โ Scribed by L. Schutte; E.B. Koenders
No coin nor oath required. For personal study only.
A system for the detection of radioactive effluents from a, gas chromatograph is described. The effluents are continuously dissolved in a stream of scintillator solution. After most of the carrier gas has been split off, the solution is led at a constant rate through a helical flow cell inserted in a liquid scintillation counter. The main advantages of the system are its expediency for all radioactive compounds, the absence of tailing or memory effects, good resolution and high sensitivity (less than 0,s nCi). Peak fractions can be collected after they have passed through the flow cell for accurate activity measurements. The method is also suitable for distinguishing between compounds labelled with two different radioactive isotopes.
๐ SIMILAR VOLUMES
A spcctrophotomctric channel was added to a regular flame ionization detector and used to determine several volatile organometallics. The minute flame proved capable of exciting a number of atomic species well enough for analytical ends. Both air-rich and hydrogen-rich flames were tested to establis