Foundations of modern liquid chromatography

Abstract

I t is not important for the scientist whether his own theory proves t h e right one in the end. Our experiments are not carried out to decide whether we are right, but to gain new knowledge. I t is for knowledge sake t h a t we plow and sow. I t is not inglorious a t all to have erred in theories and hypotheses. Our hypotheses are intended for t h e present rather t h a n for t h e future. T h e y are indispensable for us i n t h e explanation of the secured facts, to enliven and to mobilize t h e m and above all, to blaze a trail into unknown regions towards new discoveries. Everyone has the same touch with Mettler's exclusive air release.With the exclusive air release feature on your Mettler balance, it doesn't make any difference how hard or softly the release lever is operated. The beam release is completely automatic and independent of lever pressure.This feature gives you improved reproducibility and accuracy. Currently, it's available on six models, including the new H78AR analytical balance.Air release is only one of the advanced features of Mettler balances. Automatic arrestment, preweigh, filling guide and rapid full tare are some others. Whatever vour readabilitv and caDacitv reauirements, vou can select a CIRCLE 165 O N READER SERVICE CARD ANALYTICAL CHEMISTRY. VOL. 47, NO. 4. APRIL 1975 4 2 5 A

Inorganic and geological materials

“…However, the techniques are still useful for special available methods in chromatography. The chromatography of inorganic ions has recently been reviewed by Blasius and Augustin (32), and Senyavin (269); a historical review of modern liquid chromatography, by Ettre and Horvath (80), was most interesting. Recent examples of applications in inorganic analysis were the separation of platinum and palladium on silicone rubber foam treated with dimethylglyoxime (113); the use of stannic antimonate papers in dimethylsulfoxide-nitric acid for the separation of 49 metal ions (246); the use of hydrophilic glycol methacrylate gels combined With oxine for trace inorganic analysis (275).…”