Determination of Micro Quantities of Boron in Steel by Solvent Extraction Method

Abstract

combustion-gas chromatographic technique.Carbon and hydrogen were determined on benzoic acid, anthracene, and acetanilide by the gas chromatographic(3) Kyryacos, G., Boord, C. E., "Gas Absorption Chromatography in the Analysis of Cool-Flame Combustion Products," Division of Analytical Chemistry, 131st Meeting, ACS, Miami,

Determination of Metals in Soils

“…In a further spectrophotometric method 38,39 for water-soluble boron in soil, boron is extracted from soil with boiling water. Borate in the extract is converted to fluoroborate by the action of orthophosphoric acid and sodium fluoride.…”

Spectrophotometric Determination of Gold(III) by Formation of Dicyanoaurate(I) and Its Solvent Extraction with Methylene Blue

“…However, on the basis of the following results: (1) the cyanocomplex must be monovalent anion because an ion-pair species with a MB : Au mole ratio of 1:1 is extracted (Fig. 5), (2) the formation rate of complex is so slow, particularly at lower pH values, and (3) a great excess of cyanide (5000 times in molar ratio) to gold is used in the Procedure, it was concluded that the reaction proceeded to form dicyanoaurate(I) and that only the ion-pair formed according to the following equation can be extracted into 1,2-dichloroethane: (2) under the conditions given in the Procedure.…”

Thermal and epithermal neutrons in the treatment of neoplasms. Technical progress report, May 1, 1972--April 30, 1973

“…The boron concentration in tumor follows sufficiently closely that of the blood, once the 2 curves intersect, that there is no advantage apparent to repeated administrations of this compound. 4. Boron administered at the low dosage is virtually completely lemoved from the blood and tumor in approximately 10 hours.…”