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1

Design and fabrication of integrated solid-phase extraction-zone electrophoresis microchip

Santeri Tuomikoski, Nina Virkkala, Stella Rovio, Ari Hokkanen, Heli Sirén, Sami Franssila

Journal:

Journal of Chromatography A

Year:

2006

Language:

english

File:

PDF, 520 KB

english, 2006

2

Determination of monosaccharide composition in plant fiber materials by capillary zone electrophoresis

Stella Rovio, Helena Simolin, Krista Koljonen, Heli Sirén

Journal:

Journal of Chromatography A

Year:

2008

Language:

english

File:

PDF, 148 KB

english, 2008

3

Identification of antioxidative compounds in plant beverages by capillary electrophoresis with the marker index technique

Anu Kulomaa, Heli Sirén, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

1997

Language:

english

File:

PDF, 622 KB

english, 1997

4

Silicon–glass instrumented solid-phase extraction–zone electrophoresis microchip with thin amorphous silicon film electrodes: performance in immunoaffinity analysis

Ari Hokkanen, Heli Sirén, Lotta K. Amundsen, Kai Kolari, Sami Franssila, Santeri Tuomikoski, Ingmar Stuns, Stella Rovio, Tarja K. Nevanen, Kristiina Takkinen, Hans Söderlund

Journal:

Microsystem Technologies

Year:

2009

Language:

english

File:

PDF, 357 KB

english, 2009

5

Determination of bromide and potassium in saline groundwaters by capillary electrophoresis without prior dilution

Stella Rovio, Mia Mäntynen, Heli Sirén

Journal:

Applied Geochemistry

Year:

2004

Language:

english

File:

PDF, 235 KB

english, 2004

6

On-Line Flow Injection—Capillary Electrophoresis Instrument with Contactless Conductivity Detection for Sensitive Cation Analyses

Sprung, Christoph, Sirén, Heli, Rovio, Stella, Työppönen, Teemu

Journal:

Separation Science and Technology

Year:

2008

Language:

english

File:

PDF, 304 KB

english, 2008

7

Effect of porogen solvent on the properties of nickel ion imprinted polymer materials prepared by inverse suspension polymerization

Meouche, Walid, Laatikainen, Katri, Margaillan, André, Silvonen, Timka, Siren, Heli, Sainio, Tuomo, Beurroies, Isabelle, Denoyel, Renaud, Branger, Catherine

Journal:

European Polymer Journal

Year:

2017

Language:

english

File:

PDF, 1.98 MB

english, 2017

8

Terminology of bioanalytical methods (IUPAC Recommendations 2018)

Labuda, Ján, Bowater, Richard P., Fojta, Miroslav, Gauglitz, Günter, Glatz, Zdeněk, Hapala, Ivan, Havliš, Jan, Kilar, Ferenc, Kilar, Aniko, Malinovská, Lenka, Sirén, Heli M. M., Skládal, Petr, Torta,

Journal:

Pure & Applied Chemistry

Year:

2018

Language:

english

File:

PDF, 427 KB

english, 2018

9

Effect of buffering and buffer replenishment on repeatability in capillary electrophoresis

István E. Valkó, Heli Sirén, Marja-Liisa Riekkola, Juho H. Jumppanen

Journal:

Journal of Microcolumn Separations

Year:

1996

Language:

english

File:

PDF, 547 KB

english, 1996

10

Characteristics of electroosmotic flow in capillary electrophoresis in water and in organic solvents without added ionic species

István E. Valkó, Heli Sirén, Marja-Liisa Riekkola

Journal:

Journal of Microcolumn Separations

Year:

1999

Language:

english

File:

PDF, 239 KB

english, 1999

11

Optimization of capillary electrophoretic- electrospray ionization-mass spectrometric analysis of catecholamines

Katariina Vuorensola, Juha Kokkonen, Heli Sirén, Raimo A. Ketola

Journal:

ELECTROPHORESIS

Year:

2001

Language:

english

File:

PDF, 636 KB

english, 2001

12

On-line measurement of pulp water anions by capillary electrophoresis with fast sequential sampling and dynamic solvent feeding

