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Electrokinetic transport of PAH-degrading bacteria in model aquifers and soil.
bacteria in the subsurface with transport efficiencies heavily depending on the retention of the bacteria by the solid phase. Health Topics: Animal health Category: A1 FOS Classification: 4.03 Veterinary ...
Half-fraction and full factorial designs versus central composite design for retention modelling in reversed-phase ion-pair liquid chromatography
(LC) retention modelling of the cough-syrup compounds methyl para-hydroxybenzoate (MPHB) and propyl para-hydroxybenzoate (PPHB), phenylephrine hydrochloride (PE) and chlorphenamine maleate (CPM) was ...
Experimental design for the rapid selection of separation conditions for methyl and propyl parahydroxybenzoate, phenylephrine hydrochloride and chlorphenamine maleate by ion-pair liquid chromatography
liquid chromatographic (LC) systems. A face-centred central composite design was applied to study the impact of four LC mobile phase parameters and parameter interactions on the retention of these four ...
Experimental design on liquid chromatographic parameters in the analysis of tetracycline on poly(styrene-divinylbenzene)
retention of ETC, TC and EATC is measured. A mathematical regression model was derived which predicts retention times with good reliability. Both the retentions of ETC and EATC are strongly affected by ...
On-line high-performance liquid chromatographic diode array spectrophotometric analysis of steroidal hormones in illegal preparations
column, using methanol as modifier, was developed. For both types of compound an internal standard was chosen to establish reproducible relative retention times that could be used as one element of the ...
N-acetyl-(1-amino-2-naphthol-6-sulphonic acid), a common metabolite of sunset yellow FCF, orange GGN and 1-amino-2-naphthol-6-sulphonic acid in rat urine
common peak appeared on the chromatograms, which was absent from the blank urine extracts. After analysis of 24-h urine of rats that had received ANSA, a peak with the same retention time as this unknown ...