A novel strategy for Cr(III) and Cr(VI) analysis in dietary supplements by speciated isotope dilution mass spectrometry

Unceta, Nora; Astorkia, Maider; Abrego, Zuriñe; Gómez‐Caballero, Alberto; Goicolea, M. Aránzazu; Barrio, Ramón J.

doi:10.1016/j.talanta.2016.03.079

Cited by 41 publications

(22 citation statements)

References 26 publications

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“…4(a)). The inorganic Cr compounds Cr(OH) 3 and Cr(NO 3 ) 3 had the similar spectra. Cr(OH) 3 had a peak at 6009 eV and Cr(NO 3 ) 3 had a narrower peak at 6008 eV ( Fig.…”

Section: 31mentioning

confidence: 88%

“…4(a)). For Cr(III), although Cr(acac) 3 , Cr(OH) 3 and Cr(NO 3 ) 3 are all the Cr(III) compounds, their XANES spectra were different. Cr(acac) 3 had bimodal peaks at 6006 eV and 6017 eV ( Fig.…”

Section: 31mentioning

confidence: 99%

“…4(a)). The XANES spectrum of Cr 2 O 3 differ with Cr(OH) 3 and Cr(NO 3 ) 3 , it had two small and narrow peaks at 6008 eV and 6011 eV, respectively ( Fig. 4(a)).…”

Section: 31mentioning

confidence: 99%

“…It is widely recognized that Cr(VI) is more toxic than Cr(III). 3 To reduce the toxicity of Cr in environments, it is desirable to convert Cr(VI) to Cr(III).…”

Section: Introductionmentioning

confidence: 99%

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Non-biological reduction of Cr(vi) by reacting with humic acids composted from cattle manure

Jiang³

et al. 2017

RSC Adv.

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Previous studies on reduction of Cr(VI) by humic acids (HAs) have seldom used the extracts from composted animal manure. For greater yields of HAs and resource reclamation of animal manure, cattle manure was used as the composting material in our study. The capacity of humic acids extracted from composted cattle manure (HAs cm ) to reduce Cr(VI) was tested under the influence of environmental factors (pH, illumination with light and dissolved oxygen). And the non-biological detoxification mechanism was investigated by using three-dimensional fluorescence, Fourier transform infrared spectroscopy (FTIR) and X-ray absorption near-edge structure (XANES) spectroscopy. The results indicated that Cr(III) after the reduction of Cr(VI) formed an outer sphere complex with -OH and inner sphere complex with carboxyl groups in HAs cm .

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“…4(a)). The inorganic Cr compounds Cr(OH) 3 and Cr(NO 3 ) 3 had the similar spectra. Cr(OH) 3 had a peak at 6009 eV and Cr(NO 3 ) 3 had a narrower peak at 6008 eV ( Fig.…”

Section: 31mentioning

confidence: 88%

Section: 31mentioning

confidence: 99%

“…4(a)). The XANES spectrum of Cr 2 O 3 differ with Cr(OH) 3 and Cr(NO 3 ) 3 , it had two small and narrow peaks at 6008 eV and 6011 eV, respectively ( Fig. 4(a)).…”

Section: 31mentioning

confidence: 99%

“…It is widely recognized that Cr(VI) is more toxic than Cr(III). 3 To reduce the toxicity of Cr in environments, it is desirable to convert Cr(VI) to Cr(III).…”

Section: Introductionmentioning

confidence: 99%

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Non-biological reduction of Cr(vi) by reacting with humic acids composted from cattle manure

Jiang³

et al. 2017

RSC Adv.

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“…Spike studies showed that Cr VI was not stable in the oils. Unceta et al113 extracted the Cr species from dietary supplements by hot 50 mmol L -1 EDTA and, following centrifuging and filtering, separated them by AEC with ICP-MS detection. The column was a Metrosep A Supp 5 250 (250 mm x 4.0 mm, 5 µm), the injection volume was 100 µL and the mobile phase was 2 mmol L -1 EDTA at pH11 at a flow rate of 0.7 mL min -1 .…”

mentioning

confidence: 99%

Atomic Spectrometry Update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2018

J. Anal. At. Spectrom.

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This is the ninth Atomic Spectrometry Update (ASU) to focus on advances in elemental speciation and covers a period of approximately 12 months from December 2015. This ASU review deals with all aspects of the analytical atomic spectrometry speciation methods developed for: the determination of oxidation states; organometallic compounds; coordination compounds; metal and heteroatom-containing biomolecules, including metalloproteins, proteins, peptides and amino acids; and the use of metal-tagging to facilitate detection via atomic spectrometry. The review does not cover fractionation, which is sometimes termed operationally defined speciation. As with all ASU reviews the focus of the research reviewed includes those methods that incorporate atomic spectrometry as the measurement technique. However, because speciation analysis is inherently focused on the relationship between the metal(loid) atom and the organic moiety it is bound to, or incorporated within, atomic spectrometry alone cannot be the sole analytical approach of interest. For this reason molecular detection techniques are also included where they have provided a complementary approach to speciation analysis. As in previous years, As and Se speciation continues to dominate the current literature, with reports of the speciation of Cr and Hg also increasing, and there are an ever rising number of publications concerning the analysis of 'biomolecules'. Whilst most of this work is still the preserve of the research field some methods are now approaching the robustness and rapidity for use in the clinical setting.

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BSA-stabilized silver nanoclusters for efficient photoresponsive colorimetric detection of chromium(VI)

Yuan

Zhao

et al. 2023

Anal Bioanal Chem

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A novel strategy for Cr(III) and Cr(VI) analysis in dietary supplements by speciated isotope dilution mass spectrometry

Cited by 41 publications

References 26 publications

Non-biological reduction of Cr(vi) by reacting with humic acids composted from cattle manure

Non-biological reduction of Cr(vi) by reacting with humic acids composted from cattle manure

Atomic Spectrometry Update: review of advances in elemental speciation

BSA-stabilized silver nanoclusters for efficient photoresponsive colorimetric detection of chromium(VI)

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