@article{HoehrPaulssenBenardetal.2014,
  author    = {Hoehr, Cornelia and Paulßen, Elisabeth and Benard, Francois and Lee, Chris Jaeil and Hou, Xinchi and Badesso, Brian and Ferguson, Simon and Miao, Qing and Yang, Hua and Buckley, Ken and Hanemaayer, Victoire and Zeisler, Stefan and Ruth, Thomas and Celler, Anna and Schaffer, Paul},
  title     = {⁴⁴ᶢSc production using a water target on a 13 MeV cyclotron},
  series = {Nuclear medicine and biology},
  volume    = {41},
  journal   = {Nuclear medicine and biology},
  number    = {5},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9614},
  doi       = {10.1016/j.nucmedbio.2013.12.016},
  pages     = {401 -- 406},
  year      = {2014},
  abstract  = {Access to promising radiometals as isotopes for novel molecular imaging agents requires that they are routinely available and inexpensive to obtain. Proximity to a cyclotron center outfitted with solid target hardware, or to an isotope generator for the metal of interest is necessary, both of which can introduce significant hurdles in development of less common isotopes. Herein, we describe the production of ⁴⁴Sc (t₁⸝₂ = 3.97 h, Eavg,β⁺ = 1.47 MeV, branching ratio = 94.27\%) in a solution target and an automated loading system which allows a quick turn-around between different radiometallic isotopes and therefore greatly improves their availability for tracer development. Experimental yields are compared to theoretical calculations.},
  language  = {en}
}
@article{WernerGroebelWagneretal.2011,
  author    = {Werner, Frederik and Groebel, Simone and Wagner, Torsten and Yoshinobu, Tatsuo and Selmer, Thorsten and Baumann, Marcus and Sch{\"o}ning, Michael Josef},
  title     = {{\"U}berwachung der metabolischen Aktivit{\"a}t von Mikroorganismen zur Kontrolle des biologischen Prozesses im Biogasfermenter},
  series = {Biogas 2011 : Energietr{\"a}ger der Zukunft ; 6. Fachtagung, Fachtagung Braunschweig, 08. und 09. Juni 2011 / VDI Energie und Umwelt},
  journal   = {Biogas 2011 : Energietr{\"a}ger der Zukunft ; 6. Fachtagung, Fachtagung Braunschweig, 08. und 09. Juni 2011 / VDI Energie und Umwelt},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-18-092121-1},
  pages     = {285 -- 286},
  year      = {2011},
  language  = {de}
}
@article{MangHaulena1998,
  author    = {Mang, Thomas and Haulena, Friedhelm},
  title     = {{\"O}kologisch vertr{\"a}gliche Dichtstoffe gegen dr{\"u}ckendes Wasser},
  series = {Bauchemie von der Forschung bis zur Praxis : (Beitr{\"a}ge der 1. Tagung Bauchemie in M{\"u}nchen) ; 21./22. November 1997 in M{\"u}nchen / GDCh-Fachgruppe Bauchemie ; [GDCh, Gesellschaft Deutscher Chemiker]},
  journal   = {Bauchemie von der Forschung bis zur Praxis : (Beitr{\"a}ge der 1. Tagung Bauchemie in M{\"u}nchen) ; 21./22. November 1997 in M{\"u}nchen / GDCh-Fachgruppe Bauchemie ; [GDCh, Gesellschaft Deutscher Chemiker]},
  publisher = {GDCh},
  address   = {Frankfurt am Main},
  isbn      = {3-924763-69-0},
  pages     = {44},
  year      = {1998},
  language  = {de}
}
@article{MangHaulenaStuckenbruck1995,
  author    = {Mang, Thomas and Haulena, Friedhelm and Stuckenbruck, U.},
  title     = {{\"O}kologisch vertr{\"a}gliche Dichtstoffe},
  series = {Umwelt. 25 (1995), H. 10},
  journal   = {Umwelt. 25 (1995), H. 10},
  isbn      = {0041-6355},
  pages     = {430 -- 441},
  year      = {1995},
  language  = {de}
}
@article{LassonczykGrupe1995,
  author    = {Lassonczyk, Beate and Grupe, M.},
  title     = {{\"O}koaudit - ein neues Arbeitsfeld, auch f{\"u}r die Bodenkunde / Grupe, M. ; Lassonczyk, B.},
  series = {Festschrift f{\"u}r Horst Wiechmann / Pfeiffer, Eva-Maria [Hrsg.]},
  journal   = {Festschrift f{\"u}r Horst Wiechmann / Pfeiffer, Eva-Maria [Hrsg.]},
  publisher = {Verein zur F{\"o}rderung der Bodenkunde},
  address   = {Hamburg},
