Application of LA–ICP–MS in polar ice core studies

Reinhardt, Heiko; Kriews, Michael; Miller, Heinrich; Lüdke, C.; Hoffmann, Erwin; Skole, J.

doi:10.1007/s00216-003-1793-5

Cited by 27 publications

(17 citation statements)

References 22 publications

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“…3) from four different solutions at known elemental concentrations and one frozen suspension at different dilutions. This represents an improvement to what has previously been achieved in ice standard preparation (Reinhardt et al, 2003;Wilhelm-Dick, 2008;Sneed et al, 2015). The correlation between the elemental concentrations in the standards and the resulting net signals from cryo-cell LA-ICPMS (in counts per second, cps) is good and follows the expected linear relationship ( Fig.…”

Section: Discussionsupporting

confidence: 52%

“…This external calibration assumes overall comparable ablation characteristics of NGRIP ice and ice standards, which in view of their similar matrix is a satisfactory assumption. Furthermore, using m/z = 17 (OH) as an internal standard following Reinhardt et al (2003) is not feasible because the significantly lower sample consumption of UV-LA relative to IR-LA (Müller et al, 2011) does not result in a background-resolved ICPMS signal at m/z = 17. Ice standards were made in a laminar-flow clean hood (US 10-100, ISO4-5) located in a clean laboratory at RHUL, using an acid-cleaned, custom-made PTFE mould shown in Fig.…”

Section: Methods and Calibrationmentioning

confidence: 99%

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Calibrated cryo-cell UV-LA-ICPMS elemental concentrations from the NGRIP ice core reveal abrupt, sub-annual variability in dust across the GI-21.2 interstadial period

et al. 2017

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Abstract. Several abrupt shifts from periods of extreme cold (Greenland stadials, GS) to relatively warmer conditions (Greenland interstadials, GI) called Dansgaard–Oeschger events are recorded in the Greenland ice cores. Using cryo-cell UV-laser-ablation inductively coupled-plasma mass spectrometry (UV-LA-ICPMS), we analysed a 2.85 m NGRIP ice core section (2691.50–2688.65 m depth, age interval 84.86–85.09 ka b2k, thus covering ∼  230 years) across the transitions of GI-21.2, a short-lived interstadial prior to interstadial GI-21.1. GI-21.2 is a ∼  100-year long period with δ18O values 3–4 ‰ higher than the following ∼  200 years of stadial conditions (GS-21.2), which precede the major GI-21.1 warming. We report concentrations of major elements indicative of dust and/or sea salt (Na, Fe, Al, Ca, Mg) at a spatial resolution of ∼  200 µm, while maintaining detection limits in the low-ppb range, thereby achieving sub-annual time resolution even in deep NGRIP ice. We present an improved external calibration and quantification procedure using a set of five ice standards made from aqueous (international) standard solutions. Our results show that element concentrations decrease drastically (more than 10-fold) at the warming onset of GI-21.2 at the scale of a single year, followed by relatively low concentrations characterizing the interstadial part before gradually reaching again typical stadial values.

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Section: Discussionsupporting

confidence: 52%

Section: Methods and Calibrationmentioning

confidence: 99%

Calibrated cryo-cell UV-LA-ICPMS elemental concentrations from the NGRIP ice core reveal abrupt, sub-annual variability in dust across the GI-21.2 interstadial period

et al. 2017

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“…3) from four 10 different solutions at known elemental concentrations and one frozen suspension at different dilutions. This represents an improvement to what has previously been achieved in ice standard preparation (Reinhardt et al, 2003, Wilhelm-Dick, 2008Sneed et al, 2015). The correlation between the elemental concentrations in the standards and the resulting net-signals from cryocell-LA-ICPMS (in counts per second, cps) is good and follows the expected linear relationship (Fig.…”

Section: Discussionmentioning

confidence: 53%

Calibrated cryo-cell UV-LA-ICPMS elemental concentrations from NGRIP ice core reveal abrupt, sub-annual variability in dust across the interstadial period GI-21.2

