Evaluation of bioavailability of light rare earth elements to wheat (Triticum aestivum L.) under field conditions

Fang, Jing; Wen, Bin; Shan, Xiao-quan; Wang, Huanhua; Lin, Jin‐Ming; Zhang, Shuzhen

doi:10.1016/j.geoderma.2007.05.014

Cited by 26 publications

(9 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high geochemical association between Fe and HREEs might be related to preferential scavenging of the HREEs by pedogenic minerals, most probably Fe-oxyhydroxides (Brioschi et al, 2013). The influence of Fe oxide contents on the bioavailability of REEs was also reported by Fang et al (2007 Bold: significant at p<0.01; underlined: significant at p<0.05. of Fe oxyhydroxides suggested that these elements are preferentially associated with Fe oxyhydroxides (Pédrot et al, 2015). Significant positive correlations (p<0.01) between Fe oxides and REEs (except for Ce) were obtained in agricultural soils from German (Loell et al, 2011); however, no significant correlation was observed between OC and REEs (except for Ce).…”

Section: ) the Clear Decoupling Between Lrees (Pc2) Andmentioning

confidence: 84%

Rare Earth Element Concentrations in Brazilian Benchmark Soils

Silva

Nascimento

Silva

et al. 2016

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

Studies regarding background concentrations of rare earth elements (REEs) are scarce and have mainly focused on a limited number of soil types from the northern hemisphere. The aim of this study was to determine REE concentrations in thirty-five benchmark soils of Brazil. Composite soil samples were taken from areas under native vegetation or with minimal anthropogenic influence. Concentrations of La, Ce, Pr, Nd, Sm, Eu, Gd, Yb, Lu, Dy, Er, Ho, Tb, Tm, Y, Sc, and Fe were determined by ICP-OES using a cyclonic spray chamber/nebulizer system after microwave acid digestion. Results were assessed by descriptive statistics, Pearson correlation, and principal component analysis (PCA). Regression analyses among Fe, organic carbon, and REEs were performed to provide a tool for estimating REE concentrations in soils. The REE concentrations in the Brazilian benchmark soils were in the following order: Ce > La > Nd > Pr > Y > Sm > Gd > Sc > Dy > Yb > Eu > Er > Tb > Ho > Lu > Tm. The clear decoupling between light and heavy rare earth elements in soils, indicated by multivariate analysis, is mainly related to differences in parent material. The lowest REE concentrations were found in sandy sediments, whereas the highest REE concentrations were observed in basalt, biotite gneiss, and clayey sediments. The organic carbon and Fe concentrations can properly predict REE concentrations in soils; such a finding can assist in estimating REE concentrations in soils not only in Brazil but also in similar soils developed under tropical conditions.

show abstract

Section: ) the Clear Decoupling Between Lrees (Pc2) Andmentioning

confidence: 84%

Rare Earth Element Concentrations in Brazilian Benchmark Soils

Silva

Nascimento

Silva

et al. 2016

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…It is interesting to note that three of the four most important variables in the model are REEs. The potential use of lanthanides as soil tracers is still under discussion but results of previous works suggest their usefulness in food authentication,50 especially in the case of the heavy lanthanides (Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) 46, 51. On the basis of the previous considerations on evaporation phenomena during the industrial processing that heavily affect these parameters, flattening the differences due to the geographical origin, and differently from previous works on food authentication,34, 39, 44 δD and δ 18 O are not included among the influential parameters.…”

Section: Resultsmentioning

confidence: 99%

Traceability along the production chain of Italian tomato products on the basis of stable isotopes and mineral composition

Bontempo

Camin

Manzocco

et al. 2011

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

The paper shows the variability of stable isotope ratios and mineral composition in tomato and derivatives along the production chain (juice, passata and paste) in order to evaluate the possibility of tracing their geographical origin. The ratios (13)C/(12)C, (15)N/(14)N, (18)O/(16)O, D/H, (34)S/(32)S and the content of Li, Be, B, Na, Mg, Al, P, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Rb, Sr, Y, Mo, Ag, Cd, Sn, Sb, Cs, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Tm, Yb, Ir, Tl, Pb, U and of nitrates, chlorides, sulphates and phosphates were measured by Isotope Ratio Mass Spectrometry, Inductively Coupled Plasma Mass Spectrometry and Ion Chromatography, respectively. The tomato products were from three Italian regions - Piedmont, Emilia Romagna, and Apulia. By applying linear discriminant analysis on 17 of these parameters (Gd, La, Tl, Eu, Cs, Ni, Cr, Co, δ(34)S, δ(15)N, Cd, K, Mg, δ(13)C, Mo, Rb and U) excellent discrimination among products from the three regions was achieved. Irrespective of the processing technology, over 95% of the samples were correctly reclassified in cross-validation into the production site. The use of these parameters will allow the development of analytical control procedures that can be used to check the geographical provenance of Italian tomatoes and products derived from them.

show abstract

“…The water soluble and/or exchangeable fractions are commonly targeted for studying biogeochemical cycling (e.g. Drouet et al, 2007;Fang et al, 2007;Frei et al, 2009;Leybourne and Johannesson, 2008;Loell et al, 2011;Miller et al, 1993;Poszwa et al, 2000;Tyler, 2004) …”

Section: Estimating Element Bioavailability In Soilmentioning

confidence: 99%