Heli Sirén, Stella Rovio, Teemu Työppönen, Pertti Vastamäki

Journal:

Journal of Separation Science

Year:

2002

Language:

english

File:

PDF, 470 KB

english, 2002

13

Introduction of migration indices for identification: Chiral separation of some β-blockers by using cyclodextrins in micellar electrokinetic capillary chromatography

Heli Sirén, Juho H. Jumppanen, Kirsi Manninen, Prof. Marja-Liisa Riekkola

Journal:

ELECTROPHORESIS

Year:

1994

Language:

english

File:

PDF, 552 KB

english, 1994

14

Optimized separation of seven corticosteroids by micellar electrokinetic chromatography

Juho H. Jumppanen, Susanne K. Wiedmer, Heli Sirén, Professor Marja-Liisa Riekkola, Heikki Haario

Journal:

ELECTROPHORESIS

Year:

1994

Language:

english

File:

PDF, 605 KB

english, 1994

15

Determination of association constants of dansyl-amino acids and β-cyclodextrin in N-methylformamide by capillary electrophoresis

Dr. István E. Valkó, Heli Sirén, Marja-Liisa Riekkola

Journal:

ELECTROPHORESIS

Year:

1997

Language:

english

File:

PDF, 424 KB

english, 1997

16

Determination of serum corticosteroids by mixed micellar electrokinetic capillary chromatography with sodium dodecyl sulfate and sodium cholate

Susanne K. Wiedmer, Heli Sirén, Professor Marja-Liisa Riekkola

Journal:

ELECTROPHORESIS

Year:

1997

Language:

english

File:

PDF, 390 KB

english, 1997

17

Nonaqueous capillary electrophoretic separation of polyphenolic compounds in wine using coated capillaries at high pH in methanol

Zuzana Demianová, Heli Sirén, Ruth Kuldvee, Marja-Liisa Riekkola

Journal:

ELECTROPHORESIS

Year:

2003

Language:

english

File:

PDF, 113 KB

english, 2003

18

Isotachophoresis of β-blockers in a capillary and on a poly(methyl methacrylate) chip

Pirkko Kriikku, Benedikt Graß, Ari Hokkanen, Ingmar Stuns, Heli Sirén

Journal:

ELECTROPHORESIS

Year:

2004

Language:

english

File:

PDF, 139 KB

english, 2004

19

Immunoaffinity CE in clinical analysis of body fluids and tissues

Lotta K. Amundsen, Heli Sirén

Journal:

ELECTROPHORESIS

Year:

2007

Language:

english

File:

PDF, 371 KB

english, 2007

20

Determination of neutral carbohydrates by CZE with direct UV detection

Stella Rovio, Jari Yli-Kauhaluoma, Heli Sirén

Journal:

ELECTROPHORESIS

Year:

2007

Language:

english

File:

PDF, 300 KB

english, 2007

21

Microscale immunoaffinity SPE and MEKC in fast determination of testosterone in male urine

Lotta K. Amundsen, Tarja K. Nevanen, Kristiina Takkinen, Stella Rovio, Heli Sirén

Journal:

ELECTROPHORESIS

Year:

2007

Language:

english

File:

PDF, 327 KB

english, 2007

22

Determination of association constants between steroid compounds and albumins by partial-filling ACE

Lotta K. Amundsen, Heli Sirén

Journal:

ELECTROPHORESIS

Year:

2007

Language:

english

File:

PDF, 334 KB

english, 2007

23

Effect of alkali metals and metal-ammonia complexes on electroosmosis, effective field strength, and resolution in the separation of diuretics by CZE

Juho H. Jumppanen, Heli Sirén, Marja-Liisa Riekkola

Journal:

Journal of Separation Science

Year:

1994

Language:

english

File:

PDF, 616 KB

english, 1994

24

Comparison of partial filling MEKC analyses of steroids with use of ESI-MS and UV spectrophotometry

Lotta K. Amundsen, Juha T. Kokkonen, Heli Sirén

Journal:

Journal of Separation Science

Year:

