Elimination of boron memory effect in inductively coupled plasma-mass spectrometry by ammonia gas injection into the spray chamber during analysis

Al-Ammar, Assad S.; Gupta, Rajesh K.; Barnes, Ramon M.

doi:10.1016/s0584-8547(00)00197-x

Cited by 64 publications

(62 citation statements)

References 5 publications

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“…3 mL min −1 (AlAmmar et al, 2000;Foster, 2008). The addition of ammonia gas to the spray chamber ensures that the analyte remains alkaline, which prevents volatile boron from recondensing in the chamber during analysis (Al-Ammar et al, 2000). The measured B isotope signal of the rinse blank was then subtracted from the B isotope ratios in order to monitor B washout, as suggested by Foster (2008).…”

Section: Ammonia Additionmentioning

confidence: 99%

δ11B as monitor of calcification site pH in divergent marine calcifying organisms

et al. 2018

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Abstract. The boron isotope composition (δ 11 B) of marine biogenic carbonates has been predominantly studied as a proxy for monitoring past changes in seawater pH and carbonate chemistry. However, a number of assumptions regarding chemical kinetics and thermodynamic isotope exchange reactions are required to derive seawater pH from δ 11 B biogenic carbonates. It is also probable that δ 11 B of biogenic carbonate reflects seawater pH at the organism's site of calcification, which may or may not reflect seawater pH. Here, we report the development of methodology for measuring the δ 11 B of biogenic carbonate samples at the multicollector inductively coupled mass spectrometry facility at Ifremer (Plouzané, France) and the evaluation of δ 11 B CaCO 3 in a diverse range of marine calcifying organisms reared for 60 days in isothermal seawater (25 • C) equilibrated with an atmospheric pCO 2 of ca. 409 µatm. Average δ 11 B CaCO 3 composition for all species evaluated in this study range from 16.27 to 35.09 ‰, including, in decreasing order, coralline red alga Neogoniolithion sp. (35.89 ± 3.71 ‰), temperate coral Oculina arbuscula (24.12 ± 0.19 ‰), serpulid worm Hydroides crucigera (19.26 ± 0.16 ‰), tropical urchin Eucidaris tribuloides (18.71 ± 0.26 ‰), temperate urchin Arbacia punctulata (16.28 ± 0.86 ‰), and temperate oyster Crassostrea virginica (16.03 ‰). These results are discussed in the context of each species' proposed mechanism of biocalcification and other factors that could influence skeletal and shell δ 11 B, including calcifying site pH, the proposed direct incorporation of isotopically enriched boric acid (instead of borate) into biogenic calcium carbonate, and differences in shell/skeleton polymorph mineralogy. We conclude that the large inter-species variability in δ 11 B CaCO 3 (ca. 20 ‰) and significant discrepancies between measured δ 11 B CaCO 3 and δ 11 B CaCO 3 expected from established relationships between abiogenic δ 11 B CaCO 3 and seawater pH arise primarily from fundamental differences in calcifying site pH amongst the different species. These results highlight the potential utility of δ 11 B as a proxy of calcifying site pH for a wide range of calcifying taxa and underscore the importance of using species-specific seawater-pH-δ 11 B CaCO 3 calibrations when reconstructing seawater pH from δ 11 B of biogenic carbonates.

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Section: Ammonia Additionmentioning

confidence: 99%

δ11B as monitor of calcification site pH in divergent marine calcifying organisms

et al. 2018

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“…For the ammonia addition method, a dual inlet PFA Teflon spray chamber was used with an ESI PFA 50 μL/min nebuliser to add ammonia gas at a rate of ~3 mL/min (Al-Ammar et al, 2000;Foster, 2008). The addition of ammonia gas to the spray chamber ensures that the analyte remains alkaline, which prevents volatile boron from recondensing in the chamber during analysis (Al-Ammar et al, 2000).…”

Section: Ammonia Addition 265mentioning

confidence: 99%

“…The addition of ammonia gas to the spray chamber ensures that the analyte remains alkaline, which prevents volatile boron from recondensing in the chamber during analysis (Al-Ammar et al, 2000). The measured B signal of the rinse blank was then subtracted from the B isotope ratios in order to monitor B wash out, as suggested by Foster (2008).…”

Section: Ammonia Addition 265mentioning

confidence: 99%

δ11B as monitor of calcification site pH in marine calcifying organisms

Sutton

Liu

Ries

et al. 2017

Preprint

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Abstract. The isotope composition of boron (B) in marine biogenic carbonates has been predominantly studied as a proxy 15 for monitoring past changes in seawater pH and carbonate chemistry. In order to derive seawater pH from boron isotope ratio data, a number of assumptions related to chemical kinetics and themodynamic isotope exchange reactions are necessary. Furthermore, the boron isotope composition (

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“…Optimizando las dos primeras variables se pretendía eliminar el efecto de memoria [5,19] y la tercera variable permitió estudiar el efecto matriz causado por el calcio y el sodio sobre la medida de boro [4,9].…”

Section: Determinación De Boro Mediante Icp-oesunclassified

“…Así mismo, se han encontrado diversos trabajos [5][6][7][8][9][10][11][12][13][14][15] relacionados con el análisis de boro en otras matrices, donde se detallan las técnicas y métodos más adecuados, cómo eliminar el efecto de memoria o cómo realizar la extracción de boro [16][17][18][19].…”

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Caracterización química, mineralógica y térmica de boratos naturales y sintéticos

Gazulla¹,

Gómez²,

Orduna³

et al. 2005

Bol. Soc. Esp. Ceram. Vidr.

