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last update
2007-07-13
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Facilities:
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ThermoFinnigan DeltaPlus
XP Stable Isotope Ratio Mass-Spectrometer(IRMS).
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Costech EA
is used to combust solid
inorganic/organic samples in continuous flow for analysis of
nitrogen and carbon isotopes. |
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Gasbench II
is used for high precision
on-line isotope ratio determination of gas species, waters and
carbonates. 18O/16O ratio in water is obtained
through equilibration with CO2 gas, and incase of carbonates
both
18O/16O and 13C/12C ratios
are measured for CO2 gas extracted from carbonate samples
reacting with phosphoric acid at a constant temperature. |
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TC/EA (High Temperature Conversion/pyrolysis)
is linked to the IRMS to obtain on-line oxygen and hydrogen isotope
compos-ition of both solid and liquid bulk samples. At an operating
temperature of 1450 ºC oxygen present in a sample/compound is convert-ed
to CO, and hydrogen in a compound is converted to H2, and
these gases are then sent to the IRMS for measurement. |
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Other
devices:
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Micro Balance:
Orion Cahn C-23 microbalance with a precision of 1
mg. |
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Fisher Scientific Drying Oven. |
| Coming soon |
Vacuum System: to dry samples under vacuum. |
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