Comparison of five extraction methods for evaluating cadmium and zinc immobilization in soil

Han, Hyeop-Jo; Lee, Jong-Un; Ko, Myoung-Soo; Kim, Kyoung-Woong

doi:10.1007/s10653-020-00650-y

Cited by 17 publications

(2 citation statements)

References 34 publications

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“…The extraction efficiency of HCl is dependent on the concentration and extraction time (Snape et al, 2004;Yu et al, 2021). The HCl concentrations differ within separate studies: 0.1 M (Giancoli Barreto et al, 2004;Yu et al, 2004;Wei et al, 2005;Menzies et al, 2007;Hyeop-Jo Han et al, 2020;Fu et al, 2020;Gil-Díaz et al, 2021), 0.2 M (Kuo et al, 2006;Leleyter et al, 2012), 0.5 M (Agemian and Chau, 1976;Gaiero et al, 2003;Sutherland et al, 2004) or 1 M (Snape et al, 2004;Hamdoun et al, 2015b;Yu et al, 2021). EDTA is one of the most widely used complexing reagent because of its high extraction capacity (Sahuquillo et al, 2003).…”

Section: Sequential Extraction Proceduresmentioning

confidence: 99%

Why comparison between different chemical extraction procedures is necessary to better assess the metals availability in sediments

Cuvier

Leleyter²,

Probst

et al. 2021

Journal of Geochemical Exploration

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Single and sequential extractions are current and useful tools for estimating the availability of metals in soils or sediments. Many chemical extraction procedures have been proposed in the literature, making the comparison difficult. This study compares the data consistency of the potential availability given by four chemical extractions commonly found in the literature: ➢ two single procedures (using dilute HCl or EDTA as reactant) ➢ two sequential procedures (the modified standardized 3-steps procedure of the Standards, Measurements and Testing Programme (SMTP), namely BCR-extraction, and the 7-steps procedure of Leleyter and Probst (1999), namely LP-extraction).The leaching procedures are all performed on the reference lake sediment CRM BCR-701, used as a reference to assess the accuracy of the modified standardized procedure of Rauret et al. (1999). The results show similar availabilities between HCl and EDTA single leaches for Zn, Cu, Cr and Pb and between HCl and the BCR procedures for Zn, Cu, Cr and Ni. The LP-extraction is the most aggressive of the four tested procedures (except for Pb extraction), mainly due to a better extraction of the exchangeable fraction, by a better dissolution of the acidosoluble phase and particularly to a better dissolution of the amorphous and crystalline Fe-oxides. The comparison between the four procedures reveals a major problem of Pb extraction, potentially due to the formation of lead precipitates during HCl and the LP-extractions, even if an overestimation of the lead availability by the BCR procedure cannot be excluded.

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Section: Sequential Extraction Proceduresmentioning

confidence: 99%

Why comparison between different chemical extraction procedures is necessary to better assess the metals availability in sediments

Cuvier

Leleyter²,

Probst

et al. 2021

Journal of Geochemical Exploration

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“…et al, 1998). 특히 1 M NH4NO3를 이용하는 용출 법은 식물의 금속 가용성 함량(phytoavailability)을 예측하 는데 가장 우수한 것으로 나타났으며 (Birke and Werner, 1991), 지렁이의 생체 이용률 평가에도 적합한 것으로 알려 져 있다 (Belotti, 1998) (Meers et al, 2007a;Han et al, 2020). Mehlich 3 용출법(HOAc-NH4F-HNO3-NH4NO3-EDTA)에 의하여 토양으로부터 추출된 영양소(N, P, K, Mg) 함량은 식물로 전이되는 영양소 함량과 매우 높은 상관성을 나타내며 (Trávník et al, 1999), 체코에서는 Mehlich 3 용출법에 의 해 추출된 P, K, Mg, Ca 함량을 바탕으로 국가의 토양시험 기준을 재설정하였다 (Zbíral, 2016).…”

Section: 중금속 오염 토양의 평가 방법unclassified

Study on Soil Extraction Methods for Contamination Assessment of Heavy Metals in Soil

Han

et al. 2020

ksmer

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Environmental geochemists have attempted to select proper soil extraction methods that deeply reflect the bioavailability, phytoavailability, and geochemical mobility of elements for the assessment of heavy metal contamination in soil. However, they are faced with complications during the process due to the complexity of heavy metal forms in soil and diversity in existing soil extraction methods. The present study summarizes the information on soil contaminated with heavy metals in Korea and current research trends on various single and sequential extraction techniques through a literature survey. This work is expected to serve as a fundamental reference for researchers to select an appropriate extraction method for evaluating bioavailability, phytoavailability, and geochemical mobility of heavy metals in soil.

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Soil contamination and human health: part 3

Bech

2020

Environ Geochem Health

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Comparison of five extraction methods for evaluating cadmium and zinc immobilization in soil

Cited by 17 publications

References 34 publications

Why comparison between different chemical extraction procedures is necessary to better assess the metals availability in sediments

Why comparison between different chemical extraction procedures is necessary to better assess the metals availability in sediments

Study on Soil Extraction Methods for Contamination Assessment of Heavy Metals in Soil

Soil contamination and human health: part 3

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