PROGRAMMABLE AUTOMATIC DEVICE FOR PLACING TRACE AND PRECISE QUANTITY OF LIQUID AT ACCURATE POSITION ON SUBSTRATE FOR ANALYSIS

摘要

The controller comprises a central turret 2 successively occupying the position p1, or a syringe 4 holds a hollow needle blank 5, the position p2 or this needle is truncated has a length that is precise, the position p3 or sucks in a few drops of liquid sample to be analyzed, the position p4 or this sample is deposit on a support, and the position p5 or the needle is extracted excisting. This automatic controller can be used in mass spectrometry thermal- for the control of radioactive elements.