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En este trabajo se ha establecido una metodología para caracterizar boratos naturales y sintéticos utilizados como materia prima en la industria cerámica, ya que no se ha encontrado en la bibliografía información detallada al respecto. Se han analizado cuatro boratos naturales, tres colemanitas de diferente riqueza y una ulexita, así como dos boratos sintéticos, un ácido bórico y un bórax pentahidratado. Las técnicas analíticas utilizadas para la caracterización han sido: espectrometría de fluorescencia de rayos X (FRX), espectrometría de emisión atómica de plama acoplado inductivamentes (ICP-OES), potenciometría, difracción de rayos X (DRX), termogravimetría (TG) y análisis térmico diferencial (ATD). En la caracterización química se han analizado los elementos Si, Al, Fe, Ca, Mg, Na, K, Ti, Sr, As y S mediante FRX y los elementos B y F se han analizado por varios métodos y se han comparado los resultados obtenidos. En la caracterización mineralógica, se han determinado los minerales de boro y otros minerales presentes que acompañan a éstos y se ha estimado su concentración mediante un análisis racional. Los minerales de boro encontrados han sido: colemanita y ulexita, y además se han identificado: calcita, dolomita, cuarzo, celestina y oropimente. En la caracterización térmica se estudiaron las pérdidas de peso y las transformaciones térmicas características de las muestras objeto de estudio, cuando eran sometidas a un ciclo de calentamiento controlado. Palabras clave: Caracterización, colemanita, ulexita, boratos sintéticos, espectrometría FRX, espectrometría ICP-OES, DRX, análisis térmico, ATD, TG Chemical, mineralogical and thermal characterisation of natural and synthetic boratesThe present study establishes a methodology for characterising natural and synthetic borates used as raw materials in the ceramic industry, since detailed information on this subject is unavailable in the literature. Four natural borates, three colemanites of different richness and one ulexite, were analysed in addition to two synthetic borates, a boric acid and a borax pentahydrate. The following analytical techniques were used for the characterisation: X-ray fluorescence (XRF) spectrometry, inductively coupled plasma-atomic emission spectrometry (ICP-OES), potentiometry, X-ray diffraction (XRD), thermogravimetry (TG), and differential thermal analysis (DTA). In the chemical characterisation, the elements Si, Al, Fe, Ca, Mg, Na, K, Ti, Sr, As and S were analysed by XRF, B by ICP-AES and potentiometry and F by potentiometry ISE and XRF. In the mineralogical characterisation, the boron minerals and the accessory minerals were determined and their concentration was estimated by rational analysis. The boron minerals found were colemanite, ulexite, boric acid and borax pentahydrate and the accessory minerals were calcite, dolomite, quartz, celestine and orpiment. In the thermal characterisation, the samples were subjected to a controlled heating cycle and the thermal weight losses and characteristic transformations of the samples were s...

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Elimination of boron memory effect in inductively coupled plasma-mass spectrometry by ammonia gas injection into the spray chamber during analysis

Cited by 64 publications

References 5 publications

<i>δ</i><sup>11</sup>B as monitor of calcification site pH in divergent marine calcifying organisms

<i>δ</i><sup>11</sup>B as monitor of calcification site pH in divergent marine calcifying organisms

δ<sup>11</sup>B as monitor of calcification site pH in marine calcifying organisms

Caracterización química, mineralógica y térmica de boratos naturales y sintéticos

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Elimination of boron memory effect in inductively coupled plasma-mass spectrometry by ammonia gas injection into the spray chamber during analysis

Cited by 64 publications

References 5 publications

&lt;i&gt;δ&lt;/i&gt;&lt;sup&gt;11&lt;/sup&gt;B as monitor of calcification site pH in divergent marine calcifying organisms

&lt;i&gt;δ&lt;/i&gt;&lt;sup&gt;11&lt;/sup&gt;B as monitor of calcification site pH in divergent marine calcifying organisms

δ&lt;sup&gt;11&lt;/sup&gt;B as monitor of calcification site pH in marine calcifying organisms

Caracterización química, mineralógica y térmica de boratos naturales y sintéticos

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<i>δ</i><sup>11</sup>B as monitor of calcification site pH in divergent marine calcifying organisms

<i>δ</i><sup>11</sup>B as monitor of calcification site pH in divergent marine calcifying organisms

δ<sup>11</sup>B as monitor of calcification site pH in marine calcifying organisms