干旱区生态环境知识资源中心(Arid): Efficient Quantification of Soluble and Insoluble Oxalates in Clay Mineral Mixtures

Arid

DOI	10.1080/00103624.2024.2336574
	Efficient Quantification of Soluble and Insoluble Oxalates in Clay Mineral Mixtures
	Nel, Teneille; Clarke, Catherine E.; Francis, Michele L.; Stone, Wendy; Cowan, Don A.; Botha, Alfred; Gallagher, Timothy
通讯作者	Clarke, CE
来源期刊	COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
ISSN	0010-3624
EISSN	1532-2416
出版年	2024
卷号	55 期号:13 页码:1985-1999
英文摘要	Quantification of oxalate salts in soil clay minerals is necessary to study oxalate biogeochemistry, but existing analytical techniques are expensive and time-consuming. We aim to develop an efficient attenuated total reflectance mid-infrared (MIR) spectroscopic technique to quantify oxalate salts in a clay mineral matrix. We calibrated MIR models for analysis of oxalate anion concentrations in standard solutions (0-0.01 M) by using a partial least-squares regression algorithm. MIR models were also developed for analysis of sodium oxalate (NaOx) and calcium oxalate (CaOx) content in clay mineral mixtures with composition like soils of a semi-arid region and with contrasting concentrations (0-1.0 g g-1 for both oxalate salts) to test sensitivity of analyses. Validation plots (true vs predicted values) showed excellent model fit (R2 $ \ge $>= 0.96) and accuracy (normalized root mean squared error of prediction $ \le $<= 0.06) for CaOx, NaOx and oxalic acid components. Once predictive models are stored in analytical software, MIR spectroscopic analyses of samples are much more efficient than chemical techniques. Our MIR spectral-based models are suitable for direct quantification of oxalate salts in clay mineral mixtures for samples like those used for model calibration.
英文关键词	Insoluble oxalates nondestructive analysis soluble oxalates whewellite
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001195304500001
WOS关键词	TANDEM MASS-SPECTROMETRY ; CALCIUM-OXALATE ; CARBONATE PATHWAY ; REFLECTANCE SPECTROSCOPY ; INFRARED-SPECTROSCOPY ; RAMAN-SPECTROSCOPY ; URINARY CALCULI ; ORGANIC-CARBON ; SOILS ; PREDICTION
WOS类目	Agronomy ; Plant Sciences ; Chemistry, Analytical ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences ; Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403240
推荐引用方式 GB/T 7714	Nel, Teneille,Clarke, Catherine E.,Francis, Michele L.,et al. Efficient Quantification of Soluble and Insoluble Oxalates in Clay Mineral Mixtures[J],2024,55(13):1985-1999.
APA	Nel, Teneille.,Clarke, Catherine E..,Francis, Michele L..,Stone, Wendy.,Cowan, Don A..,...&Gallagher, Timothy.(2024).Efficient Quantification of Soluble and Insoluble Oxalates in Clay Mineral Mixtures.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS,55(13),1985-1999.
MLA	Nel, Teneille,et al."Efficient Quantification of Soluble and Insoluble Oxalates in Clay Mineral Mixtures".COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 55.13(2024):1985-1999.