| 摘要 |
PURPOSE:To process many samples simultaneously by linking plural chemical tanks with plural sample storage parts and to remove air from chemicals sent to the storage parts through a vacuum pump. CONSTITUTION:A selector valve 12 links the cylinder pump 11 with a chemical tank 8a with a signal from a controller 25 and closes other flow passages. Then, the pump 11 operates to suck a chemical 7a. The value 12 is changed over to link the pump 11 with a sample chamber 16 and then the chemical 7a is discharged from the pump 11 to the sample chamber 16. The chemical 7a is dispersed in the sample chamber 16 through a sample holder 15 and a straightening plate 21 to impregnate a sample 9 uniformly. Then, a vacuum pump 24 is put in operation to suck air and gas in the chemical 7a. At this time, the pump 11 is jogged to move the chemical 7a in the sample chamber 16 and then the air in the chemical 7a is removed completely to increase impregnation effect. The pump 11 is operated a desired impregnation time to suck the chemical 7a in the sample chamber 16 and then discharge it to the chemical tank 8a. A chemical 7b is processed similarly. Thus, many samples are processed simultaneously. |
