초록 ▼

A method for automatically detecting waste gas. The waste gas is led into a multiple switching valve through which the waste gas is sampled. Then, the waste gas sample is conveyed to an empty column and/or a chromatographic column, via the multiple switching valve. Then, the total hydrocarbon conten

A method for automatically detecting waste gas. The waste gas is led into a multiple switching valve through which the waste gas is sampled. Then, the waste gas sample is conveyed to an empty column and/or a chromatographic column, via the multiple switching valve. Then, the total hydrocarbon content of the waste gas sample is measured when the waste gas sample is conveyed to the empty column, and the waste gas sample is separated for measuring individual volatile organic compound concentrations of the waste gas sample when the waste as sample is conveyed to the chromatographic column.

대표청구항 ▼

[ What is claimed is:] [1.] A method for automatically detecting waste gas, comprising the steps of:(a) introducing a waste gas into a multiple switching valve, the waste gas comprised of individual volatile organic compounds (VOCs) and having a total hydrocarbon content (THC);(b) conveying the wast

[ What is claimed is:] [1.] A method for automatically detecting waste gas, comprising the steps of:(a) introducing a waste gas into a multiple switching valve, the waste gas comprised of individual volatile organic compounds (VOCs) and having a total hydrocarbon content (THC);(b) conveying the waste gas to an empty gas chromatographic (DC) column or a gas chromatographic column or both of the DC columns, via the multiple switching valve;(c) separating the individual VOCs of the waste gas in the chromatographic column; and(d) measuring the THC of the waste gas conveyed to the empty column and the VOC concentrations of the waste gas separated in the chromatographic column at a common detector.