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  On-line δ 18O measurement of organic and inorganic substances

Kornexl, B. E., Gehre, M., Höfling, R., & Werner, R. A. (1999). On-line δ 18O measurement of organic and inorganic substances. Rapid Communications in Mass Spectrometry, 13(16), 1685-1693.

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BGC0157.pdf (Publisher version), 119KB
 
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Kornexl, B. E., Author
Gehre, M., Author
Höfling, R., Author
Werner, R. A.1, Author           
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1Service Facility Stable Isotope/Gas Analytics, Dr. W. A. Brand, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497772              

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Free keywords: Isotope composition Online determination Oxygen Nitrate Oxidation Water o-18 Bacterial Nitrogen Matter Spectroscopy/Instrumentation/Analytical Sciences in Current Contents(R)/Physical, Chemical & Earth Sciences
 Abstract: A method for the automated sample conversion and on-line oxygen isotope ratio (delta(18)O) determination for organic and inorganic substances is presented. The samples are pyrolytically decomposed at 1400 degrees C in the presence of nickelized graphite. With the system presented organic as well as inorganic samples such as nitrates, sulphates and phosphates of 50-100 mu g O can be analyzed for their delta(18)O values with a standard deviation usually better than 0,5 parts per thousand, Additionally, carbon isotope ratios of organic substances and nitrogen isotope ratios of inorganic nitrogenous compounds are available in the same sample run. Data for international and some inter-laboratory reference materials are presented to show the accuracy and reliability of the method. The effect of some additives on the CO yield was checked for substances which do not pyrolyze completely. Copyright O 1999 John Whey & Sons, Ltd. [References: 48]

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 Dates: 1999
 Publication Status: Issued
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 Identifiers: Other: BGC0157
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Title: Rapid Communications in Mass Spectrometry
Source Genre: Journal
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Publ. Info: New York, NY : John Wiley & Sons
Pages: - Volume / Issue: 13 (16) Sequence Number: - Start / End Page: 1685 - 1693 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/954925574961
ISSN: 0951-4198