Determination of microgram quantities of tin(IV) by a combined ion-exchange/X-ray fluorescence technique.
A method is described for the analysis of microgram quantities of tin in dilute hydrofluoric acid. The tin is extracted onto anion-exchange resin loaded paper discs by a very simple technique and the papers are examined by X-ray fluorescence spectrography. The solutions are obtained by the dissolution of tin-containing glasses, and the normal glass-forming elements do not interfere. The method is intended for the determination of 1-20 mug of tin but may be used for up to at least 250 mug; 5 mug can be determined with a precision of +/- 10%.
Chamberlain
B R
BR
Pilkington Brothers Limited, Research and Development Laboratory, Lathom, Ormskirk, Lancashire, U.K.
Leech
R J
RJ