Mercury speciation in Scottish raptors reveals high proportions of inorganic mercury in Scottish golden eagles (Aquila chrysaetos): Potential occurrence of mercury selenide nanoparticles

Lancaster, Shaun T.; Peniche, Gabriela; AlZahrani, Abdullah A.; Blanz, Magdalena; Newton, Jason; Taggart, Mark A.; Corns, Warren T.; Krupp, Eva M.; Feldmann, Jörg

doi:10.1016/j.scitotenv.2022.154557

Cited by 10 publications

(2 citation statements)

References 79 publications

(92 reference statements)

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“…Some interesting work has been reported on concerning Hg speciation in 117 liver samples from Scottish raptors. 90 Following lyophilisation, MeHg was extracted with 10 mmol L −1 APDC in 80% MeOH for 30 minutes at 60 °C followed by UAE for 15 minutes and filtration. The extracts were analysed using a previously published LC-PVG-AFS method, with 25% acetic acid and UV used to reduce Hg species to Hg 0 .…”

Section: Elemental Speciation Analysismentioning

confidence: 99%

Atomic spectrometry update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2023

J. Anal. At. Spectrom.

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Section: Elemental Speciation Analysismentioning

confidence: 99%

Atomic spectrometry update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2023

J. Anal. At. Spectrom.

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“…X-ray spectroscopic techniques have been employed to investigate Hg uptake and its 2-dimensional distribution in plants [25], fish [26], and whale brains [27]. LA-ICP-MS mapping experiments focusing on Hg have been reported as well, e.g., analyzing thin sections of plants [28,29], fruit flies [30], glass eels [31], rodent tissues [32], eagle liver tissue [33], and human soft tissues [34]. In most cases, these experiments were carried out on samples with artificially elevated Hg concentrations, e.g., by adding Hg to the animal feed or plant substrate.…”

Section: Introductionmentioning

confidence: 99%

Quantitative mapping of mercury and selenium in mushroom fruit bodies with laser ablation–inductively coupled plasma-mass spectrometry

et al. 2022

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This work describes the development of a novel method for quantitative mapping of Hg and Se in mushroom fruit body tissues with laser ablation coupled to inductively coupled plasma-mass spectrometry (LA-ICP-MS). Different parameters of the protocol for preparation of the standards used for quantification via external calibration were assessed, e.g., the dissolution temperature of gelatin standards and the addition of chitosan and l-cysteine as additives to the gelatin-based calibration droplets to better match the sample matrix. While chitosan was not suited for this purpose, the presence of l-cysteine considerably improved the figures of merit of the calibration, leading to limits of detection of 0.006 and 0.3 µg g−1 for Hg and Se, respectively, at a pixel size of 20 × 20 µm. Further, an in-house reference material, ideally suited for the validation of the method for application to mushroom samples, was successfully prepared from a paste of Boletus edulis. The newly developed method was used to investigate the distribution of Hg and Se in tissue sections of five porcini mushroom individuals of three different species (Boletus edulis, Boletus aereus, and Boletus pinophilus) and one sample of a parasol mushroom (Macrolepiota procera). For one sample, additional areas were ablated at higher spatial resolution, with a laser spot size down to 5 µm, which allows a detailed investigation of the spatial distribution of Hg and Se in mushrooms. Graphical abstract

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Mercury accumulation, distribution, and isotopic composition in tissues of the Collared Scops Owl (Otus lettia)

Jia

Luo

et al. 2023

Acta Geochim

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Mercury speciation in Scottish raptors reveals high proportions of inorganic mercury in Scottish golden eagles (Aquila chrysaetos): Potential occurrence of mercury selenide nanoparticles

Cited by 10 publications

References 79 publications

Atomic spectrometry update: review of advances in elemental speciation

Atomic spectrometry update: review of advances in elemental speciation

Quantitative mapping of mercury and selenium in mushroom fruit bodies with laser ablation–inductively coupled plasma-mass spectrometry

Mercury accumulation, distribution, and isotopic composition in tissues of the Collared Scops Owl (Otus lettia)

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