Lunga¹,

Müller²,

Rasmussen³

et al. 2016

Preprint

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Several abrupt shifts from periods of extreme cold (Greenland stadials, GS) to relatively warmer conditions (Greenland interstadials, GI) called Dansgaard-Oeschger events are recorded in the Greenland ice cores. Using cryo-cell UV-laserablation inductively-coupled-plasma mass spectrometry (UV-LA-ICPMS), we analysed a 2.85 m NGRIP ice core section (~250 years; 2691.50 -2688.65 m depth) across the transitions of GI-21.2, a short-lived interstadial prior to interstadial GI-15 21.1 (GI-21.2: 84.87 -85.09 ka b2k). GI-21.2 is a ~100-year-long period with δ 18 O values 3 -4‰ higher than the following ~200 years of stadial conditions (GS-21.2), which precede the major GI-21.1 warming. We report concentrations of 'major' elements indicative of dust and/or sea salt (Na, Fe, Al, Ca, Mg) at a spatial resolution of ~200 μm, while maintaining detection limits in the low-ppb range, thereby achieving sub-annual time resolution even in deep NGRIP ice. We present an improved external calibration and quantification procedure using a set of five ice standards made from aqueous 20 (international) standard solutions. Our results show that element concentrations decrease drastically (more than tenfold) at the warming onset of GI-21.2 at the scale of a single year, followed by relatively low concentrations characterizing the interstadial part before gradually reaching again typical stadial values. Introduction Dansgaard-Oeschger (D-O) events are abrupt climatic fluctuations between periods of full glacial conditions (called 25Greenland stadials, GS) and periods of relatively mild conditions during the last glacial (Greenland interstadials, GI) .During stadials, deposition of dust and sea salt in Greenland ice significantly increases. Sea salt aerosols in ice cores are present with several species (e.g. Na + , Cl-and Mg 2+ ) as major impurities. The source of these particles is bubble bursting over open ocean water (Lewis and Schwartz, 2004), where winds lash vigorously the sea surface. The aerosols are then 30 transported and deposited on the ice cap. This phenomenon is strongest during stadials but also varies within a year, with the The Cryosphere Discuss.,

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“…One half of each filter was used for trace element analysis, while another 1/6 of each filter was used for IC analysis (see below). For trace element analyses, we chose a total digestion of the samples to quantitatively dissolve all mineral compounds, which had not been given by simple acidic (HNO 3 ) leaching (Lindberg and Harris, 1983; Reinhardt et al, 2003, table 5 therein). Thus, these aliquots were subjected to a pressurized digestion system (DAS 100, Picotrace) at 200°C in a mixture containing HNO 3 (suprapure, 65%, Merck, Darmstadt, Germany, sub‐boiling bi‐distilled), HF (suprapure, 40%, Merck, Darmstadt, Germany, sub‐boiling bi‐distilled) and H 2 O 2 (suprapure, 30%, Merck, Darmstadt, Germany).…”

Section: Methodsmentioning

confidence: 99%

Seasonal variability of crustal and marine trace elements in the aerosol at Neumayer station, Antarctica

Weller¹,

Wöltjen²,

Piel³

et al. 2008

Tellus B: Chemical and Physical Meteorology

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Atmospheric trace element concentrations were measured from March 1999 to December 2003 at the Air Chemistry Observatory of the German Antarctic station Neumayer, by inductively coupled plasma–quadrupol mass spectrometry (ICP–QMS) and ion chromatography (IC). This continuous five‐year long record derived from weekly aerosol sampling revealed a distinct seasonal summer maximum for elements linked with mineral dust entry (Al, La, Ce, Nd) and a winter maximum for the mostly sea salt derived elements Li, Na, K, Mg, Ca and Sr. The relative seasonal amplitude was around 1.7 and 1.4 for mineral dust (La) and sea salt aerosol (Na), respectively. On average, a significant deviation regarding mean ocean water composition was apparent for Li, Mg and Sr, which could hardly be explained by mirabilite precipitation on freshly formed sea ice. In addition, we observed all over the year, a not clarified high variability of element ratios Li/Na, K/Na, Mg/Na, Ca/Na and Sr/Na. We found an intriguing co‐variation of Se concentrations with biogenic sulphur aerosols (methane sulphonate and non‐sea salt sulphate), indicating a dominant marine biogenic source for this element, linked with the marine biogenic sulphur source.

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Application of LA–ICP–MS in polar ice core studies

Cited by 27 publications

References 22 publications

Calibrated cryo-cell UV-LA-ICPMS elemental concentrations from the NGRIP ice core reveal abrupt, sub-annual variability in dust across the GI-21.2 interstadial period

Calibrated cryo-cell UV-LA-ICPMS elemental concentrations from the NGRIP ice core reveal abrupt, sub-annual variability in dust across the GI-21.2 interstadial period

Calibrated cryo-cell UV-LA-ICPMS elemental concentrations from NGRIP ice core reveal abrupt, sub-annual variability in dust across the interstadial period GI-21.2

Seasonal variability of crustal and marine trace elements in the aerosol at Neumayer station, Antarctica

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