Improved in situ Sr isotopic analysis by a 257 nm femtosecond laser in combination with the addition of nitrogen for geological minerals

Wen, Zhang; Hu, Zhaochu; Liu, Yongsheng; Wu, Tao; Deng, Xiao-Dong; Guo, Jingliang; Zhao, Han

doi:10.1016/j.chemgeo.2017.12.018

Cited by 78 publications

(49 citation statements)

References 76 publications

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“…Neptune or Neptune Plus MC-ICP-MS with either a 193-nm ArF excimer or 257-nm femtosecond laser was employed to measure Sr isotopes at IGGCAS, Beijing and GPMR, Wuhan (Yang et al, 2014(Yang et al, , 2019Zhang et al, 2018Zhang et al, , 2020. A spot size of 60-160 µm was used with a 6-8 Hz repetition rate and an energy density of ∼8 J cm −2 , depending on the Sr content of sample ( Table 1).…”

Section: In Situ Sr Isotopic Analysis By Laser Ablation Mc-icp-msmentioning

confidence: 99%

“…Finally, the 87 Sr/ 86 Sr ratios were calculated and normalized from the interference-corrected 86 Sr/ 88 Sr ratio using the exponential law. The whole data reduction procedure was performed using an in-house Excel Visual Basic for Applications (VBA) macro program (Horstwood et al, 2008(Horstwood et al, , 2016Zhang et al, 2018;Zhang et al, 2020).…”

Section: In Situ Sr Isotopic Analysis By Laser Ablation Mc-icp-msmentioning

confidence: 99%

“…Moreover, in situ Sr isotopic analysis can decipher more significant information than common whole rock analysis in high resolution. Currently, LA-MC-ICP-MS is a well-developed technique to measure 87 Sr/ 86 Sr in relatively high Sr geological samples (>500 μg g −1 Sr, e.g., apatite, perovskite, plagioclase, eudialyte, bastnaesite) (Yang et al, 2009a , 2011 , 2019 ; Wu et al, 2010 ; Kimura et al, 2013 ; Konter and Storm, 2014 ; Tong et al, 2016 ; Zhang et al, 2018 ). Nevertheless, for low Sr-content minerals, such as clinopyroxene from most peridotite xenoliths, it is still challenging (Waight et al, 2002 ; Woodhead et al, 2005 ; Copeland et al, 2008 ; Vroon et al, 2008 ; Jochum et al, 2009 ; Lin et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

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Natural Clinopyroxene Reference Materials for in situ Sr Isotopic Analysis via LA-MC-ICP-MS

Zhao

Roux

et al. 2020

Front. Chem.

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Clinopyroxene is a major host mineral for lithophile elements in the mantle lithosphere, and therefore, its origin is vital for constraints on mantle evolution and melt generation. In situ Sr isotopic measurement of clinopyroxene has been available since the recent development of laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) in the 2000s. Therefore, there is an increasing demand for natural clinopyroxene reference materials for Sr isotope microanalysis. In this contribution, we present six natural clinopyroxene reference materials from South Africa (JJG1424) and China (YY09-47, YY09-04, YY09-24, YY12-01, and YY12-02) for Sr isotope microanalysis. The Sr content of these clinopyroxenes ranges from 50 to 340 μg g−1, which covers most natural clinopyroxene compositions. Homogeneity of these potential reference materials were investigated and evaluated in detail over a 2-year period using 193-nm nanosecond and 257-nm femtosecond laser systems coupled to either a Neptune or Neptune Plus MC-ICP-MS. Additionally, the major and trace element of these clinopyroxenes were examined by electron probe microanalyzer (EPMA) as well as solution and laser ICP-MS. The in situ87Sr/86Sr values obtained for the six natural clinopyroxene reference materials agree well with data obtained using the thermal ionization mass spectrometer (TIMS) method. The Sr isotopic stability and homogeneity of these clinopyroxenes make them potential reference materials for in situ Sr microanalysis to correct instrumental fractionation or as quality control materials for analytical sessions. The new Sr isotope data provided here might be beneficial for microbeam analysis in the geochemical community.

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Section: In Situ Sr Isotopic Analysis By Laser Ablation Mc-icp-msmentioning

confidence: 99%

Section: In Situ Sr Isotopic Analysis By Laser Ablation Mc-icp-msmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Natural Clinopyroxene Reference Materials for in situ Sr Isotopic Analysis via LA-MC-ICP-MS

Zhao

Roux

et al. 2020

Front. Chem.

