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Determination of lead in human saliva by combined cloud point extraction-capillary zone electrophoresis with indirect UV detection.
Flow injection spectrophotometric analysis of lead in human saliva for monitoring environmental pollution.
Spectrophotometric determination of trace aluminium content in parenteral solutions by combined cloud point preconcentration-flow injection analysis.
The developed coupled methodology, which thoroughly satisfies the typical requirements for pharmaceutical control processes, is appropriate for monitoring the aluminium concentration in parenteral nutrition.
Monitoring the elimination of gadolinium-based pharmaceuticals. Cloud point preconcentration and spectrophotometric determination of Gd(III)-2-(3,5-dichloro-2-pyridylazo)-5-dimethylaminophenol in…
The optimised procedure was applied to determine total and free Gd(III) contents in real urine samples of patients after the NMR imaging diagnostic examination with contrast agent.
Spectrophotometric determination of microgram amounts of calcium in waters and foods using diphenylglyoxal bis(2-hydroxybenzoyl hydrazone).
A sesnitive and selective spectrophotomeric method is proposed for the determination of clcium using diphenylglyoxal bis(2-hydroxybenzoyl hydrazone) and when masking agents are added common cations do not interfere.
Liquid - liquid extraction combined with atomic-absorption spectrometry for determination of copper in water, foods and analytical reagents using 1,2-naphthoquinone thiosemicarbazone.
An atomic-absorption spectrometric method for the determination of trace amounts of copper in solution with 1,2-naphthoquinone thiosemicarbazone is described and has been applied successfully to the analysis of waters, foods and analytical reagents.
Diphenylglyoxal and dipyridylglyoxal bis(benzoylhydrazone) as analytical reagents.
1,2- And 1,3-cyclohexanedione bis(2-hydroxybenzoylhydrazone)s as analytical reagents.
Selective determination of copper with pyridoin phenylhydrazone as chromogenic extraction reagent
SummaryThe synthesis, characteristics and analytical applications of pyridoin phenylhydrazone are described. It reacts with copper(I) to produce an orange 1∶1 complex (λmax=450 nm,ε=2.1×104l·…
A theoretical study on the structure of 2-(2-pyridylazo)phenol