Determination of Amorphous Iron Oxides in Soil by Hydroxylamine Extraction-Spectrophotometry

IMR OpenIR

	Determination of Amorphous Iron Oxides in Soil by Hydroxylamine Extraction-Spectrophotometry
	Chi Guangyu 1; Zhang Zhaowei 3; Chen Xin 1; Shi Yi 1
	2008
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN	1000-0593
卷号	28 期号:12 页码:2931-2934
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.
关键词	OXALATE DITHIONITE SEDIMENTS FE Spectrophotometry Amorphous iron oxides in soil Oxalic acid-oxalic acid ammonium extraction Hydroxylamine extraction
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:3443884
引用统计	被引频次：7[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/154760
专题	中国科学院金属研究所
作者单位	1.中国科学院 2.中国科学院大学 3.中国科学院金属研究所
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.