Demetrius G. Themelis

Stopped-flow injection liquid–liquid extraction spectrophotometric determination of palladium in airborne particulate matter and automobile catalysts

Aristidis N. Anthemidis, Demetrius G. Themelis, John A. Stratis · Talanta · 2001 · 84 citations

Solvent Extraction, Chemical Engineering, Air Sampling +12

Automated sample preparation based on the sequential injection principle

Georgios Theodoridis, Constantinos K. Zacharis, Paraskevas D. Tzanavaras et al. · Journal of Chromatography A · 2004 · 83 citations

Engineering, Sample Preparation, Sample Treatment +9

Development and validation of a high-throughput high-performance liquid chromatographic assay for the determination of caffeine in food samples using a monolithic column

Paraskevas D. Tzanavaras, Demetrius G. Themelis · Analytica Chimica Acta · 2006 · 67 citations

Food Chemistry, Gas Chromatography, Monolithic Column +9

Selective determination of cyanides by gas diffusion-stopped flow-sequential injection analysis and an on-line standard addition approach

Demetrius G. Themelis, Sophia Κarastogianni, Paraskevas D. Tzanavaras · Analytica Chimica Acta · 2008 · 59 citations

Chemical Engineering, Chemical Measurement, Engineering +10

Determination of methimazole and carbimazole by flow-injection with chemiluminescence detection based on the inhibition of the Cu(II)-catalysed luminol–hydrogen peroxide reaction

Anastasios Economou, Paraskevas D. Tzanavaras, Maria Notou et al. · Analytica Chimica Acta · 2003 · 53 citations

Medicinal Chemistry, Natural Sciences, Medicine +7