Searching - TalTech Research Portal

display

sort

1

journal article

Analysis of the stable free radical scavenging capability of artificial polyphenol mixtures and plant extracts by capillary electrophoresis and liquid chromatography-diode array detection-tandem mass spectrometryHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelJournal of chromatography A2009 / p. 2417-2423 : ill

journal article

2

journal article

Bioactive components of the hop strobilus : comparison of different extraction methods by capillary electrophoretic and chromatographic methodsHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kamsol, Kristjan; Orav, Anne; Kaljurand, MihkelJournal of chromatography A2007 / p. 222-229 : ill https://www.academia.edu/60646251/Bioactive_components_of_the_hop_strobilus_Comparison_of_different_extraction_methods_by_capillary_electrophoretic_and_chromatographic_methods

journal article

3

book article

Bioaktiivsete ühendite lahutamine ja antioksüdatiivsuse hindamine maavitsaliste perekonda Solanaceae kuuluvatel taimedelHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelXXX Eesti keemiapäevad : teaduskonverentsi teesid = 30th Estonian Chemistry Days : abstracts of scientific conference2007 / lk. 36-37

book article

4

journal article

Capillary electrophoretic monitoring of hydrothermal pre-treatment and enzymatic hydrolysis of willow : comparison with HPLC and NMRVaher, Merike; Helmja, Kati; Käsper, Andres; Kurašin, Mihhail; Väljamäe, Priit; Kudrjašova, Marina; Koel, Mihkel; Kaljurand, MihkelCatalysis today2012 / p. 34-41 : ill

journal article

5

book article

Capillary electrophoretic monitoring of products of enzymatic digestion of willow sawdustHelmja, Kati; Käsper, Andres; Kudrjašova, Marina; Vaher, MerikeSustainChem2011 : International Conference on Materials and Technologies for Green Chemistry jointly with Workshop of COST Action CM0903 (UBIOCHEM-II) : September 5-9, 2011, Tallinn, Estonia : abstract book and program2011 / p. 105 https://www.etis.ee/Portal/Publications/Display/b8a916a7-4a4b-460f-a3de-eede27394252

book article

6

journal article

Characterization of bioactive compounds contained in vegetables of the Solnaceae family by capillary electrophoresisHelmja, Kati; Vaher, Merike; Gorbatšova, Jelena; Kaljurand, MihkelProceedings of the Estonian Academy of Sciences. Chemistry2007 / 4, p. 172-186 : ill

journal article

7

journal article

Chemical composition of red wines made from hybrid grape and common grape (Vitis vinifera L.) cultivarsPedastsaar, Priit; Vaher, Merike; Helmja, Kati; Kulp, Maria; Kaljurand, Mihkel; Karp, Kadri; Raal, Ain; Karathanos, Vaios; Püssa, TõnuProceedings of the Estonian Academy of Sciences2014 / p. 444-453 : ill https://artiklid.elnet.ee/record=b2707387*est

journal article

8

book article

Comparative study of antioxidant capacity of Rheum rhaponticum root polyphenolsRaudsepp, Piret; Helmja, Kati; Raal, Ain; Vaher, Merike; Püssa, TõnuXXIVth International Conference on Polyphenols : Polyphenols Communications 2008 : Salamanca, 8th-11th July 2008. Volume 12008 / p. 231-232 : ill https://www.researchgate.net/publication/286933217_Comparative_study_of_antioxidant_capacity_of_Rheum_rhaponticum_root_polyphenols

book article

9

book article

Comparison of the composition of phenolic acids and antioxidativity of different wheat varietiesMatso, Kersti; Levandi, Tuuli; Helmja, Kati; Vaher, MerikeNoSSS2009 : 5th Conference on Separation and Related Techniques by Nordic Separation Science Society : 26-29 August, 2009, Tallinn University of Technology, Estonia : abstract book and program2009 / p. 116

book article

10

book article

Complex study of bioactive compounds in egglant (Solanum melongena)Helmja, Kati; Gorbatšova, Jelena; Vaher, Merike; Püssa, Tõnu; Kaljurand, Mihkel4th Nordic Separation Science Society (NoSSS) International Conference : Kaunas, August 26-29, 2007 : abstracts book2007 / p. 77

book article

11

book article

Comprehensive investigation of St.John's Worth (Hypernicum perforatum) : polyphenolic compounds, essential oils and metalsHelmja, Kati; Vaher, Merike; Orav, Anne; Viitak, Anu; Püssa, Tõnu; Kaljurand, Mihkel14th International Symposium on Separation Science : Primosten, Croatia, 30 Sept. - 3 Oct. 20082008 / p. 59

book article

12

book article

Determination of carbohydrates in cellulose and enzymatically pretreated wood fractions using capillary electrophoresisVaher, Merike; Helmja, Kati; Käsper, Andres; Kudrjašova, Marina; Gorbatšova, Jelena; Kaljurand, MihkelProgram and abstract book : Nordic Separation Science Society 6th Conference : Riga, Latvia, August 24th-27th, 20112011 / p. 98