2008

Language:

english

File:

PDF, 1.29 MB

english, 2008

25

Separation of catecholamines by capillary electrophoresis using in-run modified surfaces and covalently bonded surface coatings in capillaries

Heli Sirén, Katariina Vuorensola

Journal:

Journal of Microcolumn Separations

Year:

2001

Language:

english

File:

PDF, 106 KB

english, 2001

26

Correlation of resolution with frictional coefficients and pKa values in capillary electrophoresis of four diuretics: Determination of electric field strength and electroosmotic velocity

Juho H. Jumppanen, Heli Sirén, Marja-Liisa Riekkola, Olle Söderman

Journal:

Journal of Microcolumn Separations

Year:

1993

Language:

english

File:

PDF, 483 KB

english, 1993

27

Determination of metal ions by on-line complexation and ion-pair chromatography

Heli Sirén, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

1992

Language:

english

File:

PDF, 693 KB

english, 1992

28

Capillary electrophoresis in the determination of anionic catecholamine metabolites from patients’ urine

Heli Sirén, Marjo Mielonen, Mare Herlevi

Journal:

Journal of Chromatography A

Year:

2004

Language:

english

File:

PDF, 177 KB

english, 2004

29

Capillary zone electrophoresis of cationic and anionic drugs in methanol

Heli Sirén, Ruth Kuldvee, Tiina Karla, Tiina Ekström, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

2005

Language:

english

File:

PDF, 295 KB

english, 2005

30

Partial filling micellar electrokinetic chromatography analysis of androgens and testosterone derivatives using two sequential pseudostationary phases

Lotta K. Amundsen, Heli Sirén

Journal:

Journal of Chromatography A

Year:

2006

Language:

english

File:

PDF, 322 KB

english, 2006

31

On-line process monitoring of water-soluble ions in pulp and paper machine waters by capillary electrophoresis

Raimo Kokkonen, Heli Sirén, Seppo Kauliomäki, Stella Rovio, Kaija Luomanperä

Journal:

Journal of Chromatography A

Year:

2004

Language:

english

File:

PDF, 443 KB

english, 2004

32

Analysis of anabolic steroids by partial filling micellar electrokinetic capillary chromatography and electrospray mass spectrometry

Lotta Karina Amundsen, Juha T Kokkonen, Stella Rovio, Heli Sirén

Journal:

Journal of Chromatography A

Year:

2004

Language:

english

File:

PDF, 118 KB

english, 2004

33

Migration behaviour and separation of tramadol metabolites and diastereomeric separation of tramadol glucuronides by capillary electrophoresis

Päivi Lehtonen, Heli Siren, Ilkka Ojanperä, Risto Kostiainen

Journal:

Journal of Chromatography A

Year:

2004

Language:

english

File:

PDF, 140 KB

english, 2004

34

Capillary electrophoresis of diuretics and probenecid in methanol

Heli Sirén, Ruth Shimmo, Piritta Sipola, Suzana Abenet, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

2008

Language:

english

File:

PDF, 343 KB

english, 2008

35

Determination of the carboxylic acids in acidic and basic process samples by capillary zone electrophoresis

Stella Rovio, Anna Kalliola, Heli Sirén, Tarja Tamminen

Journal:

Journal of Chromatography A

Year:

2010

Language:

english

File:

PDF, 454 KB

english, 2010

36

Capillary electrophoresis for the monitoring of carboxylic acid production by Gluconobacter oxydans

Heidi Turkia, Heli Sirén, Juha-Pekka Pitkänen, Marilyn Wiebe, Merja Penttilä

Journal:

Journal of Chromatography A

Year:

2010

Language:

english

File:

PDF, 463 KB

english, 2010

37

Application of capillary electrophoresis to determine metal cations, anions, organic acids, and carbohydrates in some Pinot Noir red wines

Stella Rovio, Kimmo Sirén, Heli Sirén

Journal:

Year:

2011

Language:

english

File:

PDF, 417 KB

english, 2011

38

Capillary electrophoresis with UV detection and mass spectrometry in method development for profiling metabolites of steroid hormone metabolism

