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1

High-performance liquid chromatography on dynamically modified silica : II. Modification of various silica packings with cetyltrimethylammonium bromide

Steen Honoré Hansen, Per Helboe, Mogens Thomsen, Ulla Lund

Journal:

Journal of Chromatography A

Year:

1981

Language:

english

File:

PDF, 390 KB

english, 1981

2

Mass spectrometry of xanthones-I: The electron-impact-induced fragmentation of xanthone, monohydroxy- and monomethoxyxanthones

Peter Arends, Per Helboe, Jøgen Møller

Journal:

Journal of Mass Spectrometry

Year:

1973

Language:

english

File:

PDF, 587 KB

english, 1973

3

Adsorption capacity and surface area measurements in high-performance liquid chromatography on dynamically modified silica

Steen Honoré Hansen, Per Helboe, Ulla Lund

Journal:

Journal of Chromatography A

Year:

1983

Language:

english

File:

PDF, 232 KB

english, 1983

4

High-performance liquid chromatography on dynamically modified silica VIII. Gradient elution using eluents containing cetyltrimethylammonium bromide

Steen Honoré Hansen, Per Helboe, Mogens Thomsen

Journal:

Journal of Chromatography A

Year:

1988

Language:

english

File:

PDF, 377 KB

english, 1988

5

Controlling the retention of clopenthixol and other basic drug substances by reversed-phase ion-pair chromatography on bonded-phase materials using two counter-ions of opposite charge

Journal:

Journal of Chromatography A

Year:

1990

Language:

english

File:

PDF, 550 KB

english, 1990

6

Chiral separations of β-blocking drug substances using derivatization with chiral reagents and normal-phase high-performance liquid chromatography

Lars Olsen, Kirsten Brønnum-Hansen, Per Helboe, Gorm Herlev Jørgensen, Sonja Kryger

Journal:

Journal of Chromatography A

Year:

1993

Language:

english

File:

PDF, 726 KB

english, 1993

7

Dynamically modified silica — the use of bare silica in reversed-phase high-performance liquid chromatography

Steen Honoré Hansen, Per Helboe, Mogens Thomsen

Journal:

TrAC Trends in Analytical Chemistry

Year:

1985

Language:

english

File:

PDF, 596 KB

english, 1985

8

Separation of basic drugs by high-performance liquid chromatography using dynamically modified silica

Steen Honore Hansen, Per Helboe, Mogens Thomsen

Journal:

TrAC Trends in Analytical Chemistry

Year:

1988

Language:

english

File:

PDF, 527 KB

english, 1988

9

Separation of catecholamines by high-performance liquid chromatography on dynamically-modified silica

Journal:

Journal of Pharmaceutical and Biomedical Analysis

Year:

1985

Language:

english

File:

PDF, 416 KB

english, 1985

10

Aluminium in antihaemophilia preparations as determined by electrothermal atomic absorption spectrophotometry

Jan Rud Andersen, Per Helboe

Journal:

Journal of Pharmaceutical and Biomedical Analysis

Year:

1986

Language:

english

File:

PDF, 257 KB

english, 1986

11

Separation of glucosinolates by high-performance liquid chromatography

Per Helboe, Ole Olsen, Hilmer Sørensen

Journal:

Journal of Chromatography A

Year:

1980

Language:

english

File:

PDF, 452 KB

english, 1980

12

Improved high-performance liquid chromatographic method for the comparison of heptaene macrolide antibiotics

Per Helboe, Mogens Thomsen, Steen Honoré Hansen

Journal:

Journal of Chromatography A

Year:

1980

Language:

english

File:

PDF, 412 KB

english, 1980

13

Determination of impurities in propanol hydrochloride by high-performance liquid chromatography on dynamically modified silica

Journal:

Journal of Chromatography A

Year:

1982

Language:

english

File:

PDF, 589 KB

english, 1982

14

High-performance liquid chromatography on dynamically modified silica : VII. Influence of apparent surface pH of silica compared with the effects in straight-phase chromatography

Steen Honoré Hansen, Per Helboe, Mogens Thomsen

Journal:

Journal of Chromatography A

Year:

1986

Language:

english

File:

PDF, 553 KB

english, 1986

15

High-performance liquid chromatography on dynamically modified silica : VI. Modification of silica of various pore diameters and particle sizes using cetyltrimethylammonium bromide

Steen Honoré Hansen, Per Helboe, Mogens Thomsen

Journal:

Journal of Chromatography A

Year:

1986

Language:

english

File:

PDF, 545 KB

english, 1986

16

Improved high-performance liquid chromatographic method for simultaneous determination of neamine, neomycin B and neomycin C in neomycin sulphate

Per Helboe, Sonja Kryger

Journal:

Journal of Chromatography A

Year:

1982

Language:

english

File:

PDF, 377 KB

english, 1982

17

High-performance liquid chromatography on dynamically modified silica: III. Modification of silica with long-chain and symmetrical quarternary ammonium compounds

Steen Honoré Hansen, Per Helboe, Ulla Lund

Journal:

Journal of Chromatography A

Year:

1982

Language:

english

File:

PDF, 630 KB

english, 1982

18

High-performance liquid chromatography on dynamically modified silica : V. Influence of nature and concentration of organic modifier in eluents containing cetyltrimethylammonium bromide

Steen Honoré Hansen, Per Helboe

Journal:

Journal of Chromatography A

Year:

1984

Language:

english

File:

PDF, 568 KB

english, 1984

19

Separation of corticosteroids by high-performance liquid chromatography on dynamically modified silica

Journal:

Journal of Chromatography A

Year:

1986

Language:

english

File:

PDF, 426 KB

english, 1986

20

Determination of impurities in dextropropoxyphene hydrochloride by high-performance liquid chromatography on dynamically modified silica

