Direct measurement of dissolved gases in microbiological systems using membrane inlet mass spectrometry |
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Authors: | David Lloyd Robert I. Scott |
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Affiliation: | Department of Microbiology, University College, Newport Road, Cardiff CF2 ITA, Wales UK |
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Abstract: | Membrane inlet mass spectrometry is a novel technique that has been used to measure concentrations of dissolved gases and volatile compounds of microbiological interest. This technique is compared with other methods of measuring dissolved gases. Applications to some microbiological processes (respiration, photosynthesis, fermentation, nitrogen fixation and methanogenesis) are discussed in greater detail. The advantages of the technique and possible future developments are presented; its major attraction is that a number of different gases can be simultaneously and continuously monitored directly and non-invasively in cell suspensions. |
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Keywords: | Mass spectrometry Membrane inlet Dissolved gas measurement Fermentation monitoring Oxygen Carbon dioxide Hydrogen Methane Nitrogen Hydrogen sulphide |
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