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Gas chromatograph data processing device, and data processing method

A technology of data processing device and gas chromatograph, which is applied to measurement devices, instruments, scientific instruments, etc., can solve the problems of adjustment time error and inability to determine, and achieve the effect of improving the accuracy of determination

Inactive Publication Date: 2014-03-26
HORIBA STEC CO LTD
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Problems solved by technology

[0038] Therefore, when the RT calculation function is determined by the conventional method, the (1 / T A ,logt' A ) and (1 / T on the line L2 B ,logt' B ) the straight line L3 of these two points, and it is impossible to determine any one of L1 and L2 of the actual RT calculation function
That is, the RT calculation function determined by the conventional method can only calculate the combination of the temperature and the adjustment retention time on the straight line L3, so there is an error relative to the actual adjustment time

Method used

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  • Gas chromatograph data processing device, and data processing method
  • Gas chromatograph data processing device, and data processing method
  • Gas chromatograph data processing device, and data processing method

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no. 1 approach

[0071] The gas chromatograph data processing device 100 of the first embodiment is a device for specifying which registered substance Gn the unknown sample X is based only on the retention index of the unknown sample X obtained by gas chromatographic analysis. That is, if figure 1 As shown, the gas chromatograph data processing device 100 is combined with a gas chromatograph 101 to form an analysis system 200 .

[0072] The gas chromatograph 101 includes: a column 13, which is a tube coated with a stationary phase inside; a carrier gas introduction part 11, which is used to introduce a carrier gas used as a mobile phase into the column 13; a sample introduction part 12 , which is used to introduce unknown sample X and other qualitative samples into the column 13; column thermostat 14, which is used to keep the temperature of the column 13 constant or to raise the temperature at a certain speed Detecting unit 15, which detects the substance passing through at the outlet side ...

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Abstract

Provided in order to permit accurate calculation of an adjusted retention time of alkane at a arbitrary temperature and thus permit more improvement in accuracy in calculation of a retention index at the arbitrary temperature based on a known retention index is a column inlet pressure setting part 23 which receives at least a second sample temperature and outputs a second column inlet pressure such that a void time as a retention time of a non-retained substance as a substance not retained in a column at the second sample temperature becomes substantially equal to a void time at a first sample temperature.

Description

technical field [0001] The present invention relates to a data processing device for a gas chromatograph and a data processing method for converting values ​​actually measured by gas chromatographic analysis to convert the values ​​into values ​​suitable for comparison, etc. Background technique [0002] In gas chromatographic analysis, as a value measured for a sample to be characterized, adjustment of the retention time can be exemplified. The adjusted retention time is obtained by subtracting from the retention time, which is the time from injecting the sample to be qualified into the column to the detection of the sample in the detector, the component not retained in the column until it is detected in the detector. The value of the dead time value. [0003] Since the adjusted retention time is affected by the machine error of the gas chromatograph such as the length of the column, the control accuracy of the linear velocity of the carrier gas, or the experimental parame...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/86
CPCG01N30/32G01N30/8658G01N30/8693G01N30/02
Inventor 佐佐木智启
Owner HORIBA STEC CO LTD
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