公开(公告)号：US3803404A

公开(公告)日：1974-04-09

申请号：US17186771

申请日：1971-08-16

Applicant: AGA AB

Inventor： ASARD P

IPC: G01T1/29 ,  H01J47/10 ,  H01J3/22

CPC classification number: G01T1/2935 ,  H01J47/10

Abstract: Radiochromatographic procedure for analysing of a substance having a gamma-radiating isotope added to it using a spark chamber with a cathode surface, a grid and an anode, a sample of said substance being laid on a chromatographic plate, placed on the cathode surface and used as electron emitting cathode, said electrons being composed of emitted beta-radiation from gamma decay and of Auger- and conversion electrons, the isotope atoms which are bound in the substance or possible free isotope atoms, which migrated from the substance, being detected by means of the spark chamber so as to establish the distribution and the concentration of the isotope atoms in the substance.