| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas chromatographic analytical device capable of measuring a column separation time surely and efficiently in measurement of methane/ non-methane or the like. SOLUTION: In this device, a chromatogram signal is read and memorized simultaneously with start of a column separation sequence, and the chromatogram signal is displayed on a screen 9 of a display device 6 as a chromatogram chart 10, and plural cursors 121-125 are formed movably along a time base 13 on the screen 9 and adjusted on an optional point on the displayed chromatogram chart 10, to thereby calculate the time of the point.
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