Sonja Kryger, Per Helboe

Journal:

Journal of Chromatography A

Year:

1991

Language:

english

File:

PDF, 448 KB

english, 1991

21

High-performance liquid chromatography on dynamically modified silica : IV. Effects of variations of pH, ionic strength and buffer composition in eluents containing cetyltrimethylammonium bromide

Steen Honoré Hansen, Per Helboe, Ulla Lund

Journal:

Journal of Chromatography A

Year:

1983

Language:

english

File:

PDF, 606 KB

english, 1983

22

Bare silica, dynamically modified with long-chain quaternary ammonium ions — the technique of choice for more reproducible selectivity in reversed-phase high-performance liquid chromatography

Steen Honoré Hansen, Per Helboe, Mogens Thomsen

Journal:

Journal of Chromatography A

Year:

1991

Language:

english

File:

PDF, 1.30 MB

english, 1991

23

Separation of basic drug substances by reversed-phase high-performance liquid chromatography on dynamically modified silica and on bonded-phase materials

Steen Honoré Hansen, Per Helboe, Mogens Thomsen

Journal:

Journal of Chromatography A

Year:

1987

Language:

english

File:

PDF, 660 KB

english, 1987

24

Separation and quantitative determination of long-chain alkyltrimethylammonium ions by reversed-phase ion-pair liquid chromatography using ultraviolet-absorbing counter ions

Journal:

Journal of Chromatography A

Year:

1983

Language:

english

File:

PDF, 391 KB

english, 1983

25

Localization and mRNA expression of somatostatin receptor subtypes in human prostatic tissue and prostate cancer cell lines

Nishtman Dizeyi, Lutz Konrad Ph.D, Anders Bjartell, Hao Wu, Virgil Gadaleanu, Jens Hansson, Lone Helboe, Per-Anders Abrahamsson

Journal:

Urologic Oncology: Seminars and Original Investigations

Year:

2002

Language:

english

File:

PDF, 446 KB

english, 2002

26

Separation and quantitative determination of homatropine methylbromide and opium alkaloids in admixture in pharmaceutical preparations by gas-liquid and high-performance liquid chromatography

Majlat, Pal, Helboe, Per, Kristensen, Agnete Kjaervig

Journal:

International Journal of Pharmaceutics

Year:

1981

Language:

english

File:

PDF, 673 KB

english, 1981

27

PARIS.

Helboe, Per, Thomsen, Mogens

Journal:

Year:

1917

Language:

english

File:

PDF, 193 KB

english, 1917

28

Single-dose determination of suppositories containing phenylephrine. Lidocaine and betamethasone valerate by reversed-phase ion-pair liquid chromatography

Helboe, Per, Thomsen, Mogens

Journal:

International Journal of Pharmaceutics

Year:

1979

Language:

english

File:

PDF, 556 KB

english, 1979

29

Characterisation of candicidin and levorin by means of high-performance size-exclusion liquid chromatography

Helboe, Per, Thomsen, Mogens

Journal:

The Analyst (Royal Society of Chemistry)

Year:

1981

Language:

english

File:

PDF, 312 KB

english, 1981

30

[IEEE 2006 7th International Conference on Information Technology Based Higher Education and Training - Ultimo, Australia (2006.07.10-2006.07.13)] 2006 7th International Conference on Information Technology Based Higher Education and Training - Changes in roles and behavior of learners and teachers when going for POPBL

Borch, Ole E. M., Helbo, Jan, Madsen, Per Printz

Year:

2006

Language:

english

File:

PDF, 7.52 MB

english, 2006

31

Risk Perceptions in Diabetic Patients Who Have Experienced Adverse Events: Implications for Patient Involvement in Regulatory Decisions

Sachs, Mikkel Lindskov, Sporrong, Sofia Kälvemark, Colding-Jørgensen, Morten, Frokjaer, Sven, Helboe, Per, Jelic, Katarina, Kaae, Susanne

Journal:

Pharmaceutical Medicine

Year:

2017

Language:

english

File:

PDF, 697 KB

english, 2017

32

ChemInform Abstract: SYNTHESIS AND RESOLUTION OF VINYLGLYCINE, A BETA,GAMMA-UNSATURATED ALPHA-AMINO ACID

FRIIS, PALLE, HELBOE, PER, LARSEN, PEDER OLESEN

Journal:

Chemischer Informationsdienst

Year:

1974

File:

PDF, 112 KB

1974

33

Danish Physicians’ Views on the Appropriateness of the Involvement of Patients with Type 2 Diabetes in Regulatory Decision Making: A Qualitative Study

Sachs, Mikkel Lindskov, Colding-Jørgensen, Morten, Helboe, Per, Sporrong, Sofia Kälvemark, Frøkjaer, Sven, Jelic, Katarina, Kaae, Susanne

Journal:

Pharmaceutical Medicine

Year:

2019

Language:

english

File:

PDF, 729 KB

english, 2019

34

Setup strategies and uncertainties in esophageal radiotherapy based on detailed intra- and interfractional tumor motion mapping

Hoffmann, Lone, Poulsen, Per R., Ravkilde, Thomas, Bertholet, Jenny, Kruhlikava, Iryna, Helbo, Bjørn L., Schmidt, Mai L., Nordsmark, Marianne

Journal:

Radiotherapy and Oncology

Year:

2019

Language:

english

File:

PDF, 1.77 MB

english, 2019

35

ChemInform Abstract: XANTHONUNTERSUCHUNGEN 4. MITT. OH-PROTONEN-CHEMISCHE VERSCHIEBUNGEN BEI DER STRUKTURUNTERSUCHUNG VON XANTHONEN

ARENDS, PETER, HELBOE, PER

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 100 KB

1973