Strontium concentrations and isotope ratios in enamel of healthy and carious teeth in southern Shaanxi, China

Li, Zixia; He, Maoyong; Peng, Bin; Jin, Zhangdong

doi:10.1002/rcm.6646

Cited by 12 publications

(6 citation statements)

References 23 publications

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“…Acid‐cleaned glass columns (4‐6 mm in diameter) loaded with Sr Spec resin was used to isolate Sr from potential interference elements. Although 8 mL of 3 mol/L HNO 3 has been shown to adequately isolate Sr from Rb during column separation, 8 mol/L HNO 3 was selected to avoid any elemental tailing and maximize the separation of other matrix elements . The method for Sr separation of dried wheat, soil and water samples is an optimized process (Table ).…”

Section: Methodsmentioning

confidence: 99%

The determination and application of ⁸⁷Sr/⁸⁶Sr ratio in verifying geographical origin of wheat

Liu

Wei

et al. 2017

J. Mass Spectrom.

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As Sr/ Sr ratio plays a significant role in authenticating the geographical origin of foodstuff, it is important to identify where the Sr/ Sr signature in food comes from, and the methods of Sr/ Sr ratio analysis in food and environmental samples. Wheat with three genotypes, soil and groundwater samples were collected from three regions of China during harvest time of 2014. The Sr/ Sr ratios in the samples were determined by thermal ionization mass spectrometer in order to investigate the possible source of Sr/ Sr in wheat, and the concentrations of Rb and Sr in wheat and soils were also detected by inductively coupled plasma mass spectrometry and combined with Sr/ Sr ratio in order to trace the geographical origin of wheat. The Sr/ Sr ratio, the contents Rb and Sr, and Rb/Sr ratio of wheat and soil samples showed significant differences among three regions. The Sr/ Sr ratios and the concentrations of Rb and Sr in soils were higher than those in corresponding wheat. The Sr/ Sr ratio in wheat was identical to that corresponding soil NH NO extracts (labile fraction of soil) and groundwater. Wheat uptake more Rb than Sr. 3D distribution of Sr/ Sr, Rb and Sr could identify wheat samples from different regions clearly. The Sr/ Sr ratio of wheat reflects the Sr/ Sr ratio of the associated environment including soil and groundwater. It is expected that the use the parameters of Sr/ Sr ratio, the contents of Rb and Sr will allow to trace geographical origin of wheat. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Methodsmentioning

confidence: 99%

The determination and application of ⁸⁷Sr/⁸⁶Sr ratio in verifying geographical origin of wheat

Liu

Wei

et al. 2017

J. Mass Spectrom.

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“…Highly precise and accurate isotopic measurements are urgently required in multiple scientific areas such as the redefinition of the SI units, geochemistry, environment, geology, agriculture, nuclear science, archaeology, etc. Multi‐collector thermal ionization mass spectrometry (MC‐TIMS) is one of the state‐of‐the‐art techniques for high‐quality isotope analysis because its sources of uncertainty are relatively small and well understood .…”

Section: Introductionmentioning

confidence: 99%

Investigation of the crucial factors affecting accurate measurement of strontium isotope ratios by total evaporation thermal ionization mass spectrometry

Song

Wang

et al. 2019

Rapid Comm Mass Spectrometry

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Rationale: An absolute method that does not require calibration is very important in several areas of isotope analysis due to the shortage of suitable certified reference materials (CRMs). As total evaporation thermal ionization mass spectrometry (TE-TIMS) theoretically overcomes mass fractionation through integrating the ion currents till the sample on the filament is completely exhausted, it could be an absolute method that does not require the use of CRMs for calibration. However, the lack of reliable method verification and reasonable uncertainty evaluation restricts its extensive application, and these effects need to be quantitatively evaluated. Methods:A series of different amounts of strontium reference material SRM987 was deposited on both single and triple tantalum filament sources, and analyzed by TE-TIMS. The work function of the tantalum filament loaded with the sample was measured by ultraviolet photoelectron spectroscopy. In order to evaluate the change in ion transmission efficiency, we terminated the total evaporation process manually after running for a certain period of time, and recorded the ion beam intensity before and after this operation. Results:The TE results obtained with the triple filament source agreed well with the reference values of SRM987, while the TE results obtained with the single filament source changed significantly with the amount of sample loading. The crucial effect factors on TE-TIMS, including ionization temperature fluctuation, variation of ion transmission efficiency and ion loss before data acquisition, were quantitatively assessed. These factors were used to correct the single filament TE results and the measurement uncertainty was quantitatively evaluated. Conclusions:The reliability of strontium isotopic ratio measurement with triple filament TE-TIMS was verified. The mathematical model for correction of each crucial effect factor was successfully established, thus providing a feasible way for the correction of single filament TE-TIMS results.

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“…The chemical composition of dentin is largely influenced by the life-long deposition of elements, and related to gender and age (Kumagai et al 2012). As well as differences in Sr concentrations having been observed between the sexes (Li et al 2013), positive correlations have been observed between Sr concentrations and an individuals' age (Kumagai et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Variation of Ba/Ca and Sr/Ca Response in Human Hard Tissue from Archaeological Series

Pankowská¹,

Milde²,

Bohunská³

2016

IANSA

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Strontium concentrations and isotope ratios in enamel of healthy and carious teeth in southern Shaanxi, China

Cited by 12 publications

References 23 publications

The determination and application of ⁸⁷Sr/⁸⁶Sr ratio in verifying geographical origin of wheat

The determination and application of ⁸⁷Sr/⁸⁶Sr ratio in verifying geographical origin of wheat

Investigation of the crucial factors affecting accurate measurement of strontium isotope ratios by total evaporation thermal ionization mass spectrometry

Variation of Ba/Ca and Sr/Ca Response in Human Hard Tissue from Archaeological Series

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Strontium concentrations and isotope ratios in enamel of healthy and carious teeth in southern Shaanxi, China

Cited by 12 publications

References 23 publications

The determination and application of 87Sr/86Sr ratio in verifying geographical origin of wheat

The determination and application of 87Sr/86Sr ratio in verifying geographical origin of wheat

Investigation of the crucial factors affecting accurate measurement of strontium isotope ratios by total evaporation thermal ionization mass spectrometry

Variation of Ba/Ca and Sr/Ca Response in Human Hard Tissue from Archaeological Series

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The determination and application of ⁸⁷Sr/⁸⁶Sr ratio in verifying geographical origin of wheat

The determination and application of ⁸⁷Sr/⁸⁶Sr ratio in verifying geographical origin of wheat