  pages     = {63 -- 71},
  year      = {1995},
  language  = {de}
}
@article{BerndtKlostermeyerZahn1972,
  author    = {Berndt, Heinz and Klostermeyer, Henning and Zahn, Helmut},
  title     = {Zur Synthese monomerer cyclischer Cystinpeptidderivate, I : Synthese der Sequenz A 6-9 des Schafinsulins als Cyclocystinylderivat},
  series = {Justus Liebigs Annalen der Chemie},
  volume    = {759},
  journal   = {Justus Liebigs Annalen der Chemie},
  number    = {1},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1099-0690},
  doi       = {10.1002/jlac.19727590109},
  pages     = {114 -- 120},
  year      = {1972},
  abstract  = {Es wird die Synthese der Sequenz A 6-9 des Schafinsulins in der gesch{\"u}tzten Form Boc-Cys-Cys-Ala-Gly-OBuᵗ (5) sowie das Verhalten dieses monomeren cyclischen Cystinpeptidderivates gegen{\"u}ber den in der Peptidchemie gebr{\"a}uchlichen Reagenzien Bortrifluorid/Eisessig, Tri{\"a}thylamin und Hydrazinhydrat beschrieben.},
  language  = {de}
}
@phdthesis{Berndt1972,
  author    = {Berndt, Heinz},
  title     = {Zur Synthese der Sequenz 60-84[Ala71, Gly72, Val73] des Schweineproinsulins als monomeres cyclisches Bis-Cystinpeptidderivat},
  address   = {Aachen},
  pages     = {115 S.},
  year      = {1972},
  language  = {de}
}
@article{WilhelmBerndtBrandenburg1979,
  author    = {Wilhelm, Wolff and Berndt, Heinz and Brandenburg, Dietrich},
  title     = {Zur Synthese der H{\"u}hnerinsulin-A-Kette, I : Darstellung der Fragmente A1-8, A9-15, A1-7 und A8-15},
  series = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie},
  volume    = {360},
  journal   = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie},
  number    = {2},
  issn      = {1437-4315},
  doi       = {10.1515/bchm2.1979.360.2.1559},
  pages     = {1559 -- 1568},
  year      = {1979},
  language  = {de}
}
@article{KotterBeckerRiekert1989,
  author    = {Kotter, Michael and Becker, Dieter and Riekert, Lothar},
  title     = {Zur Selektivit{\"a}t der partiellen Oxidation von Propen an Schalenkatalysatoren / Dieter Becker ; Michael Kotter ; Lothar Riekert},
  series = {Chemie - Ingenieur - Technik. 61 (1989), H. 9},
  journal   = {Chemie - Ingenieur - Technik. 61 (1989), H. 9},
  isbn      = {0009-286X},
  pages     = {748 -- 749},
  year      = {1989},
  language  = {de}
}
@article{SchnabelSchnabelBerndt1971,
  author    = {Schnabel, Eugen and Schnabel, Henning and Berndt, Heinz},
  title     = {Zur selektiven acidolytischen Abspaltbarkeit der tert.-Butyloxycarbonyl-Gruppe},
  series = {Justus Liebigs Annalen der Chemie},
  volume    = {749},
  journal   = {Justus Liebigs Annalen der Chemie},
  number    = {1},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1099-0690},
  doi       = {10.1002/jlac.19717490111},
  pages     = {90 -- 108},
  year      = {1971},
  abstract  = {Die tert.-Butyloxycarbonyl-Gruppe (Boc) l{\"a}ßt sich mittels reiner Trifluoressigs{\"a}ure nicht selektiv neben dem Benzyloxycarbonyl-Rest (Z) abspalten. Das gelingt auch nicht mit L{\"o}sungen von Trifluoressigs{\"a}ure bzw. Chlorwasserstoff in organischen L{\"o}sungsmitteln. Kern-substituierte Z-Gruppen wie Z(pCl), Z(mCl) oder Z(pNO₂) sind zwar stabiler, werden aber von den obengenannten Reagenzien ebenfalls angegriffen bzw. sind nicht mehr acidolytisch abspaltbar. - Mit 70proz. w{\"a}ßriger Trifluoressigs{\"a}ure gelingt die Abspaltung von Boc neben Z dagegen fast selektiv; dabei werden aber Benzylester, besonders Glutamins{\"a}ure-γ-benzylester, teilweise hydrolysiert, w{\"a}hrend Methyl- sowie {\"A}thylester nahezu best{\"a}ndig sind. Die Brauchbarkeit des Abspaltungsverfahrens wird anhand der schrittweise durchgef{\"u}hrten Synthese zweier Heptapeptid-Derivate gezeigt. - {\"A}hnlich spezifisch gelingt die Abspaltung von Boc mit Bortrifluorid-{\"a}therat in Eisessig; Benzylester sind