Heli Sirén, Tuulikki Seppänen-Laakso, Matej Orešič

Journal:

Journal of Chromatography B

Year:

2008

Language:

english

File:

PDF, 1.16 MB

english, 2008

39

Isolation of aucubin and catalpol from Melitaea cinxia larvae and quantification by micellar electrokinetic capillary chromatography

Johanna Suomi, Heli Sirén, Susanne K Wiedmer, Marja-Liisa Riekkola

Journal:

Analytica Chimica Acta

Year:

2001

Language:

english

File:

PDF, 268 KB

english, 2001

40

Determination of urinary catecholamines with capillary electrophoresis after solid-phase extraction

Katariina Vuorensola, Heli Sirén

Journal:

Journal of Chromatography A

Year:

2000

Language:

english

File:

PDF, 237 KB

english, 2000

41

Determination of soluble anions and cations from waters of pulp and paper mills with on-line coupled capillary electrophoresis

Heli Sirén, Raimo Kokkonen, Tarja Hiissa, Timo Särme, Olli Rimpinen, Risto Laitinen

Journal:

Journal of Chromatography A

Year:

2000

Language:

english

File:

PDF, 451 KB

english, 2000

42

Direct monitoring of glycohemoglobin A1c in the blood samples of diabetic patients by capillary electrophoresis: Comparison with an immunoassay method

Heli Sirén, Päivi Laitinen, Ursula Turpeinen, Päivi Karppinen

Journal:

Journal of Chromatography A

Year:

2002

Language:

english

File:

PDF, 301 KB

english, 2002

43

Capillary electrophoretic separation of dicarboxylic acids in atmospheric aerosol particles

Heidi Adler, Heli Sirén, Markku Kulmala, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

2003

Language:

english

File:

PDF, 323 KB

english, 2003

44

Comparison of capillary electrophoresis systems for the reliable identification of some carboxylic acids using the marker technique

Susanne K. Wiedmer, Heli Sirén, Marja-Liisa Riekkola, Juho H. Jumppanen

Journal:

Journal of Chromatography A

Year:

1997

Language:

english

File:

PDF, 617 KB

english, 1997

45

Selectivity in capillary electrophoresis in the presence of micelles, chiral selectors and non-aqueous media

Marja-Liisa Riekkola, Susanne K Wiedmer, István E Valkó, Heli Sirén

Journal:

Journal of Chromatography A

Year:

1997

Language:

english

File:

PDF, 477 KB

english, 1997

46

Separation, purity testing and identification of cyanobacterial hepatotoxins with capillary electrophoresis and electrospray mass spectrometry

Heli Sirén, Matti Jussila, Huwei Liu, Sanna Peltoniemi, Kaarina Sivonen, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

1999

Language:

english

File:

PDF, 380 KB

english, 1999

47

Quantification of anions and cations in environmental water samples: Measurements with capillary electrophoresis and indirect-UV detection

Tarja Hiissa, Heli Sirén, Tapio Kotiaho, Margit Snellman, Aimo Hautojärvi

Journal:

Journal of Chromatography A

Year:

1999

Language:

english

File:

PDF, 219 KB

english, 1999

48

Study of catecholamines in patient urine samples by capillary electrophoresis

Heli Sirén, Ulla Karjalainen

Journal:

Journal of Chromatography A

Year:

1999

Language:

english

File:

PDF, 181 KB

english, 1999

49

Extraction of iridoid glycosides and their determination by micellar electrokinetic capillary chromatography

Johanna Suomi, Heli Sirén, Kari Hartonen, Marja-Liisa Riekkola

Journal:

Journal of Chromatography A

Year:

2000

Language:

english

File:

PDF, 877 KB

english, 2000

50

Validated method for the quantitation of quercetin from human plasma using high-performance liquid chromatography with electrochemical detection

Iris Erlund, Georg Alfthan, Heli Siren, Kari Ariniemi, Antti Aro

Journal:

Journal of Chromatography B: Biomedical Sciences and Applications

Year:

1999

Language:

english

File:

PDF, 366 KB

english, 1999