Kati Helmja
Overview
Explore the profile of Kati Helmja including associated specialties, affiliations and a list of published articles.
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Articles
7
Citations
22
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Recent Articles
1.
Helmja K, Vaher M, Kaljurand M
Electrophoresis
. 2011 Apr;
32(9):1094-100.
PMID: 21462223
In the current work, phenolic acids were analysed and their radical scavenging activity evaluated by CE, including the quantification of overlapping peaks by applying the multivariate curve resolution (MCR) method....
2.
Helmja K, Vaher M, Pussa T, Orav A, Viitak A, Levandi T, et al.
Nat Prod Res
. 2011 Mar;
25(5):496-510.
PMID: 21391113
A comprehensive investigation of the chemical composition of the aerial parts of Hypericum perforatum L. collected in three habitations in Estonia was carried out. An analysis by gas chromatography-mass spectrometry...
3.
Schmitz A, Thormann W, Moessner L, Theurillat R, Helmja K, Mevissen M
Electrophoresis
. 2010 Apr;
31(9):1506-16.
PMID: 20358543
Ketamine, an injectable anesthetic and analgesic consisting of a racemic mixture of S-and R-ketamine, is routinely used in veterinary and human medicine. Nevertheless, metabolism and pharmacokinetics of ketamine have not...
4.
Helmja K, Vaher M, Pussa T, Kaljurand M
J Chromatogr A
. 2009 Feb;
1216(12):2417-23.
PMID: 19185871
The oxidation process of phenolic compounds of an artificial mixture consisting of six polyphenols and the extract of eggplant (Solanum melongena) skin was monitored by using capillary zone electrophoresis and...
5.
Helmja K, Borissova M, Knjazeva T, Jaanus M, Muinasmaa U, Kaljurand M, et al.
J Chromatogr A
. 2009 Jan;
1216(17):3666-73.
PMID: 19147148
A procedure for collecting fractions during capillary electrophoresis for their analysis using various stand-alone instruments is described. The results of a systematic study of the optimization and application of capillary...
6.
Helmja K, Vaher M, Pussa T, Raudsepp P, Kaljurand M
Electrophoresis
. 2008 Oct;
29(19):3980-8.
PMID: 18958890
In the current study, phenolic compounds of the tomato (Solanum lycopersicum) skin extract were separated and their composition was determined by capillary electrophoresis and tandem high-performance liquid chromatography diode array...
7.
Helmja K, Vaher M, Pussa T, Kamsol K, Orav A, Kaljurand M
J Chromatogr A
. 2007 Feb;
1155(2):222-9.
PMID: 17316654
In the present study, the composition of the hop strobilus extract by using different extraction methods under different solvent conditions was analysed and compared. Several separation methods were applied to...