gegen{\"u}ber diesem Reagenz stabiler als gegen w{\"a}ßrige Trifluoressigs{\"a}ure. Das Bortrifluorid-Verfahren eignet sich besonders f{\"u}r die Abspaltung von Boc-Gruppen neben s{\"a}urelabilen Thiol-Schutzgruppen (Tetrahydropyranyl- bzw. Trityl-Rest) sowie neben dem Cyclocystinyl-Rest. Die Leistungsf{\"a}higkeit der Methode wird durch die Synthese zweier Peptid-Derivate mit S-Trityl-Schutzgruppen belegt. Als Nebenreaktion ist die Acetylierung von aliphatischen Hydroxylgruppen m{\"o}glich. Sie l{\"a}ßt sich vermeiden, wenn man die Spaltung in anderen L{\"o}sungsmitteln durchf{\"u}hrt. Die als Modellverbindungen f{\"u}r Stabilit{\"a}tsuntersuchungen verwendeten Nε-acylierten Lysin-Derivate werden mit dem Aminos{\"a}ureanalysator quantitativ neben Lysin bestimmt.},
  language  = {de}
}
@inproceedings{SchnabelBerndt1973,
  author    = {Schnabel, Eberhard and Berndt, Heinz},
  title     = {Zur selektive Abspaltbarkeit der t-Butyloxycarbonylgruppe},
  series = {Peptides 1971 : proceedings of the Eleventh European Peptide Symposium, Vienna, Austria, April 1971},
  booktitle = {Peptides 1971 : proceedings of the Eleventh European Peptide Symposium, Vienna, Austria, April 1971},
  editor    = {Nesvadba, H.},
  publisher = {North-Holland Publ. [u.a.]},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-7204-4120-X},
  pages     = {69 -- 70},
  year      = {1973},
  language  = {en}
}
@article{Berndt1980,
  author    = {Berndt, Heinz},
  title     = {Zur Reaktion von Iminodithiocarbonaten mit Carbons{\"a}uren. I : Synthese des Modellpeptid-Derivates Z-(L)-Ala-(L/D)-Phe-(L)-Val-OMe},
  series = {Tetrahedron letters},
  volume    = {21},
  journal   = {Tetrahedron letters},
  number    = {34},
  issn      = {0040-4039},
  doi       = {10.1016/S0040-4039(00)78663-1},
  pages     = {3265 -- 3268},
  year      = {1980},
  language  = {de}
}
@article{Scherer1997,
  author    = {Scherer, Ulrich W.},
  title     = {Zur Radiopharmazie kardialer und kardiovaskul{\"a}rer Radiopharmazeutika},
  series = {Kardiologische Nuklearmedizin / G. H{\"o}r [Hrsg.]},
  journal   = {Kardiologische Nuklearmedizin / G. H{\"o}r [Hrsg.]},
  publisher = {ecomed},
  address   = {Landsberg},
  isbn      = {3-609-62970-3},
  pages     = {27 -- 42},
  year      = {1997},
  language  = {de}
}
@article{MootzMerschenzQuack1987,
  author    = {Mootz, D. and Merschenz-Quack, Angelika},
  title     = {Zur Kenntnis der h{\"o}chsten Hydrate der Schwefels{\"a}ure: Bildung und Struktur von H2SO4·6,5 H2O und H2SO4·8H2O},
  series = {Zeitschrift f{\"u}r Naturforschung B: Journal of chemical sciences},
  volume    = {42},
  journal   = {Zeitschrift f{\"u}r Naturforschung B: Journal of chemical sciences},
  number    = {H. 10},
  issn      = {1865-7117 (E-Journal); 0932-0776 (Print)},
  pages     = {1231 -- 1236},
  year      = {1987},
  language  = {de}
}
@book{Feuerriegel1993,
  author    = {Feuerriegel, Uwe},
  title     = {Zur Desaktivierung eines Desaktivierung eines Palladium-Tr{\"a}gerkatalysators durch Schwefel¬wasserstoff bei der katalytischen Methanoxidation},
  publisher = {Univ.-Gesamthochsch.},
  address   = {Kassel},
  pages     = {128 S.: graph. Darst.},
  year      = {1993},
  language  = {de}
}
@article{ScheerWolf2013,
  author    = {Scheer, Nico and Wolf, C. Roland},
  title     = {Xenobiotic receptor humanized mice and their utility},
  series = {Drug Metabolism Reviews},
  journal   = {Drug Metabolism Reviews},
  number    = {1},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {1097-9883},
  doi       = {10.3109/03602532.2012.738687},
  pages     = {110 -- 121},
  year      = {2013},
  language  = {en}
}
@article{Mang1994,
  author    = {Mang, Thomas},
  title     = {W{\"a}ssrige Kunststoffdispersionen f{\"u}r Medizin und Biotechnologie},
