Cd, Gd and Sm Concentrations in BCR‐1, BHVO‐1, BIR‐1, DNC‐1, MAG‐1, PCC‐1 and W‐2 by Isotope Dilution Thermal Ionisation Mass Spectrometry

Sands, Daphne G.; Rosman, K.J.R.

doi:10.1111/j.1751-908x.1997.tb00533.x

Cited by 19 publications

(7 citation statements)

References 16 publications

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“…Of particular importance for this study is the analysis of Cd, which, in typical rock samples, occurs at the double digits ppb concentration. Values obtained in this study were calibrated against the W-2 concentration of 77 ppb determined by Sands and Rosman (1997) and agree very well with the most recent literature data. Figure 2 shows a comparison of the values obtained here with published data for the 6 above-mentioned…”

Section: Laboratory Analysessupporting

confidence: 86%

Effect of salinity on the skeletal chemistry of cultured scleractinian zooxanthellate corals: Cd/Ca ratio as a potential proxy for salinity reconstruction

et al. 2013

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The effect of salinity on the elemental and isotopic skeletal composition of modern zooxanthellate scleractinian corals (Acropora sp., Montipora verrucosa and Stylophora pistillata) was investigated in order to evaluate potential salinity proxies. Corals were cultured in the laboratory at three salinities (36, 38 and 40). The other environmental parameters were kept constant. For all species analyzed, Sr/Ca, Mg/Ca, U/Ca and Li/Ca ratios were not influenced by salinity changes. The Ba/Ca ratio also lacks a systematic relationship with salinity and exhibits high inter-generic variations, up to one order of magnitude. On the contrary, the Cd/Ca ratio decreases as a function of increasing salinity, and δ18O and δ13C also presented a significant response, but with opposite trends to salinity variations. Since Cd/Ca is usually considered as an upwelling proxy, its salinity dependence could compromise the upwelling signal, unless some corrections can be carried out. Regardless, if the dependence found in the present dataset proved to be widespread and systematic, the Cd/Ca ratio could represent a promising salinometer awaiting further investigation. This study also confirmed the reliability of the well-established temperature proxies Sr/Ca, Mg/Ca and U/Ca, as these ratios were insensitive to salinity variations. Moreover, our results showed that δ18O or δ13C can be considered as reliable temperature recorders as far as the salinity effect is removed from the parameter reconstructed (e.g., temperature). Investigating the influence of salinity on the skeletal chemistry of scleractinian corals grown under controlled environmental conditions confirmed previous results, validated isotopic corrections, and identified a promising proxy of salinity

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Section: Laboratory Analysessupporting

confidence: 86%

Effect of salinity on the skeletal chemistry of cultured scleractinian zooxanthellate corals: Cd/Ca ratio as a potential proxy for salinity reconstruction

et al. 2013

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“…Based on earlier studies (Rosman and DeLaeter , , Loss et al . , , Sands and Rosman ), Wombacher et al . () proposed a two‐stage column chemical procedure, involving a strongly basic anion exchange resin and an Eichrom TRU Spec resin, to isolate Cd from geological matrices.…”

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confidence: 94%

Cadmium Isotope Ratios of Standard Solutions and Geological Reference Materials Measured by MC‐ICP‐MS

