Use of selective ion exchange paper in x-ray spectrography and neutron activation. Application to the determination of gold.
Green-TE; Law-SL; Campbell-WJ
Anal Chem 1970 Dec; 42(14):1749-1753
Ion exchange resin-loaded paper disks containing a highly selective ion exchange resin serve as an excellent medium for separating and collecting trace quantities of elements in an optimum form for x-ray spectrographic and neutron activation determination. A new collection procedure provides a simple means for preconcentrating the trace elements from large samples. A radioactive tracer added to the original sample is used as the collection monitor. Use of a cyclotron-produced radiotracer permits the application of this procedure to neutron activation determination. The determination of gold in the ppm range by x-ray spectrography and in the ppb range by neutron activation are given as examples.
OP; Journal Article