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Title: Method of trivalent chromium concentration determination by atomic spectrometry

Abstract

A method is disclosed for determining the concentration of trivalent chromium Cr(III) in a sample. The addition of perchloric acid has been found to increase the atomic chromium spectrometric signal due to Cr(III), while leaving the signal due to hexavalent chromium Cr(VI) unchanged. This enables determination of the Cr(III) concentration without pre-concentration or pre-separation from chromium of other valences. The Cr(III) concentration may be measured using atomic absorption spectrometry, atomic emission spectrometry or atomic fluorescence spectrometry.

Inventors:
 [1];  [2]
  1. Tbilisi, 0183, GE
  2. Tbilisi, 0101, GE
Publication Date:
Research Org.:
MEMORANDUM OF UNDERSTANDING (MOU)
Sponsoring Org.:
USDOE
OSTI Identifier:
985344
Patent Number(s):
7,148,068
Application Number:
US patent applciation 10/403,296
Assignee:
Reheulishvili, Aleksandre N. (Tbilisi, 0183, GE); Tsibakhashvili, Neli Ya. (Tbilisi, 0101, GE) HQPR
DOE Contract Number:  
RUSSIAN FED. (MINATOM)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Reheulishvili, Aleksandre N, and Tsibakhashvili, Neli Ya. Method of trivalent chromium concentration determination by atomic spectrometry. United States: N. p., 2006. Web.
Reheulishvili, Aleksandre N, & Tsibakhashvili, Neli Ya. Method of trivalent chromium concentration determination by atomic spectrometry. United States.
Reheulishvili, Aleksandre N, and Tsibakhashvili, Neli Ya. Tue . "Method of trivalent chromium concentration determination by atomic spectrometry". United States. https://www.osti.gov/servlets/purl/985344.
@article{osti_985344,
title = {Method of trivalent chromium concentration determination by atomic spectrometry},
author = {Reheulishvili, Aleksandre N and Tsibakhashvili, Neli Ya},
abstractNote = {A method is disclosed for determining the concentration of trivalent chromium Cr(III) in a sample. The addition of perchloric acid has been found to increase the atomic chromium spectrometric signal due to Cr(III), while leaving the signal due to hexavalent chromium Cr(VI) unchanged. This enables determination of the Cr(III) concentration without pre-concentration or pre-separation from chromium of other valences. The Cr(III) concentration may be measured using atomic absorption spectrometry, atomic emission spectrometry or atomic fluorescence spectrometry.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 12 00:00:00 EST 2006},
month = {Tue Dec 12 00:00:00 EST 2006}
}

Patent:

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