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“…The effect was more pronounced for the rat samples, since these incisors had a much lower Sr/Ca (∼3 × 10 −4 , Figure 7) than the guinea pig incisors (up to 8 × 10 −4 , Figure 7) and are thus, due to their lower Sr content, more prone to such interferences. However, we tried to minimize this effect by adding nitrogen to the sample gas flow, as N 2 is known to reduce potential interferences (Zhang et al, 2018), using a desolvator system, and monitored the accuracy of the 87 Sr/ 86 Sr using several matrix-matched tooth samples with known 87 Sr/ 86 Sr (Willmes et al, 2016). By plotting the accuracy of 87 Sr/ 86 Sr vs. 1/ 88 Sr [V] (Supplementary Figure 2), one would expect a strong linear correlation if polyatomic interferences on m/z = 87 ( 40 Ca 31 P 16 O) will affect the 87 Sr/ 86 Sr (Horstwood et al, 2008;Lugli et al, 2017b).…”

Section: Incorporation Of Sr In the Ever-growing Incisor Enamel (Expementioning

confidence: 99%

Strontium Uptake and Intra-Population 87Sr/86Sr Variability of Bones and Teeth—Controlled Feeding Experiments With Rodents (Rattus norvegicus, Cavia porcellus)

et al. 2020

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Strontium isotopes in biogenic apatite, especially enamel, are widely employed to determine provenance and track migration in palaeontology and archaeology. Body tissues record the 87Sr/86Sr of bioavailable Sr of ingested food and water. To identify non-local individuals, knowledge of the 87Sr/86Sr of a non-migratory population is required. However, varying factors such as tissue turnover rates, feeding selectivity, Sr content, digestibility of food, and the ingestion of mineral dust can influence body tissue 87Sr/86Sr. To evaluate the Sr contribution of diet and water to mammalian hard tissues 87Sr/86Sr, controlled feeding studies are necessary. Here we present 87Sr/86Sr from controlled feeding experiments with two rodent species (Rattus norvegicus, Cavia porcellus). Due to the continuous and fast incremental growth of rat and guinea pig incisors (~0.1 – 0.5 mm/day), their enamel is expected to record isotopic dietary changes. For Experiment-1: Diet Switch, animals were switched from their respective supplier food to a pelleted experimental diet containing either insect-, plant-, or meat-meal and a staggered-sampling approach was used to monitor the 87Sr/86Sr changes in rat incisor enamel and bone over the course of the experiment. In Experiment-2: Basic Diets, separated cohorts (n = 6) of rats and guinea pigs were fed one of the three pelleted diets and received tap water for 54 days. While the rat incisors showed a complete tissue turnover, the slower-growing guinea pig incisors partially retained supplier diet-related isotopic compositions. In addition, one group of rats fed plant-meal pellets received Sr-rich mineral water, demonstrating that drinking water can be an important Sr source in addition to diet. Additionally, a leaching experiment showed that only a small fraction of diet-related Sr is bioavailable. Finally, in Experiment-3: Dust Addition, guinea pigs were fed pellets with and without addition of 4% of isotopically distinct dust (loess or kaolin). Animals that received kaolin-containing pellets displayed increased enamel 87Sr/86Sr. Intra-population 87Sr/86Sr variability within each feeding group was small and thus we conclude that it should not affect interpretations of 87Sr/86Sr in provenance studies. However, the differences between bulk food and leachate 87Sr/86Sr highlight the importance of Sr bioavailability for provenance studies and Sr isoscapes.

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“…A typical data acquisition cycle consisted of a 30-s measurement of the Kr gas blank with the laser off, followed by 60 s of measurement with the laser on. In this work, YY09-47, YY09-24, and YY12-01 clinopyroxene samples were measured after every 10 unknown samples for external calibration (Yang et al, 2014(Yang et al, , 2019Lin et al, 2016;Zhang et al, 2018Zhang et al, , 2020.…”

Section: In Situ Sr Isotopic Analysis By Laser Ablation Mc-icp-msmentioning

confidence: 99%

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Improved in situ Sr isotopic analysis by a 257 nm femtosecond laser in combination with the addition of nitrogen for geological minerals

Cited by 78 publications

References 76 publications

Natural Clinopyroxene Reference Materials for in situ Sr Isotopic Analysis via LA-MC-ICP-MS

Natural Clinopyroxene Reference Materials for in situ Sr Isotopic Analysis via LA-MC-ICP-MS

Strontium Uptake and Intra-Population 87Sr/86Sr Variability of Bones and Teeth—Controlled Feeding Experiments With Rodents (Rattus norvegicus, Cavia porcellus)

Data_Sheet_1.XLS

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