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Spectrophotometric determination of nitrite in simulated Purex Process solutions

Journal Article:

Abstract

A spectrophotometric method for nitrite determination in simulated Purex Process solutions is presented, utilizing the Griess reagent for the formation of the coloured azocompound with an absorption maximum at 525 nm. Molar absortivity was 36,262 and the sensitivity of the method 10/sup -6/M for nitrite. The calibration curve is linear in the range of 2 to 30..mu..g NO/sup -//sub 2//25 ml in cells of 1 cm optical path. The method can be used in the presence of uranium up to limits of an U/NO/sup -//sub 2/ ratio of 150. Test solutions were prepared to simulate composition and concentrations as obtained by irradiating standard fuel with a neutro flux of 3.2 x 10/sup 13/ n.s/sup -1/.cm/sup -2/, with a burn-up value of 33,000 Mwd/T and cooling time of two years. Nitrite determinations in these solutions were accurate within limits of 5%.
Publication Date:
Jan 01, 1984
Product Type:
Journal Article
Reference Number:
AIX-18-075706; EDB-87-140927
Resource Relation:
Journal Name: An. Assoc. Bras. Quim.; (Brazil); Journal Volume: 34-35:1-4
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; NITRITES; SPECTROPHOTOMETRY; PROCESS SOLUTIONS; QUANTITATIVE CHEMICAL ANALYSIS; PUREX PROCESS; AZO COMPOUNDS; CHEMICAL REACTIONS; NEUTRON FLUX; REAGENTS; CHEMICAL ANALYSIS; DISPERSIONS; MIXTURES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; RADIATION FLUX; REPROCESSING; SEPARATION PROCESSES; SOLUTIONS; 400101* - Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures; 050800 - Nuclear Fuels- Spent Fuels Reprocessing
OSTI ID:
6292750
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo, Brazil. Dept. de Engenharia Quimica
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Journal ID: CODEN: AABQA
Submitting Site:
INIS
Size:
Pages: 61-66
Announcement Date:
Aug 01, 1987

Journal Article:

Citation Formats

Araujo, I.daC. de, Matsuda, H T, Araujo, B.F. de, and Araujo, J.A. de. Spectrophotometric determination of nitrite in simulated Purex Process solutions. Brazil: N. p., 1984. Web.
Araujo, I.daC. de, Matsuda, H T, Araujo, B.F. de, & Araujo, J.A. de. Spectrophotometric determination of nitrite in simulated Purex Process solutions. Brazil.
Araujo, I.daC. de, Matsuda, H T, Araujo, B.F. de, and Araujo, J.A. de. 1984. "Spectrophotometric determination of nitrite in simulated Purex Process solutions." Brazil.
@misc{etde_6292750,
title = {Spectrophotometric determination of nitrite in simulated Purex Process solutions}
author = {Araujo, I.daC. de, Matsuda, H T, Araujo, B.F. de, and Araujo, J.A. de}
abstractNote = {A spectrophotometric method for nitrite determination in simulated Purex Process solutions is presented, utilizing the Griess reagent for the formation of the coloured azocompound with an absorption maximum at 525 nm. Molar absortivity was 36,262 and the sensitivity of the method 10/sup -6/M for nitrite. The calibration curve is linear in the range of 2 to 30..mu..g NO/sup -//sub 2//25 ml in cells of 1 cm optical path. The method can be used in the presence of uranium up to limits of an U/NO/sup -//sub 2/ ratio of 150. Test solutions were prepared to simulate composition and concentrations as obtained by irradiating standard fuel with a neutro flux of 3.2 x 10/sup 13/ n.s/sup -1/.cm/sup -2/, with a burn-up value of 33,000 Mwd/T and cooling time of two years. Nitrite determinations in these solutions were accurate within limits of 5%.}
journal = {An. Assoc. Bras. Quim.; (Brazil)}
volume = {34-35:1-4}
journal type = {AC}
place = {Brazil}
year = {1984}
month = {Jan}
}