book article

13

dissertation

Determination of phenolic compounds and their antioxidative capability in plant extracts = Meetodid fenoolsete ühendite määramiseks ja nende antioksüdatiivsuse hindamiseksHelmja, Kati2010 https://www.ester.ee/record=b2561129*est

dissertation

14

journal article

Enantioselective CE analysis of hepatic ketamine metabolism in different species in vitroSchmitz, Andrea; Thormann, Wolfgang; Moessner, Lone; Theurillat, Regula; Helmja, Kati; Mevissen, MeikeElectrophoresis2010 / 9, p. 1506-1516 : ill https://pubmed.ncbi.nlm.nih.gov/20358543/

journal article

15

journal article

Evaluation of antioxidative capability of the tomato (Solanum lycopersicum) skin constituents by capillary electrophoresis and high-performanced liquid chromatographyHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Raudsepp, Piret; Kaljurand, MihkelElectrophoresis2008 / p. 3980-3988 : ill https://pubmed.ncbi.nlm.nih.gov/18958890/

journal article

16

journal article

Evaluation of the free radical scavenging capability of wheat extracts by capillary electrophoresis and multivariate curve resolutionHelmja, Kati; Vaher, Merike; Kaljurand, MihkelElectrophoresis2011 / 9, p. 1094-1100 : ill

journal article

17

book article

Fenoolsete ühendite sisaldus ja antioksüdatiivsus erinevates nisusortides ja nisutera fraktsioonidesMatso, Kersti; Vaher, Merike; Helmja, Kati; Levandi, Tuuli; Kaljurand, MihkelXXXI Eesti keemiapäevad : [28. aprill 2010, Tallinn] : teaduskonverentsi teesid = 31st Estonian Chemistry Days : abstracts of scientific conference2010 / lk. 56

book article

18

journal article

Fermentation reactor coupled with capillary electrophoresis for on-line bioprocess monitoringTahkoniemi, Heli Anneli; Helmja, Kati; Menert, Anne; Kaljurand, MihkelJournal of pharmaceutical and biomedical analysis2006 / 5, p. 1585-1591 : ill

journal article

19

journal article

Fraction collection in capillary electrophoresis for various stand-alone mass spectrometersHelmja, Kati; Borissova, Maria; Knjazeva, Tatjana; Jaanus, Martin; Muinasmaa, Urmas; Kaljurand, Mihkel; Vaher, MerikeJournal of chromatography A2009 / p. 3666-3673 : ill

journal article

20

book article

Identification of bioactive compounds in leaves and stems of Aegopodium podagraria by various analytical technicsOrav, Anne; Viitak, Anu; Helmja, Kati; Vaher, MerikeNoSSS2009 : 5th Conference on Separation and Related Techniques by Nordic Separation Science Society : 26-29 August, 2009, Tallinn University of Technology, Estonia : abstract book and program2009 / p. 144

book article

21

book article

Methods of comparative analysis of the free radical scavenging capability of components of antioxidant mixturesPüssa, Tõnu; Vaher, Merike; Helmja, Kati; Raudsepp, Piret; Kaljurand, MihkelNoSSS2009 : 5th Conference on Separation and Related Techniques by Nordic Separation Science Society : 26-29 August, 2009, Tallinn University of Technology, Estonia : abstract book and program2009 / p. 56

book article

22

journal article

Phenolic compounds and the antioxidant activity of the bran, flour and whole grain of different wheat varietiesVaher, Merike; Matso, Kersti; Levandi, Tuuli; Helmja, Kati; Kaljurand, MihkelProcedia chemistry2010 / p. 76-82 : ill https://www.sciencedirect.com/science/article/pii/S1876619609004094

journal article

23

book article

Polüfenoolsete ühendite antioksüdatiivsuse hindamine kapillaarelektroforeetiliselt ja vedelik-kromatograafiliseltHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelXXXI Eesti keemiapäevad : [28. aprill 2010, Tallinn] : teaduskonverentsi teesid = 31st Estonian Chemistry Days : abstracts of scientific conference2010 / lk. 31

book article

24

book article

Portatiivne kapillaarelektroforeesi aparaat keskkonnareostuse analüüsiksKnjazeva, Tatjana; Makarõtševa, Natalja; Kobrin, Eeva-Gerda; Helmja, Kati; Seiman, Andrus; Vaher, Merike; Kaljurand, MihkelXXXI Eesti keemiapäevad : [28. aprill 2010, Tallinn] : teaduskonverentsi teesid = 31st Estonian Chemistry Days : abstracts of scientific conference2010 / lk. 46

book article

25

book article

Study of VFAs formation during anaerobic digestion of thermally treated sludge by respirometric Oxitop methodMenert, Anne; Michelis, Merje; Helmja, Kati; Tahkoniemi, Heli Anneli; Vaalu, Tarmo; Malsub, Tõnu; Vilu, Raivo; Kaljurand, MihkelProceedings of 5th Conference on the Establishment of Cooperation between Companies and Institutions in the Baltic Sea Region2005 / p. 563

book article

Helmja, Kati (TTÜ author)

types of item

author 30

CV 10

name of the person 7