Determination of Amorphous Iron Oxides in Soil by Hydroxylamine Extraction-Spectrophotometry
文献类型：期刊论文
| 作者 | Chi Guangyu3; Zhang Zhaowei1; Chen Xin3; Shi Yi3 |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2008 |
| 卷号 | 28期号:12页码:2931-2934 |
| 关键词 | OXALATE DITHIONITE SEDIMENTS FE Spectrophotometry Amorphous iron oxides in soil Oxalic acid-oxalic acid ammonium extraction Hydroxylamine extraction |
| ISSN号 | 1000-0593 |
| 英文摘要 | Amorphous iron oxides in soil were determined by hydroxylamine extraction-spectrophotometry. The results showed that hydroxylamine extraction eliminates interference of magnetite and the defect of results being on the high side was overcome to a certain degree compared with oxalic acid-oxalic acid ammonium extraction. The hydroxylamine extraction-spectrophotometry for the detection of amorphous iron oxides in soil was highly precise (relative standard deviation was less than 2.0%) and highly reliable (recovery rates ranged from 97.5% to 101.5%). Other advantages of the method were rapidness, simplicity and a shorter chromogenic time. In addition, soil incubated anaerobically at constant temperature under laboratory condition was investigated. The results suggested that iron reduction rates during initiation, rapid reaction and steady phases in the soil samples anaerobic incubation were 0.030-0.053, 0.186-0.333 and 0.015-0.030 g center dot d(-1) center dot kg(-1), respectively. Significant relationship between the concentrations of hydroxylamine extraction iron and iron reduction rates during rapid reaction phase in soil incubation (r = 0.9907, p<0.01) indicated that hydroxylamine had a higher degree of selectivity in amorphous iron oxides extraction than oxalic acid-oxalic acid ammonium extraction. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:3443884 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/154759]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.中国科学院金属研究所 2.中国科学院大学 3.中国科学院 |
| 推荐引用方式 GB/T 7714 | Chi Guangyu,Zhang Zhaowei,Chen Xin,et al. Determination of Amorphous Iron Oxides in Soil by Hydroxylamine Extraction-Spectrophotometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2008,28(12):2931-2934. |
| APA | Chi Guangyu,Zhang Zhaowei,Chen Xin,&Shi Yi.(2008).Determination of Amorphous Iron Oxides in Soil by Hydroxylamine Extraction-Spectrophotometry.SPECTROSCOPY AND SPECTRAL ANALYSIS,28(12),2931-2934. |
| MLA | Chi Guangyu,et al."Determination of Amorphous Iron Oxides in Soil by Hydroxylamine Extraction-Spectrophotometry".SPECTROSCOPY AND SPECTRAL ANALYSIS 28.12(2008):2931-2934. |
入库方式： OAI收割
来源：金属研究所
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