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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
(1999) 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
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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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