作者: Lieuwe Bakker , Gijsel Wilfried Van
DOI:
关键词: Chemistry 、 Duct (flow) 、 Separate sample 、 Analytical chemistry
摘要: The invention relates to a method for controlling the composition of gas mixture present in space (2,3) by detecting concentration at least one component and extracting from subjecting treatment portion mixture, wherein is detected extracted space. also an apparatus performing this provided with means connected over supply duct (12,13) discharge (5,6) space, control signal generating means, which are (18). described enable measurements central location without necessity having install separate sample ducts.