Enrichment of lanthanides in aragonite

Qu, Chengli; Lü, Bo; Liu, Gang

doi:10.1016/s1002-0721(08)60389-0

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…). In addition, RE elements can substitute Ca, Mg, Zn, Se, etc., which is necessary for the growth of pearls (Liu, Liu, Lu, Zhu, Dong, Pang, Shen & Qu ; Qu, Lu & Liu ). So it can be predicted that Europium REE maybe have transferred into the surface of the pearls, giving rise to changes of microstructure of pearls.…”

Section: Discussionmentioning

confidence: 99%

“…Since RE ions have similar ionic radii and properties as calcium ions, which are often referred to as 'super-calcium' and can also fulfil these roles (Shi et al 2007). In addition, RE elements can substitute Ca, Mg, Zn, Se, etc., which is necessary for the growth of pearls (Liu, Liu, Lu, Zhu, Dong, Pang, Shen & Qu 2004;Qu, Lu & Liu 2009). So it can be predicted that Europium REE maybe have transferred into the surface of the pearls, giving rise to changes of microstructure of pearls.…”

Section: Discussionmentioning

confidence: 99%

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Effects of dietary Europium complex and Europium(III) on cultured pearl colour in the pearl oysterPinctada martensii

Liu

Song

et al. 2012

Aquac Res

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In the present study, through a transmission experiment, the effects of europium complex and Eu3+ on the pearl colour in the pearl oyster Pinctada martensii were evaluated. Europium complex and europium salt were respectively enriched by dietary green algae platymonas subcordiformi, and their toxicity to algae were analysed by the 96‐h acute toxic experiment. Then, the green algae enriched europium complex and europium salt were respectively fed pearl oysters for 2 months, and the surface microstructures of cultured pearls were presented with scanning electron microscopy (SEM) and atomic force microscope(AFM). The results show that toxicity of europium complex to algae is much lower than Eu3+ from lowest no observable effect concentration LNOEC values and 96h‐EC50 values and two compounds can modify pearl structure and optimize pearl colour from SEM and AFM images. Taken together, our results, for the first time, show that rare earth complex can improve the pearl quality. This study provides an innovative approach for additional investigation of the influence of rare earth elements on pearls.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of dietary Europium complex and Europium(III) on cultured pearl colour in the pearl oysterPinctada martensii

Liu

Song

et al. 2012

Aquac Res

View full text Add to dashboard Cite

show abstract

“…Recent analyses of stalagmite REE patterns have identified a quasilinear enrichment of the REEs with increasing atomic number in respect to bedrock concentrations (Zhou et al, 2008a(Zhou et al, , 2008b(Zhou et al, , 2012Bourdin et al, 2011). Experimental studies indicate that these systematic variations in REE concentrations are likely to be related to elemental fractionation during calcite precipitation (Zhong and Mucci, 1995;Qu et al, 2009). However, the controls on the partitioning of the REEs during actual stalagmite formation have yet to be identified.…”

Section: Introductionmentioning

confidence: 99%