Combining centrifugal and flow field-flow fractionation with ICPAES to characterize the size and elemental composition of soil clay minerals

Soheyl Tadjiki; David J Chittleborough; Ronald Beckett

doi:10.1016/j.clay.2020.105705

$Combining centrifugal and flow field-flow fractionation with ICPAES to characterize the size and elemental composition of soil clay minerals$

Journal article

Peer reviewed

Combining centrifugal and flow field-flow fractionation with ICPAES to characterize the size and elemental composition of soil clay minerals

Soheyl Tadjiki, David J Chittleborough and Ronald Beckett

Applied Clay Science, Vol.195, pp.1-8

2020

DOI: https://doi.org/10.1016/j.clay.2020.105705

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Abstract

In this work a method was developed for determining the mass and element-based size distributions of submicron sized soil particles. The method used field-flow fractionation (FFF) to separate the particles and inline UV and inductively coupled plasma atomic emission spectrometry (ICPAES) detectors to evaluate the mass and element concentrations in the eluent respectively. The data was used to plot strategic element molar ratios versus particle diameter which greatly simplifies interpretation of the trends in terms of soil processes. The method was tested using samples collected from the A and B horizon matrix material and cutans of the Camel Hill sand near Monarto in South Australia, a soil with strongly contrasting texture. The major findings were that the size of the clay mineral components (particles <2 μm) decreased in the order A horizon>B horizon>cutans and that the mineralogy was almost identical in all soil samples. A possible implication would be that the clays in the B horizon matrix and cutans have been physically translocated from the A horizon with little chemical weathering but this does not fit the photoimages of the soil horizon. However, this study strongly indicated that the information obtained by FFF-UV-ICPAES, when combined with data derived from other analytical techniques, will be a powerful tool in understanding the mechanisms of soil formation and weathering. [Display omitted] •FFF and ICPAES were combined to characterize soil clay particles.•Element-based size distributions of submicron sized soil particles were determined.•The size of the clay minerals decreased in the order A horizon>B horizon>cutans•The mineralogy in all samples was almost identical.•Thus the B horizon and cutans have been physically translocated from the A horizon

Details

Title: Combining centrifugal and flow field-flow fractionation with ICPAES to characterize the size and elemental composition of soil clay minerals
Authors: Soheyl Tadjiki (Author) - Monash University
David J Chittleborough (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - Legacy
Ronald Beckett (Author) - Monash University
Publication details: Applied Clay Science, Vol.195, pp.1-8
Publisher: Elsevier B.V
DOI: 10.1016/j.clay.2020.105705
ISSN: 1872-9053
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science and Engineering - Legacy; Sustainability Research Centre; School of Science, Technology and Engineering
Language: English
Record Identifier: 99465406502621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Physical; Materials Science, Multidisciplinary; Mineralogy

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