CMP) in water solution at 20, 25 and 30 degrees C were 48, 30 and 16 h, respectively, and the extraction percentage of nitrification inhibitor 3-methylpyrazole phosphate (MPP) in 3 soils by 3 different extractants were ranged from 63.2% to 89.2%. |
学科主题 | Spectroscopy |
语种 | 中文 |
WOS记录号 | WOS:000263801800048 |
公开日期 | 2011-09-23 |
内容类型 | 期刊论文 |
源URL | [http://210.72.129.5/handle/321005/54215] |
专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
通讯作者 | Wu, ZJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
推荐引用方式 GB/T 7714 | Shi, YF,Wu, ZJ,Chen, LJ,et al. The Ultraviolet Absorption Spectra of Pyrazoles and 1-Carboxamidepyrazoles and Their Application[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2009,29(3):781-785. |
APA | Shi, YF.,Wu, ZJ.,Chen, LJ.,Chen, G.,Liu, YP.,...&Wu, ZJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2009).The Ultraviolet Absorption Spectra of Pyrazoles and 1-Carboxamidepyrazoles and Their Application.SPECTROSCOPY AND SPECTRAL ANALYSIS,29(3),781-785. |
MLA | Shi, YF,et al."The Ultraviolet Absorption Spectra of Pyrazoles and 1-Carboxamidepyrazoles and Their Application".SPECTROSCOPY AND SPECTRAL ANALYSIS 29.3(2009):781-785. |
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