Characterization of calcified reference materials for assessing the reliability of manganese determinations in teeth and bone

Praamsma, Meredith L.; Parsons, Patrick J.

doi:10.1039/c4ja00049h

Cited by 11 publications

(4 citation statements)

References 22 publications

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“…Each suspension was mixed and homogenized in an agate mortar and then dried at 30 °C for 12 h; the resulting powders were then rehomogenized in the agate mortar. Afterward, 750 mg of each powder was pressed for 1 min under 6 t pressure into 12 mm diameter tablets . These “standard tablets”, each at a different elemental concentration (Table ), were used to calibrate the LA-ICPMS following the analytical procedure discussed in Nardelli et al and better detailed in the following .…”

Section: Materials and Methodsmentioning

confidence: 99%

“…Afterward, 750 mg of each powder was pressed for 1 min under 6 t pressure into 12 mm diameter tablets. 30 These "standard tablets", each at a different elemental concentration (Table 1), were used to calibrate the LA-ICPMS following the analytical procedure discussed in Nardelli et al and better detailed in the following. 31 Likewise, 300 mg of each powder was employed to calibrate XRF following an approach like those reported in Castellini et al 32 LA-ICPMS Calibration.…”

Section: Acs Omegamentioning

confidence: 99%

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How Much Can We Trust Major Element Quantification in Bioapatite Investigation?

et al. 2019

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Bioapatite is probably the key factor in the unreplicated success of vertebrates. Chemical data on bioapatite composition can be achieved on a solid sample by using different analytical tools such as spectroscopic and spectrometric methods. As analytical outputs can be affected by the physical–chemical characteristics of the sample matrix, an internal standard is usually required to correct and validate the results. Bioapatite lattice can accommodate iso- and heterovalent substitutions during life or diagenesis varying its chemical composition through (geological) time. If on the one hand, this makes bioapatite a unique archive of physical and chemical information for both the living cycle and the events occurring after death, on the other, it excludes the identification of a sole internal standard. Here, we propose a method to measure major element concentration with specific care for P, Ca, Mg, Na, K, Si, Al, and Fe, which are the main substituent atoms in bioapatite, through homemade matrix-matched external calibration standards for laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). We tested the method on living and fossil shark teeth, critically comparing the results obtained using other analytical techniques and certified external standards. We demonstrated that matrix-matched calibration in LA-ICPMS is mandatory for obtaining a reliable chemical characterization even if factors such as matrix aggregation variability, diverse presence of volatile compounds, the fossilization footprint, and the instrumental variability can represent further variability parameters.

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Section: Materials and Methodsmentioning

confidence: 99%

Section: Acs Omegamentioning

confidence: 99%

How Much Can We Trust Major Element Quantification in Bioapatite Investigation?

et al. 2019

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“…It can be noted that the quantitative determination of manganese in calcified materials, including bone and teeth, is still a challenge for the analytical tools because of the structural and chemical complexity of the investigated matrix. 48 The benefits of the commercial W-band EPR instrument for the determination and quantification of manganese starting from ppm and sub-ppm levels in the apatite-like minerals was demonstrated in ref. 49.…”

Section: Ese Epr Of Mn 2+ In the Nanosized Powdersmentioning

confidence: 99%

The Interplay of manganese and nitrate in hydroxyapatite nanoparticles as revealed by pulsed EPR and DFT

Gafurov

Biktagirov

Mamin

et al. 2015

Phys. Chem. Chem. Phys.

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The interplay of oppositely charged substitutions in the structure of hydroxyapatite (HAp) nanopowders is investigated on the atomic level by pulsed electron paramagnetic resonance (EPR) technique and ab initio density functional theory calculations. Benefits of EPR to determine Mn(2+) ions in nano-HAp samples are demonstrated. A simple approach based on the measurements of electron spin relaxation times allowed observing the strong influence of fast-relaxing Mn(2+) ions on the relaxation characteristics of the nitrate ions (NO3(-)/NO3(2-)) incorporated in trace amounts. Based on the results of ab initio calculations, we show the propensity of Mn(2+) and NO3(-)/NO3(2-) to associate within the HAp crystal lattice. This could have a direct impact on the functional properties of the material especially to resorption and ion exchange. Furthermore, such an effect can increase a propensity of undesired impurities to incorporate into the doped nanocrystals.

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“…In 2014, several approaches were described to develop new RMs for microanalytical research by preparing nano‐particulate pressed powder pellets of different powdered RMs or natural materials (Garbe‐Schönberg and Müller , Praamsmaab and Parsons ). These are necessary to enable matrix‐matched calibration in – for example – laser ablation ICP‐MS where, up to the present, mainly glass RMs have been used due to a lack of RMs of different matrices.…”

Section: Scientific Journals From Which Relevant Articles Were Reviewedmentioning

confidence: 99%

Geostandards and Geoanalytical Research Bibliographic Review 2014

Weis

Schwager

Nohl

et al. 2015

Geostandard Geoanalytic Res

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Characterization of calcified reference materials for assessing the reliability of manganese determinations in teeth and bone

Abstract: Robust values for manganese with expanded uncertainties were assigned to several calcified reference materials, which were evaluated for use in LA-ICP-MS analysis.

Cited by 11 publications

References 22 publications

How Much Can We Trust Major Element Quantification in Bioapatite Investigation?

How Much Can We Trust Major Element Quantification in Bioapatite Investigation?

The Interplay of manganese and nitrate in hydroxyapatite nanoparticles as revealed by pulsed EPR and DFT

Geostandards and Geoanalytical Research Bibliographic Review 2014

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