Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1131, Issue 1-2, Pages 85-96Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2006.07.047
Keywords
multivariate curve resolution; alternating least squares; MCR-ALS; HPLC-DAD/MS; data fusion; coelution; wavelet transform; environmental samples
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Multivariate curve resolution-alternating least squares (MCR-ALS) is applied to solve coelution problems in liquid chromatograpy with diode array detection (DAD) and mass spectrometry (MS). Fusion of DAD and MS detector signals improved results versus those obtained using only one of the two detector signals. Application of wavelet transform to MS data before its fusion with DAD data, further help to facilitate the resolution and quantitation of the coeluted compounds under study, besides a decrease of time of analysis. Mixtures of biocide compounds in standard mixtures and in environmental samples (sediment and wastewater samples) were analyzed with estimated quantitation errors below 12%. (c) 2006 Elsevier B.V. All rights reserved.
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