title: Conductometric determination of carbon in uranium carbide and its solution in nitric acid.
abstract: A simple but accurate method has been developed for the determination of carbon in uranium carbide powders/pellets as well as in solutions of uranyl nitrates. The methodology involves quantitative conversion of carbon present in the sample to carbon dioxide that is subsequently absorbed in a dilute solution of barium hydroxide. The conductivity shift of the barium hydroxide solution is monitored on-line continuously using a laboratory-built PC-based conductivity measurement system that has been developed in-house based on the direct conversion of conductance to the digital pulse frequency. A new gas absorption cell has been designed to ensure quantitative absorption during the residence time of the gas in the cell. The method is sensitive, accurate and precise to 1-3% at 600-1000 mug of carbon in samples of uranium carbide.
authors.affiliation: Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603 102 Tamil Nadu, India.
authors.forename: M K
authors.initials: MK
authors.lastname: Ahmed
authors.forename: R
authors.initials: R
authors.lastname: Geetha
authors.forename: N K
authors.initials: NK
authors.lastname: Pandey
authors.forename: S
authors.initials: S
authors.lastname: Murugesan
authors.forename: S B
authors.initials: SB
authors.lastname: Koganti
authors.forename: B
authors.initials: B
authors.lastname: Saha
authors.forename: P
authors.initials: P
authors.lastname: Sahoo
authors.forename: M K
authors.initials: MK
authors.lastname: Sundararajan