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:
-
- Tbilisi, 0183, GE
- Tbilisi, 0101, GE
- Issue Date:
- Research Org.:
- MEMORANDUM OF UNDERSTANDING (MOU)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 985344
- Patent Number(s):
- 7148068
- Application Number:
- US patent applciation 10/403,296
- Assignee:
- Reheulishvili, Aleksandre N. (Tbilisi, 0183, GE); Tsibakhashvili, Neli Ya. (Tbilisi, 0101, GE)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- 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 = {2006},
month = {12}
}
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