Suggestions are made for ring to ring separations and for the purification of filter papers for ring oven procedures.
The authors have developed a rapid and accurate titrimetric method for the determination of 5–15 mg of aluminium with Complexone-III in the presence of iron, copper, titanium, manganese, calcium, magnesium and phosphate.
The authors have developed an exact micro-gravimetric method for the determination of cadmium with 2-(o-hydroxyphenyl)-benzoxazole.
The authors have developed a rapid and accurate volumetric method for the determination of small quantities of calcium and magnesium with EDTA in the presence of phosphate.
The authors have elaborated an exact micro-volumetric method for the determination of mercury with thionalide.
The authors have elaborated an exact micro-gravimetric method for the determination of lead with thionalide.
The authors have developed an exact micro-method for the determination of lead by anodic electrodeposition as lead dioxide. The method has been successfully applied to the determination of lead in tin-base and lead-base alloys.
The authors have elaborated an exact micro-gravimetric method for the determination of thallium with thionalide.
The authors have elaborated an exact micro-gravimetric method for the determination of lead with mercaptobenzothiazole.
The authors have elaborated an exact micro-volumetric method for the determination of lead with thionalide. The method has been successfully applied to the determination of lead in tin-base and lead-base alloys, following the isolation of lead as lead sulphate and its redissolution in ammonium acetate.
The authors have elaborated a rapid and exact microvolumctric method fur the determination of tin in metallic tin and in tin-base and lead-base alloys.
The authors performed a critical study of the macro-volumetric method for the determination of anthranilic acid by di- and tri-brommation. Preference was given to the tribromination method, as it was found to be more precise.
Es werden praktische und wirksche und wirksame Tauhfilter und Bikarbonatventile beschrieben, die beide leicht hergestellt werden können.
L'auteur transforme la macrométhode deH. Funk et deM. Ditt pour déterminer le cobalt avec l'acide anthranilique en microméthode gravimétrique. Cette méthode trés exacte, est décrite en détail.
Une micro-méthode gravimétrique pour le dosage du zinc avec l'o-oxyquinoléine.