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Featured researches published by Berit Fjærtoft Pedersen.


European Food Research and Technology | 1987

Sudanrot G als Zusatz in Gelbwurzel (Curcuma longa L.)

Ragnar Salmén; Berit Fjærtoft Pedersen; Karl Egil Malterud

Eine rote Substanz wurde aus einer tanzanianischen Gelbwurzelprobe (Curcuma Tonga L.) isoliert und durch Rontgen-Einkristall-Analyse als Azofarbstoff Sudanrot G (1-(2-Methoxyphenylazo)-2-naphthol) identifiziert. Die Konzentration des Pigments in der Droge war 0,09%, aus UV-spektroskopischen Daten berechnet.ZusammenfassungEine rote Substanz wurde aus einer tanzanianischen Gelbwurzelprobe (Curcuma Tonga L.) isoliert und durch Röntgen-Einkristall-Analyse als Azofarbstoff Sudanrot G (1-(2-Methoxyphenylazo)-2-naphthol) identifiziert. Die Konzentration des Pigments in der Droge war 0,09%, aus UV-spektroskopischen Daten berechnet.SummaryA red substance was isolated from a Tanzanian sample of turmeric (Curcuma longa L.) and identified by X-ray single crystal analysis as the azo dye Sudan Red G (1-(2-methoxyphenylazo)-2-naphthol). The concentration of the dye in the spice was 0.09%, as calculated from the UV spectrum.


Acta Chemica Scandinavica | 1992

Molecular and crystal structure of a lanthanide complex, DyDTPA-BMA hydrate

Lisbeth Ehnebom; Berit Fjærtoft Pedersen; W. M. Lyttle; N.E. Brese; Åke Oskarsson; Daniel R. Carcanague; Ito Chao; K. N. Houk


Acta Chemica Scandinavica | 1988

Crystallographic studies of molecular complexes containing hexafluorobenzene

Tor Dahl; Berit Fjærtoft Pedersen; Frode Mo; Thorvald Pedersen; L. B. Zinner; F. Lehrich; Claus J. Nielsen; M. Trætteberg


Acta Chemica Scandinavica | 1988

Structures of the azo dyes Sudan Red G [1-(2-methoxyphenylazo)-2-naphthol], C17H14N2O2, and Sudan Yellow (1-phenylazo-2-naphthol), C16H12N2O

Ragnar Salmén; Karl Egil Malterud; Berit Fjærtoft Pedersen; Paula L. Reidy; Leiv K. Sydnes; V. Sinnwell; S. I. Khan; L. V. Vilkov; Kristian Rypdal


Acta Chemica Scandinavica | 1996

MOLECULAR AND CRYSTAL STRUCTURE OF SODIUM DIATRIZOATE, AND X-RAY CONTRAST AGENT

Lisbeth Ehnebom Tonnesen; Berit Fjærtoft Pedersen; Jo Klaveness; Ward T. Robinson; Bryan R. Wood; W. Errington; Carl Erik Olsen; Connie N. Rosendahl; Monika Haugg; Nathalie Trabesinger-Rüf; Elmar G. Weinhold


Acta Chemica Scandinavica | 1995

The Mechanism of RuO4-Mediated Oxidations of Ethers: Isotope Effects, Solvent Effects and Substituent Effects.

Jan M. Bakke; Astrid E. Frøhaug; Magnus Paulsson; Berit Fjærtoft Pedersen; Terje Thomassen; Frode Mo; Tamas Bartfai; Ülo Langel


Acta Chemica Scandinavica | 1993

Molecular and Crystal Structures of Two Chelating Agents for Use in MRI Contrast Agents.

Lisbeth Ehnebom; Berit Fjærtoft Pedersen; Jo Klaveness; Anne K. Jensen; Teddy K. Thorsen; Philip Coppens; Ole Buchardt


Acta Chemica Scandinavica | 1995

Molecular and Crystal Structure of Iodixanol, a New X-Ray Contrast Agent.

Lisbeth Ehnebom Tonnesen; Berit Fjærtoft Pedersen; Jo Klaveness; Per Halfdan Nielsen; David J. Timmerman-Vaughan; Barbara Pniewska; Danuta Rasala; Ryszard Gawinecki


Acta Chemica Scandinavica | 1988

Three-coordinated divalent tellurium complexes: the crystal and molecular structures of chloro(phenyl)(trimethyleneselenourea)tellurium(II) and bromo(phenyl)(trimethylenethiourea)tellurium(II)

Sverre Hauge; Olav Vikane; Berit Fjærtoft Pedersen; Paula L. Reidy; Leiv K. Sydnes; V. Sinnwell; S. I. Khan; L. V. Vilkov; Kristian Rypdal


Acta Chemica Scandinavica | 1995

STRUCTURAL STUDIES OF A PARTICULATE X-RAY CONTRAST AGENT : A MULTI-METHOD APPROACH

Lisbeth Ehnebom Tonnesen; Rune Fossheim; Jo Klaveness; Berit Fjærtoft Pedersen; Terje Thomassen; Frode Mo; Tamas Bartfai; Ülo Langel

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Frode Mo

Norwegian University of Science and Technology

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L. V. Vilkov

Moscow State University

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Tamas Bartfai

Scripps Research Institute

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