Automatic microdetermination of carbon, hydrogen, and nitrogen: Improved combustion train and handling techniques

Culmo, Robert

doi:10.1007/bf01216680

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1976

2000

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Cited by 27 publications

(2 citation statements)

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“…To determine total carbon in raw oil shale, it is necessary to conduct the pyrolysis at 1000 °C in pure oxygen. The milder conditions normally used to determine total carbon in organic materials (7) result in incomplete pyrolysis of the mineral carbonates. Material balances made on a Fischer assay show that little or no mineral carbonate decomposition occurs.…”

Section: Methodsmentioning

confidence: 99%

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Direct determination of organic carbon in oil shale

Heistand¹,

Humphries²

1976

Anal. Chem.

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Section: Methodsmentioning

confidence: 99%

“…Procedure. The procedure followed for the direct determination of organic carbon in oil shale is similar to the normal procedure (7) used to determine total C, H, and N. No solid oxidant or catalyst is used. The k-factors are determined using normal conditions while blank values are determined using the modified conditions.…”

Section: Methodsmentioning

confidence: 99%

Direct determination of organic carbon in oil shale

Heistand¹,

Humphries²

1976

Anal. Chem.

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The application of a novel heat flux calorimeter for studying growth of Escherichia coli W in aerobic batch culture

Marison

Stockar

1986

Biotech & Bioengineering

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The modification and principle of a novel heat flux calorimeter for the in siru, on-line measurement of the heat generated during microbial growth is described. Data concerning the physical characterization of the calorimeter as a fermentor, including stability and sensitivity of the heat signal, are presented. The calorimeter has been successfully applied to the study of the aerobic batch culture of Escherichia coli W on glucose under carbon and nitrogen limitation. A direct correlation between growth and heat evolution was obtained. Quantitative analysis of the data suggests that the new calorimetric technique could be used for monitoring growth and specific metabolic events, for convenient medium optimization, and as a basis for a novel fermentation process control system.

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