Comparison of Multicomponent Determination of Iprodione, Procymidone and Chlorothalonil by Partial Least Squares Modelling Using Spectrophotometric and High-Performance Liquid Chromatography Data
作者:
J.L. Martínez Vidal,
M.D. Gil García,
M. Martínez Galera,
A. Garrido Frenich,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 13
页码: 2409-2432
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708001751
出版商: Taylor & Francis Group
关键词: High performance liquid chromatography;Diode array detector;Partial least squares;Pesticides: Iprodione;Procymidone and Chlorothalonil
数据来源: Taylor
摘要:
A Partial Least Squares (PLS) calibration method was applied to the simultaneous determination of iprodione, procymidone and chlorothalonil in mixtures, by uv-vis absorption spectrophotometry and by high performance liquid chromatography (HPLC). Signals and first-derivative (1D) signals were used to optimize the calibration matrices by the PLS-1 method. Quantitative results are presented for synthetic mixtures and for extracts from soil and groundwater samples. Significant improvements were achieved by using the PLS-1 method built with first-derivative chromatograms, in the determination of iprodione, procymidone and chlorothalonil in environmental samples.
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