Liu

et al. 2018

Geostandard Geoanalytic Res

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We report high‐precision cadmium isotope ratios for a series of standard solutions and geological reference materials for interlaboratory comparison. Complete separation of Cd from a matrix in geological samples was achieved using AG MP‐1M anion exchange resin with > 97.8% recovery. Cadmium isotope ratios were measured by both Neptune plus multi‐collector‐inductively coupled plasma‐mass spectrometry (MC‐ICP‐MS) and Nu Plasma II MC‐ICP‐MS at low‐resolution mode. Both sample calibrator bracketing (SSB) and double‐spike techniques (DS) were utilised for mass bias correction. Cadmium isotope ratio data of standard solutions (BAM I012 Cd, SPEX Cd, Alfa Aesar Cd, GSB Cd) and geological reference materials (GSS‐1, GXR‐1, GXR‐2, GSD‐12, NIST SRM 2711a) are reported relative to Cd solution (NIST SRM 3108). The intermediate precision over a three‐year period was better than ± 0.09‰ (2s) for δ114Cd/110Cd and ± 0.06‰ (2s) for δ112Cd/110Cd ratios. SPEX Cd was used as a secondary reference material for Cd isotopic measurement with a δ114/110CdNIST SRM 3108 value of −2.13 ± 0.09‰ (2s). The soil reference material NIST SRM 2711a has a significantly heavier isotopic composition than other soil materials, GXR‐1, GXR‐2 and GSS‐1. New recommended values are presented for future interlaboratory calibration.

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“…100 ppb (Taylor and Mc Lennan 1995;Wedepohl 1995). Recently, comparable Cd concentrations have been measured in geostandard basalts and diabases (Sands and Rosman 1997). A peridotite has been found by these authors to be strongly Cddepleted (16 ppb), whereas they measured a higher Cd concentration in a marine mud (205 ppb; ppb refers to ppbw or ng g -1 ).…”

Section: Concentrationsmentioning

confidence: 54%

“…Several chemical procedures for Cd extraction have been published previously De Laeter 1974, 1975;Rosman et al 1980;Sands and Rosman 1997), but they are dedicated to meteorites, lunar soils, and Cd-bearing minerals. In this paper, an alternative method for Cd extraction is presented: it is more time-consuming, but allows to obtain high-purity Cd loads from terrestrial materials (silicates, soils, limestones, plants, etc…).…”

Section: Part Imentioning

confidence: 99%

“…Indeed, the relatively low boiling points of Cd (767°C) and of some Cd coumpounds do not rule out isotopic fractionation processes resulting from a simple Rayleigh distillation law, for example during magmatogenesis. Certainly, anthropogenic processes could also fractionate Cd isotopically by such a mechanism (refuse incinerators), but it should be noticed that fractionated Cd measured in meteorites and in the moon is unlikely to originate from a Rayleigh distillation process only (Rosman and De Laeter 1988;Sands and Rosman 1997).…”

Section: Raw CD Isotopic Datamentioning

confidence: 99%

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Isotopic Composition of Cd in Terrestrial Materials: New Insights from a High-Precision, Double Spike Analytical Method

Innocent¹

Environmental Chemistry

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A high-precision method for determining the isotopic composition of cadmium ( 110 Cd, 112 Cd, 114 Cd, 116 Cd) has been developed and applied to study natural and anthropogenic materials such as sedimentary rocks, soils, corals and mining waste. Preliminary results obtained on sedimentary rocks, e.g. jurassic limestone, shale and greywacke, suggest the existence of natural variations in Cd isotopic ratios. The origin of this variation is likely to result mainly from a mass-dependent isotopic fractionation process. It is suggested that variation in the isotopic composition of Cd may also occur in materials of anthropogenic origin. Very low Cd concentrations (about 10 ppbw) are reported for the clastic rocks, whereas the limestone displays a much higher concentration (75 ppbw), suggesting that Cd may be trapped during diagenesis.

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Cd, Gd and Sm Concentrations in BCR‐1, BHVO‐1, BIR‐1, DNC‐1, MAG‐1, PCC‐1 and W‐2 by Isotope Dilution Thermal Ionisation Mass Spectrometry

Cited by 19 publications

References 16 publications

Effect of salinity on the skeletal chemistry of cultured scleractinian zooxanthellate corals: Cd/Ca ratio as a potential proxy for salinity reconstruction

Effect of salinity on the skeletal chemistry of cultured scleractinian zooxanthellate corals: Cd/Ca ratio as a potential proxy for salinity reconstruction

Cadmium Isotope Ratios of Standard Solutions and Geological Reference Materials Measured by MC‐ICP‐MS

Isotopic Composition of Cd in Terrestrial Materials: New Insights from a High-Precision, Double Spike Analytical Method

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