  series = {Chemie und Technologie makromolekularer Stoffe. 15. Kolloquium: 25. November 1994 an der FH Aachen, Fachbereich Chemieingenieurwesen},
  journal   = {Chemie und Technologie makromolekularer Stoffe. 15. Kolloquium: 25. November 1994 an der FH Aachen, Fachbereich Chemieingenieurwesen},
  pages     = {155 -- 183},
  year      = {1994},
  language  = {de}
}
@article{BiselliNollWandrey1996,
  author    = {Biselli, Manfred and Noll, T. and Wandrey, C.},
  title     = {Wirbelschichtreaktor und Biomasse-Monitor : ein leistungsf{\"a}higes Fermenationssystem f{\"u}r S{\"a}ugerzellen / Noll, T. ; Biselli, M. ; Wandrey, C.},
  series = {Biospektrum. 2 (1996), H. 1},
  journal   = {Biospektrum. 2 (1996), H. 1},
  isbn      = {0947-0867},
  pages     = {65 -- 67},
  year      = {1996},
  language  = {de}
}
@article{Mang1998,
  author    = {Mang, Thomas},
  title     = {Wiederverwertung von Kunststoff-Verbundmaterial},
  series = {Chemie und Technologie makromolekularer Stoffe. 16. Kolloquium: 20. November 1998 an der FH Aachen, Fachbereich Chemieingenieurwesen},
  journal   = {Chemie und Technologie makromolekularer Stoffe. 16. Kolloquium: 20. November 1998 an der FH Aachen, Fachbereich Chemieingenieurwesen},
  publisher = {Fachhochschule Aachen},
  address   = {Aachen},
  pages     = {191 -- 213},
  year      = {1998},
  language  = {de}
}
@article{BlockMayWetzeletal.2023,
  author    = {Block, Franziska and May, Alexander and Wetzel, Katharina and Adels, Klaudia and Elbers, Gereon and Schulze, Margit and Monakhova, Yulia},
  title     = {What is the best spectroscopic method for simultaneous analysis of organic acids and (poly)saccharides in biological matrices: Example of Aloe vera extracts?},
  series = {Talanta Open},
  volume    = {7},
  journal   = {Talanta Open},
  number    = {Art. No. 100220},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2666-8319},
  doi       = {10.1016/j.talo.2023.100220},
  pages     = {1 -- 9},
  year      = {2023},
  abstract  = {Several species of (poly)saccharides and organic acids can be found often simultaneously in various biological matrices, e.g., fruits, plant materials, and biological fluids. The analysis of such matrices sometimes represents a challenging task. Using Aloe vera (A. vera) plant materials as an example, the performance of several spectro-scopic methods (80 MHz benchtop NMR, NIR, ATR-FTIR and UV-vis) for the simultaneous analysis of quality parameters of this plant material was compared. The determined parameters include (poly)saccharides such as aloverose, fructose and glucose as well as organic acids (malic, lactic, citric, isocitric, acetic, fumaric, benzoic and sorbic acids). 500 MHz NMR and high-performance liquid chromatography (HPLC) were used as the reference methods. UV-vis data can be used only for identification of added preservatives (benzoic and sorbic acids) and drying agent (maltodextrin) and semiquantitative analysis of malic acid. NIR and MIR spectroscopies combined with multivariate regression can deliver more informative overview of A. vera extracts being able to additionally quantify glucose, aloverose, citric, isocitric, malic, lactic acids and fructose. Low-field NMR measurements can be used for the quantification of aloverose, glucose, malic, lactic, acetic, and benzoic acids. The benchtop NMR method was successfully validated in terms of robustness, stability, precision, reproducibility and limit of detection (LOD) and quantification (LOQ), respectively. All spectroscopic techniques are useful for the screening of (poly)saccharides and organic acids in plant extracts and should be applied according to its availability as well as information and confidence required for the specific analytical goal. Benchtop NMR spectroscopy seems to be the most feasible solution for quality control of A. vera products.},
  language  = {en}
}