Study on the soil mid-infrared photoacoustic spectroscopy
文献类型：期刊论文
| 作者 | Du Chang-wen; Zhou Jian-min; Wang Huo-yan; Mang Jia-bao; Zhu An-ning |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2008-06-01 |
| 卷号 | 28期号:6页码:1242-1245 |
| 关键词 | soil infrared photoacoustic spectroscopy principal components analysis soil identification |
| ISSN号 | 1000-0593 |
| 通讯作者 | Du Chang-wen(chwdu@issas.ac.cn) |
| 英文摘要 | Infrared photoacoustic spectroscopy (PAS) is a new style to obtain data based on photoacoustic theory. Photoacoustic thoeory is based on the absorption of electromagnetic radiation by analyte molecules, and the absorbed energy is measured by detecting pressure fluctuations in the form of sound waves or shock pulses. In contrast to conventional absorption spectroscopy, PAS allows the determination of absorption coefficients over several orders of magnitude, even in very black and strongly scattering soil samples. Red soil, fulvic soil and paddy soil were collected from Fengqiu National Ecological Experimental Station, Yingtan Red Soil Experimental Station, and Changshu Ecological Experimental Station, respectively. These soil samples were used as experimental materials to characterize the Fourier transform mid-infrared photoacoustic spectra (FTIR-PAS). Compared with infrared transmittance spectra and reflectance spectra, the testing of FTIR-PAS spectra was very fast and convenient with-out any pr-treatment, and there were more abundant absorptions as well as appropriate absorption values in the spectra; The main soil components (kaolin, bentonite, sand and CaCO3) also showed several strong absorptions with specific characteristics in the spectra; Further more, the interference of water with the PAS spectra was significantly smaller than that with reflectance spectra. Therefore, the soil properties could be better characterized by FTIR-PAS. The principal components analysis based on the FTIR-PAS spectra indicated that there were two main principal components (PCAI., PCA2) which contained 98.17% variance of the spectra, and the two-dimensionol distribution was made by plotting these two principal components to classify the soil type, and the results indicated that this distribution could be applied to distinguish soil type, which provided new technique for soil identification as well as further quantitative analysis in soil science. |
| 收录类别 | SCI |
| WOS关键词 | DIFFUSE-REFLECTANCE SPECTROSCOPY ; FT-IR SPECTRA ; ORGANIC-MATTER ; IDENTIFICATION ; DIFFERENTIATION ; MOISTURE ; NITRATE |
| WOS研究方向 | Spectroscopy |
| WOS类目 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000257356600010 |
| 出版者 | BEIJING UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558743 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Du Chang-wen |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, Natl Key Lab Soil & Agr Sustainabil, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du Chang-wen,Zhou Jian-min,Wang Huo-yan,et al. Study on the soil mid-infrared photoacoustic spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2008,28(6):1242-1245. |
| APA | Du Chang-wen,Zhou Jian-min,Wang Huo-yan,Mang Jia-bao,&Zhu An-ning.(2008).Study on the soil mid-infrared photoacoustic spectroscopy.SPECTROSCOPY AND SPECTRAL ANALYSIS,28(6),1242-1245. |
| MLA | Du Chang-wen,et al."Study on the soil mid-infrared photoacoustic spectroscopy".SPECTROSCOPY AND SPECTRAL ANALYSIS 28.6(2008):1242-1245. |
入库方式： iSwitch采集
来源：南京土壤研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。