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Kiel device

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The Kiel device is a laboratory instrument used for the analysis of stable isotopes in various materials, such as water, carbonates, and organic compounds. It serves as a preparatory system for stable isotope ratio mass spectrometry (IRMS) analysis. The Kiel device automates the process of converting the sample material into a gas suitable for IRMS analysis, ensuring consistent and reliable measurements.

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Kiel IV carbonate device (7 citations)

2 protocols using kiel device

1

Nu Carb Sample Digestion System

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The second type of acid digestion system that we use is a commercial Nu Carb sample digestion system (Nu Instruments Ltd) that can react samples typically of 0.25–0.5 mg of pure CaCO3. The controlling software, Perspective Stable Gas Control Software, was also developed by Nu Instruments. Samples were reacted for 20 min at 70°C in individual reaction vials that eliminate potential memory effects from a CAB. This is similar to a Thermo Fisher Scientific Kiel device, in which both the Nu Carb and the Kiel device add acid to carbonate within individual reaction vessels to facilitate the digestion process. The produced gases are then purified immediately after digestion in a series of temperature‐controlled, liquid‐nitrogen‐cooled cold fingers and the Adsorption Trap (AdTrap), an in‐line, short GC column packed with Porapak Q 50/80 and silver wool, before being introduced into the mass spectrometer dual inlet. This system operates entirely under vacuum without a carrier gas for the GC column gas separation step. The column is relatively small compared with that on the autoline and is held at −30°C for the duration of the CO2 transit. The short‐length column allows only for use of relatively small samples of mostly pure carbonate.
Upadhyay D., Lucarelli J., Arnold A., Flores R., Bricker H., Ulrich R.N., Jesmok G., Santi L., Defliese W., Eagle R.A., Carroll H.M., Bateman J.B., Petryshyn V., Loyd S.J., Tang J., Priyadarshi A., Elliott B, & Tripati A. (2021). Carbonate clumped isotope analysis (Δ47) of 21 carbonate standards determined via gas‐source isotope‐ratio mass spectrometry on four instrumental configurations using carbonate‐based standardization and multiyear data sets. Rapid Communications in Mass Spectrometry, 35(17), e9143.
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2

Automated Carbonate Sample Digestion and Analysis

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The second type of acid digestion system that we use is a commercial Nu Carb sample digestion system (Nu Instruments Ltd) that can react samples typically of 0.25–0.5 mg of pure CaCO3. The controlling software, Perspective Stable Gas Control Software, was also developed by Nu Instruments. Samples were reacted for 20 min at 70°C in individual reaction vials that eliminate potential memory effects from a CAB. This is similar to a Thermo Fisher Scientific Kiel device, in which both the Nu Carb and the Kiel device add acid to carbonate within individual reaction vessels to facilitate the digestion process. The produced gases are then purified immediately after digestion in a series of temperature-controlled, liquid-nitrogen-cooled cold fingers and the Adsorption Trap (AdTrap), an in-line, short GC column packed with Porapak Q 50/80 and silver wool, before being introduced into the mass spectrometer dual inlet. This system operates entirely under vacuum without a carrier gas for the GC column gas separation step. The column is relatively small compared with that on the autoline and is held at −30°C for the duration of the CO2 transit. The short-length column allows only for use of relatively small samples of mostly pure carbonate.
Upadhyay D., Lucarelli J., Arnold A., Flores R., Bricker H., Ulrich R.N., Jesmok G., Santi L., Defliese W., Eagle R.A., Carroll H.M., Bateman J.B., Petryshyn V., Loyd S.J., Tang J., Priyadarshi A., Elliott B, & Tripati A. (2021). Carbonate clumped isotope analysis (Δ47) of 21 carbonate standards determined via gas‐source isotope‐ratio mass spectrometry on four instrumental configurations using carbonate‐based standardization and multiyear data sets. Rapid Communications in Mass Spectrometry, 35(17), e9143.
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