User profiles for Nikolaos Grekas
Nikolaos GrekasELPEN Pharmaceutical Co Inc Verified email at elpen.gr Cited by 273 |
Determination of thiamine by continuous flow chemiluminescence measurement
N Grekas, AC Calokerinos - Talanta, 1990 - Elsevier
The chemiluminescence produced by oxidation of thiamine by ferricyanide in alkaline
medium has been investigated by using a simple continuous flow analyser and a procedure …
medium has been investigated by using a simple continuous flow analyser and a procedure …
Pharmacokinetic study for the establishment of bioequivalence of two inhalation treatments containing budesonide plus formoterol
N Grekas, K Athanassiou… - Journal of Pharmacy …, 2014 - academic.oup.com
Objectives The aim of this study was to compare lung deposition and assess the bioequivalence
of two formulations containing budesonide and formoterol and being delivered via …
of two formulations containing budesonide and formoterol and being delivered via …
Continuous flow molecular emission cavity analysis of sulphite and sulphur dioxide
N Grekas, AC Calokerinos - Analyst, 1985 - pubs.rsc.org
A continuous flow method for the determination of sulphite (1–50 µg ml–1) by molecular
emission cavity analysis is described. The sample is mixed with an excess of orthophosphoric …
emission cavity analysis is described. The sample is mixed with an excess of orthophosphoric …
[HTML][HTML] Organic impurities in chemical drug substances
N Grekas - Pharmaceutical Technology Europe, 2005 - pharmtech.com
Chemical purity is the most important quality characteristic of a pharmaceutical substance.
This article describes the latest scientific and technological advances to meet recent …
This article describes the latest scientific and technological advances to meet recent …
Effect of sulphite on the determination of sulphide by continuous-flow molecular emission cavity analysis Determination of both anions in admixture
N Grekas, AC Calokerinos - Analytica chimica acta, 1989 - Elsevier
The effect of sulphite on the determination of sulphide after acidification and molecular emission
cavity analysis is investigated. This severe spectral interference can easily be overcome …
cavity analysis is investigated. This severe spectral interference can easily be overcome …
Determination of thiamine using continuous flow molecular emission cavity analysis
N Grekas, AC Calokerinos, TP Hadjiioannou - Analyst, 1989 - pubs.rsc.org
A continuous flow method for the determination of thiamine hydrochloride (20.0–240.0 µg ml–1,
5.9 × 10–5–7.1 × 10–4M) is described. The sample was mixed with an excess of sodium …
5.9 × 10–5–7.1 × 10–4M) is described. The sample was mixed with an excess of sodium …
Continuous flow molecular emission cavity analysis of cephalosporins by alkaline degradation to sulphide
N Grekas, AC Calokerinos - Analyst, 1990 - pubs.rsc.org
A continuous flow method for the determination of some cephalosporins (cephradine,
cephalexin, cephalosporin C, cefadroxil, cephapirin and cephalothin) in the general range 10.0–…
cephalexin, cephalosporin C, cefadroxil, cephapirin and cephalothin) in the general range 10.0–…
[HTML][HTML] Specifications of chemical substances for pharmaceutical use
N Grekas - Pharmaceutical Technology Europe, 2004 - pharmtech.com
A substance is any matter that may be of human, animal, vegetable (plant) or chemical origin.
Substances intended for pharmaceutical purposes are used as active ingredients (drug …
Substances intended for pharmaceutical purposes are used as active ingredients (drug …
[PDF][PDF] Chemiluminescence arising from the oxidation of bilirubin in aqueous media
LP Palilis, AC Calokerinos, N Grekas - Biomedical Chromatography, 1997 - academia.edu
Bilirubin (BIL) is a compound of great biological interest since it is found in human plasma as
metabolic product of haemoglobin and haeme proteins. Analytical methods currently used …
metabolic product of haemoglobin and haeme proteins. Analytical methods currently used …
Reliability of the FSI-10 questionnaire for the assessment of the usability of inhalers in Greek patients
N Grekas, K Athanassiou, K Papataxiarchou, O Porichi… - 2011 - Eur Respiratory Soc
Introduction: The Feeling of Satisfaction with Inhaler (FSI-10) is a self-completed questionnaire
designed to assess the patient opinions regarding the satisfaction and usability of the …
designed to assess the patient opinions regarding the satisfaction and usability of the …