| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect a deficiency such as a device abnormality simultaneously with GC analysis of an analysis object sample; to specify a cause of the deficiency as much as possible; and to inform a user of the result. <P>SOLUTION: A reference retention index is determined from a result acquired by analyzing a prescribed substance and a retention index reference substance under a proper analysis condition using a normal column, and stored in a storage part 12. When a normal analysis is possible in this device, the prescribed substance is analyzed, and a reference retention time is determined, and the result is stored in the storage part 12. The prescribed substance and the retention index reference substance are added to the analysis object sample, and then subjected to GC analysis, to thereby determine a measured retention time and a measured retention index of the prescribed substance. A diagnosis processing part 11 compares each value respectively with the reference retention time and the reference retention index, and a deficiency cause such as a device abnormality, an erroneous selection of the analysis condition, an erroneous mounting of a column or deterioration of the column is estimated based on a combination of determination results of each deviation quantity, and the result is outputted on a display part 9. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
