Trace elements in tissues of a worker affected by rare earths pneumoconiosis a study carried out by neutron activation analysis

Pietra, R.; Sabbioni, E.; Ubertalli, L.; Orvini, E.; Vocaturo, Giuseppe; Colombo, F.; Zanoni, Mariagrazia

doi:10.1007/bf02219754

Cited by 21 publications

(9 citation statements)

References 6 publications

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“…22 The results of this study show that Nd concentration in enamel is generally lower than in other human tissues such as hair, nails, bone, blood, and soft tissues (see Table 2), although low values have also been reported for hair, 36 urine and blood. 35 The mean Nd concentration in rib bone (11 ppb) 39 is more than three times higher than in enamel. Variation in Nd concentrations in human tissues may be the result of different formation times of the tissues.…”

Section: Nd Elemental Concentrationmentioning

confidence: 98%

TIMS analysis of neodymium isotopes in human tooth enamel using 1013 Ω amplifiers

Plomp¹,

Holstein²,

Koornneef³

et al. 2018

Preprint

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Human provenance studies employing isotope analysis are essential in archaeological and forensic sciences but current applications provide limited spatial resolution. This study reports on the potential of neodymium isotope composition (143Nd/144Nd) to improve human provenancing capabilities. Human tissues contain very low (<0.1 ppm) neodymium concentrations, such that previous composition analysis was not possible. Additionally, Nd composition analysis in human enamel is hindered by Ca in the sample matrix. A modified Nd chromatographic separation technique is reported here, which removes large Ca quantities and accommodates large sample sizes (300-1000 mg). Verification of the modified chromatographic procedure was achieved using an internal synthetic tooth standard. These advancements allow for high precision Nd isotope composition analysis on ~500 mg of tooth enamel, or >100 pg of Nd, by thermal ionization mass spectrometry (TIMS) using 1013 Ω resistors. Neodymium concentrations in enamel from third molars of modern Dutch residents range between 0.1-21.0 ppb (n = 23). The 143Nd/144Nd values for Amsterdam (0.51204-0.51259, n = 12) and Rotterdam (0.51187-0.51239, n = 8) are significantly different (P value = 0.02), demonstrating the potential of neodymium isotope composition to provide improved spatial resolution. Further assessment of Nd composition in enamel of residents from other geological contexts is required to better understand the human provenance capabilities of neodymium.

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Section: Nd Elemental Concentrationmentioning

confidence: 98%

TIMS analysis of neodymium isotopes in human tooth enamel using 1013 Ω amplifiers

Plomp¹,

Holstein²,

Koornneef³

et al. 2018

Preprint

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“…(7) India: Samanta et al (2004), fingernails, n = 33, ICP-MS method. (8) Italy: Pietra et al (1985), fingernails, n = 4, RNAA method. Iyengar et al (1978), compilation of nail values.…”

Section: Elemental Concentrations In Fingernailsmentioning

confidence: 99%

Neutron Activation Analysis and Assessment of Trace Elements in Fingernail from Residents of Tokyo, Japan

Wee¹,

Ebihara²

2017

JSM

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“…Generally, older geological depositions have lower 143 Nd/ 144 Nd ratios compared to recently formed deposits, with 143 Nd/ 144 Nd ratios typically ranging between 0.510 and 0.514 [40]. Neodymium isotope ratios are transferred from rocks to the vegetation and bodies of water, entering the human body through diet, inhalation and potentially dermal contact [19,41,42]. It is expected that Nd isotopes are not isotopically fractionated during their uptake by the human body, thus reflecting the environmental ratios of the food, water and dust consumed [37,39].…”

Section: Isotope Methods Backgroundmentioning

confidence: 99%

Evaluation of neodymium isotope analysis of human dental enamel as a provenance indicator using 1013 Ω amplifiers (TIMS)

et al. 2019

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Human provenance studies employing isotopic analysis have become an essential tool in forensic and archaeological sciences, with multi-isotope approaches providing more specific location estimates compared to single isotope studies. This study reports on the human provenancing capability of neodymium isotopes ( 143 Nd/ 144 Nd), a relatively conservative tracer in the environment. Neodymium isotope ratios have only recently been determined on human remains due to low concentrations in human dental enamel (ppb range), requiring thermal ionisation mass spectrometry (TIMS) using 10 13 Ω resistors. Dental elements (third molars) from 20 individuals born and raised in the Netherlands were analysed for Nd concentration ( n = 12) and Nd isotope ratios ( n = 15). The geological control on Nd isotope composition was examined using coupled Nd-Sr isotope analysis of the same third molar. Teeth from different geological environments were also analysed (Caribbean, Columbian, and Icelandic, n = 5). Neodymium elemental concentrations in dental elements ranged between 0.1 and 7.9 ppb (median 0.5 ppb). The Dutch 143 Nd/ 144 Nd ratios of the provinces of Limburg and Friesland were between 0.5118 and 0.5121, with Dutch 87 Sr/ 86 Sr ratios in agreement with the previously established local range (0.708–0.710). The current findings were compared to previously published results on Nd concentration and composition from Dutch individuals. The concentration of Nd and 143 Nd/ 144 Nd ratios were weakly correlated (R 2 = 0.47, n = 17) in Dutch human dental enamel. The majority ( n = 25, 83.3%) of individuals had Nd and Sr isotope values isotopically indistinguishable from the geological environment in which their third molars formed and mineralised. However, the Nd isotope ratios of the Icelandic individual and several Dutch individuals ( n = 4) suggested that Nd in enamel is not solely influenced by geological environment. In order for neodymium isotopes to be quantitatively applied in forensic and archaeological settings further analyses of individuals from various geographical regions with well-defined dietary Nd isotope data are required.

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Trace elements in tissues of a worker affected by rare earths pneumoconiosis a study carried out by neutron activation analysis

Cited by 21 publications

References 6 publications

TIMS analysis of neodymium isotopes in human tooth enamel using 1013 Ω amplifiers

TIMS analysis of neodymium isotopes in human tooth enamel using 1013 Ω amplifiers

Neutron Activation Analysis and Assessment of Trace Elements in Fingernail from Residents of Tokyo, Japan

Evaluation of neodymium isotope analysis of human dental enamel as a provenance indicator using 1013 Ω amplifiers (TIMS)

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Trace elements in tissues of a worker affected by rare earths pneumoconiosis a study carried out by neutron activation analysis

Cited by 21 publications

References 6 publications

TIMS analysis of neodymium isotopes in human tooth enamel using 1013 Ω amplifiers

TIMS analysis of neodymium isotopes in human tooth enamel using 1013 Ω amplifiers

Neutron Activation Analysis and Assessment of Trace Elements in Fingernail from Residents of Tokyo, Japan

Evaluation of neodymium isotope analysis of human dental enamel as a provenance indicator using 1013 Ω amplifiers (TIMS)

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Evaluation of neodymium isotope analysis of human dental enamel as a provenance indicator using 1013 Ω amplifiers (TIMS)