A simple and robust flow-injection analysis method for determination of free acid and metal concentrations in hydrolyzable metal solutions

A single-line flow injection analysis (FIA) system for simultaneous determination of hydrolyzable metals and free acid has been developed. As a model for hydrolyzable metals iron was chosen. The setup allows determination of 0.5-6 M acid and 0.1-1.6 M iron. The resulting prediction error is 7% for a...

Full description

Saved in:
Bibliographic Details
Published in:Analytical chemistry (Washington) 1990-04, Vol.62 (8), p.849-852
Main Authors: Lindberg, Walter, Clark, Gregory D, Hanna, Christopher P, Whitman, David A, Christian, Gary D, Ruzicka, Jaromir
Format: Article
Language:English
Subjects:
050400 - Nuclear Fuels- Feed Processing
400100 - Analytical & Separations Chemistry
Analytical chemistry
CHEMICAL ANALYSIS
Chemistry
ELEMENTS
ENERGY SOURCES
Exact sciences and technology
FUELS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NUCLEAR FUEL CYCLE AND FUEL MATERIALS
NUCLEAR FUELS
PH VALUE
REACTOR MATERIALS
REPROCESSING
SEPARATION PROCESSES
Spectrometric and optical methods
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A single-line flow injection analysis (FIA) system for simultaneous determination of hydrolyzable metals and free acid has been developed. As a model for hydrolyzable metals iron was chosen. The setup allows determination of 0.5-6 M acid and 0.1-1.6 M iron. The resulting prediction error is 7% for acid and 3.8% for iron. Data were obtained by using a diode array detector. The calibration models were developed by using partial least-squares (PLS) regression. These results were compared with results obtained by traditional univariate calibration. The project aimed at developing a simple and robust FIA system to be applicable in an industrial process setting. Necessary modifications of present FIA instrumentation to fit such an environment are discussed.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac00207a016