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1)
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Ehlers
D. and Bartholomae S.: Analysis of CO2 vanilla extracts by HPLC.
Comparison with the usual alcoholic extracts. Zeitschrift für Lebensmittel-Untersuchung und
-Forschung 197 (1993) 550-557
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2)
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Helle N., Zachäus U., Linke B.,
Ehlers D., Bögl K.W. and Schreiber G.A.: Electron Spin Resonance Spectroscopy
on Packing Material: An Indirekt Identification of Radiation Treatment. Hefte
des Instituts für Sozialmedizin und Epidemiologie des BGA Soz Ep Heft Nr.
14/93
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3)
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Helle N., Zachäus U., Linke B.,
Ehlers D., Bögl K.W. and Schreiber G.A.: Electron Spin Resonance Spectroscopy
on Packing Material: An Indirekt Identification of Radiation Treatment.
E.S.N.A Proceedings of the XXIIIrs Annual Meeting of Food Irradiation 1993
Halle
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4)
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Helle N., Zachäus U., Linke B.,
Ehlers D., Bögl K.W. and Schreiber G.A.: Electron spin resonance spectroscopy
on packaging material: An indirect identification of radiation
treatment. Hefte des Instituts für Sozialmedizin und Epidemiologie
des BGA Soz Ep Heft Nr. 16/93, S. 29-33
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5)
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Ehlers D.,
Pfister M. and Bartholomae S.: Analysis of Tahiti vanilla by high-performance
liquid chromatography. Zeitschrift
für Lebensmittel-Untersuchung und -Forschung 199 (1994) 38-42
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6)
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Ehlers D.,
Hilmer S. and Bartholomae S.: HPLC analysis of supercritical cinnamon and
cassia extracts in comparison with cinnamon and cassia oils. Zeitschrift für Lebensmitteluntersuchung
und -Forschung 200 (1995) 282-288
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7)
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Ehlers
D., Pfister M., Bork W.-R. and Toffel-Nadolny P.: HPLC analysis of tonka bean
extracts. Zeitschrift für
Lebensmitteluntersuchung und -Forschung 201 (1995) 278-282
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8)
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Ehlers
D., Pfister M. and Bartholomae S.: HPLC analysis of natural and artificial
vanilla flavourings. GIT Fachz. Lab. 9 (1995) 765
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9)
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Helle N., Wolbert A., Linke B.,
Ehlers D. and Krüger K.E.: Identification of irradiated fresh fruits by
paramagnetic resonance spectroscopy.Zeitschrift für Lebensmitteluntersuchung
und -Forschung 201 (1995) 355-360
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10)
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Quirin
K.-W., Gerard D. and Ehlers D.: Vanilla CO2-extracts - production,
composition and comparison to alcoholic extracts. In: K.-H. Baser, Flavours,
Fragrances and Essential Oils. Proceedings of the 13th International Congress
of Flavours, Fragrances and Essential Oils, Istanbul, Turkey, 15-19 October
1995, Vol. 2
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11)
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Ehlers
D., Pfister M., Gerard D.,Quirin K.-W. , Bork W.-R. and Toffel-Nadolny P.:
Reducing the coumarin content of tonka beans using supercritical CO2.
International Journal of Food Science and Technology 31 (1996) 91-95
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12)
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Ehlers
D., Platte S., Bork W.-R., Gerard D. and Quirin K.-W.: HPLC analysis of sweet
clover extracts. Deutsche
Lebensmittel-Rundschau 93 (1997) 77-79
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13)
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Ehlers
D. and Pfister M.: Compounds of Vanillons (Vanilla pompona Schiede).
Journal of Essential Oil Research 9 (1997) 427-431
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14)
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Ehlers D.,
Kirchhoff J., Gerard D. and Quirin K.-W.: High-performance liquid chromatography
analysis of nutmeg and mace oils produced by supercritical CO2
extraction - comparison with steam distilled oils - comparison of East
Indian, West Indian and Papuanan oils. International Journal of Food Science
and Technology 33 (1998) 215-223
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15)
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Ehlers
D., Schäfer P., Doliva H. and Kirchhoff J.: Values of vanillin and several
ratios of components – influence of different extraction parameters on the
analysis results of vanilla pods. Deutsche Lebensmittel-Rundschau 95 (1999) 123-129
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16)
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Ehlers D.: HPLC analysis of
commercial products containing vanilla or vanilla flavourings. Deutsche Lebensmittel-Rundschau 95
(2000) 464-468
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17)
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Ehlers D.: HPLC analysis of
commercial products containing vanilla or vanilla flavourings. Forschungsbericht aktuell der
Technischen Fachhochschule Berlin (2000) 83-85
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18)
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Ehlers D.,
Färber J., Martin A., Quirin K.-W. and Gerard D.: Analysis of essential
fennel oils – comparison of CO2 extracts and steam-distilled
oils. Deutsche
Lebensmittel-Rundschau 96 (2000) 330-335
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19)
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Quirin
K.-W.., Gerard D. and Ehlers D.: Production of essential oils, steam
distillation vs. CO2-extraction.FRAGRANCES – SÖFW-Journal 126
(2000) 65-70
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20)
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Ehlers D.,
Nguyen T., Quirin K.-W. and Gerard D.: Analysis of essential basil oils – CO2
extracts and steam-distilled oils. Deutsche Lebensmittel-Rundschau 97 (2001) 245-250
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21)
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Ehlers D. and
Schäning J.: Synthesis of DOC (2,5-Dimethoxy-4-chloro-amphetamine). Toxichem+Krimtech 68/2 (2001) 62-67
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22)
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Ehlers D.:
Handelsprodukte mit Vanille oder Vanillearoma – Untersuchung und rechtliche
Situation, GDL-Kongress Stuttgart 2003, Tagungsband (im Druck)
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23)
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Ehlers D.: Handelsprodukte mit
Vanille oder Vanillearoma, Vortrag März 2004 GDCH-Lebensmittelchemische
Gesellschaft, RV Nord/Nord-Ost. Lebensmittelchemie 58 (2004), 128-129
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24)
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Littmann-Nienstedt S. und Ehlers D.:
Verfahren zur Beurteilung von Produkten mit Vanille oder Vanillearomen mit
einer modifizierten Verhältniszahl. Deutsche Lebensmittel-Rundschau 101
(2005), 182-187
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25)
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Ehlers
D., Czech E., Quirin K.-W. and Weber R.: Distribution of Aflatoxins between
Extract and Extraction Residue of Paprika using Supercritical Carbon Dioxide.
Phytochemical Analysis 17 (2006), 114-120
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26)
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Beyer
J., Ehlers D. and Maurer H.H.: Abuse of Nutmeg (Myristica fragrans Houtt.). Studies on the Metabolism and the
Toxicological Detection of its Ingredients Elemicin, Myristicin and Safrole in
Rat and Human Urine Using Gas Chromatography/Mass Spectrometry. Therapeutic
Drug Monitoring 28 (2006), 568-575
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27)
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Ewald
A.H., Ehlers D. and Maurer H.H.: Metabolism and toxicological detection of the
designer drug 4-chloro-2,5-dimethoxyamphetamine in rat urine using gas
chromatography-mass spectrometry. Anal Bioanal Chem (2008) 390:1837-1842
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