RADIOASSAY BY GAS CHROMATOGRAPHY-FLOW COUNTER UNIT AT ELEVATED TEMPERATURE

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Proc. Japan Conf. Radioisotopes

OSTI ID:4682582

Tanaka, Y; Wolf, A P

A new, technique for the simultaneous separation by gas chromatography and immediate assay of radioactivity of the separated vaporized components of radioactive labeled liquid state organic compounds is proposed. Helium, which carries the material to be separated through the column of gas chromatograph and thermal conductivity cell, is converted into a counting gas by the continuous injection of methane. The mixed hot stream of helium and methane then passes through an internal gas proportional flow counter of special design, which detects the radioactivity of the vaporized material carried. This new method should find a wide field of application for investigation of liquid state radioactive labeled organic compounds. The most important factors that aifect the accuracy and efficiency of this counting method at elevated temperature are discussed. (A.G.W.)

• Research Organization: Inst. of Physical and Chemical Research
• NSA Number: NSA-17-030094
• OSTI ID: 4682582
• Journal Information: Proc. Japan Conf. Radioisotopes, Journal Name: Proc. Japan Conf. Radioisotopes Vol. Vol: 5th, No. 3
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

CHROMATOGRAPHY
COUNTERS
EFFICIENCY
EXTRACTION COLUMNS
GASES
GENERAL AND MISCELLANEOUS
HELIUM
INJECTION
LABELLED COMPOUNDS
LIQUIDS
METHANE
ORGANIC COMPOUNDS
PLANNING
PROPORTIONAL COUNTERS
RADIOACTIVITY
SEPARATION PROCESSES
TEMPERATURE
THERMAL CONDUCTIVITY
USES