期刊
ANALYTICA CHIMICA ACTA
卷 426, 期 1, 页码 135-146出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0003-2670(00)01166-1
关键词
apparent content curves method; Youden method; spectroscopy techniques
By combining the apparent content curves method and the Youden method, we have developed a strategy for detecting constant and proportional errors in spectroscopy techniques. A method for elimination of spectral interferences (different of blank) is also proposed. To apply of this method there must be a matrix effect that varies with the amount of sample or a simulated matrix effect provided working under different experimental conditions that induce a variation of the analytical signal of the analyte. The proposed procedures have been applied to the determination of methyl orange in presence of phenol red, bromothymol blue and bromocresol purple. (C) 2001 Elsevier Science B.V. All rights reserved.
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