Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/77093
Type: Artigo de periódico
Title: TURBIDIMETRIC DETERMINATION OF POTASSIUM BY FLOW-INJECTION ANALYSIS
Author: TORRES, JRD
TUBINO, M
Abstract: A turbidimetric flow injection analytical method was developed for the determination of potassium (K) after precipitation with a 3% sodium tetraphenylboron solution at pH 9. The minimum detection limit is about 1.0 mu g K/mL. Calibration graphs of absorbance versus concentration are linear up to 20 mu g K/mL with a correlation coefficient of 0.9982. The average sampling rate is about 60 samples per hour. Relative standard deviations (s%) obtained with standard solutions of potassium are ca. 1%. Several samples of plant leaves, bottle mineral waters and serum rehydration solutions were analyzed.
Subject: POTASSIUM
TURBIDIMETRY
FLOW INJECTION
TETRAPHENYLBORON
Editor: Marcel Dekker Inc
Rights: fechado
Date Issue: 1994
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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