A Precise Gas Chromatographic Method Using ECD Detection for the Measurement of Nitrous Oxide in Vehicle Exhaust
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Measurement of nitrous oxide concentrations from Wisconsin dairy barns
Abstract. Nitrous oxide (N2O) is one of the important greenhouse gases. N2O emissions from anthropogenic sources are approximately 7-8 million tones N/yr worldwide and 70% of these emissions are caused by crop and animal production. In this study, direct N2O production from dairy cattle (enteric fermentation) and feces/urine temporarily stored in two freestall dairy barns were measured with 1) ...
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Anaesthetic pollution is of interest to people subject to low concentrations of all types of gases and volatile anaesthetic during occupational activities. The decrease in recent years in the number of relevant publications does not necessarily mean that pollution has gone away or that the problem has been solved. A number of coincidental factors have brought the matter back into consideration....
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Measurement of pulmonary gas uptake and elimination is often performed, using nitrogen as marker gas to measure gas flow, by applying the Haldane transformation. Because of the inability to measure nitrogen with conventional equipment, measurement is difficult during inhalational anesthesia. A new method is described, which is compatible with any inspired gas mixture, in which fresh gas and exh...
متن کاملP110: Nitrous Oxide and Neuroinflammation
Nitrous oxide was an anaesthetic gas that was used for many years. There were many anaesthetic drugs in operations with many side effects. Nitrous oxide had some side effects too. But it was a safe gas in many times. In hospital personnel who worked in operating rooms exposure to this gas was important. The objective of this study was the introduction of nitrous oxide and neurologic side ...
متن کاملMethodological Comparison between a Novel Automatic Sampling System for Gas Chromatography versus Photoacoustic Spectroscopy for Measuring Greenhouse Gas Emissions under Field Conditions
Trace gases such as nitrous oxide (N2O), methane (CH4), and carbon dioxide (CO2) are climate-related gases, and their emissions from agricultural livestock barns are not negligible. Conventional measurement systems in the field (Fourier transform infrared spectroscopy (FTIR); photoacoustic system (PAS)) are not sufficiently sensitive to N2O. Laser-based measurement systems are highly accurate, ...
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