| abstract |
[Object] To detect dimethyl ether in LP gas in a short time with high selectivity. A column 25 using a polymer filler suitable for separation of carbonyl compounds and glycols, a photoionization detector using high energy vacuum ultraviolet light as an irradiation source, and a gas cylinder for supplying a standard gas. 30, and dimethyl ether is detected by the photoionization detector 25 from the components separated by the column. [Selection] Figure 2 |