Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"XAD-4"”.
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Separación de aminoácidos y derivados utilizando resinas impregnadas de extractante
… se ha empleado como soporte polimérico Amberlita XAD-4 y como extractante cloruro de tri-alquilmetilamonio (Tomac) para la separación selectiva de los aminoácidos y ácido dinonilnaftalensulfónico (DNNSA) para la de betaína. Este estudio se basa en los principios que gobiernan la transferencia de …
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Toxicity mechanism of anthropogenic water contaminants: drinking water disinfection by-products (haloacetic acids) and particle associated contaminants from sealcoats (polyaromatic hydrocarbons) in lake sediments
… wastewater effluents extracted with XAD-8 and XAD-4 resins was evaluated. For chlorinated water, the organic extracts eluted from XAD-8 were more cytotoxic than that of the chloraminated wastewater extracts. However, the XAD-4 extracts of the chlorinated wastewaters and chloraminated …
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Développement de méthodes analytiques par chromatographie en phase gazeuse et chromatographie en phase liquide à haute performance pour le fenitrothion et sept de ses dérivés de l'eau et du sol à l'aide des résines XAD 2, 4 et 7
… de ses dérivés à l'aide des résines Amberlite(R) XAD a été étudié en utilisant la chromatographie en phase gazeuse (CPG) et la chromatographie en phase liquide à haute performance (CLHP) comme moyens d'analyse. Les synthèses du S-méthylfénitrothion, du formylfénitrothion, de l'aminofénitrothion, …
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Strategies for reducing the mutagen content of chlorinated aqueous media
… the non-polar, polymeric resin, Amberlite XAD-4, was successful. As these system conditions are comparable to those present in drinking water treatment facilities, application of this resin to such systems should be investigated. However, typical concentrations of the chlorinated mutagen …
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Dissolved Organic Matter Characterization and Impact on Mercury Binding in an Urbanizing Watershed
… collected and isolated using Amberlite DAX-8 and XAD-4 resins into operationally defined hydrophobic and hydrophilic acid fractions. Each fraction was characterized for chemical and spectral properties prior to an assessment of Hg-DOM fraction binding by measuring conditional stability constants …
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Συγκριτική μελέτη του χημικού περιεχομένου εκχυλισμάτων από εμπορικές και καλλιεργούμενες πρώτες ύλες των ειδών Salvia miltiorrhiza και Salvia triloba
… 75/25 του δείγματος SMR2 με μακρόπορη ρητίνη XAD-4 για την παραλαβή του φαινολικού κλάσματος, που κλασματώθηκε με την χρωματογραφική τεχνική του μοριακού αποκλεισμού (Sephadex LH-20), όπου και προέκυψαν επτά κλάσματα. Από την άλλη μεριά, το εκχύλισμα H2Ο/EtOH 50/50 του δείγματος STR2 …
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Enzyme-Linked Electrochemical Detection of Urinary Sarcosine
Biomarker-based diagnostics are crucial for the early detection of prostate cancer (PCa). One such biomarker that may be useful in PCa diagnostics is urinary sarcosine (N-methylglycine). However, its utility is confounded by several factors: the small differences in metabolite concentration that …