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CHEMOMETRIC CLASSIFICATION OF ADVANCED OXIDATION PROCESSES FOR THE DEGRADATION OF PHARMACEUTICALS AND PERSONAL CARE PRODUCTS
Autori:
Data aparitiei: March 2013
Revista: Environmental Engineering and Management JournalVol. 12Nr. 3
ISSN: 1843 - 3707
Pret: 25.00 RON    
N.A.
Abstract
The present study was focused to classify various advanced oxidation processes (AOPs) to degrade sixteen common
pharmaceuticals and personal care products (PPCPs). The classification was based on the degradation rate constant (h-1).
Chemometric techniques like principal component analysis (PCA) and cluster analysis (CA) were used to classify AOPs which
can efficiently degrade a certain class of PPCPs. The bipolt based on first two principal components (PCs) of PCA model
identified two distinct groups of PPCPs. The first group was comprised of the PPCPs which were effectively degraded by UV
based AOPs methods whereas second group was composed of those PPCPs which were degraded by ozone based AOPs more
efficiently. Tendency in two groups of PPCPs was also disclosed in correlation coefficient matrix of PPCPs on the basis of
chemical structure. The same groups of PPCPs were identified in a dendrogram from CA. Within second group of PPCPs, a
subgroup was pointed out by CA that was effectively removed by combination of ozone and UV methods; O3/UV and
O3/UV/TiO2. The score plot and the dendrogram also highlighted the tentative identification of employed AOPs. Both the
chemometric techniques could classify all the investigated PPCPs properly.




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