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  1. No Access

    Article

    Evaluation of a new erosion score by musculoskeletal ultrasound in patients with rheumatoid arthritis

    The objectives of this study are to evaluate a new semi-quantitative (0–5) musculoskeletal ultrasound (US) erosion score in patients with rheumatoid arthritis (RA) and to prove its usefulness in the detection ...

    S. Ohrndorf, J. Messerschmidt, B. E. Reiche, G. R. Burmester in Clinical Rheumatology (2014)

  2. Article

    Open Access

    Oxaliplatin-DNA adduct formation in white blood cells of cancer patients

    In this study, we investigated the kinetics of oxaliplatin-DNA adduct formation in white blood cells of cancer patients in relation to efficacy as well as oxaliplatin-associated neurotoxicity. Thirty-seven pat...

    A C Pieck, A Drescher, K G Wiesmann, J Messerschmidt, G Weber in British Journal of Cancer (2008)

  3. No Access

    Chapter

    Palladium in Airborne Particulate Matter: Total Concentrations and Particle Size Distribution

    F Zereini, F Alt, J Messerschmidt, C Wiseman in Palladium Emissions in the Environment (2006)

  4. No Access

    Article

    Ultratrace voltammetric determination of DNA-bound platinum in patients after administration of oxaliplatin

    Oxaliplatin, a novel diaminocyclohexane-platinum complex, is used for the treatment of metastatic colorectal cancer. The amount of DNA-adduct formation of this drug in white blood cells of patients is determin...

    G. Weber, J. Messerschmidt, A. C. Pieck in Analytical and Bioanalytical Chemistry (2004)

  5. No Access

    Article

    Effect of extraction pH on metal speciation in plant root extracts

    The species patterns of nutrient and trace metals (K, Ca, Mg, Mn, Fe, Zn) obtained by extraction of plant roots have been determined as a function of extraction pH in the range 4–9. The extractable metal conc...

    G. Weber, J. Messerschmidt, A. von Bohlen in Fresenius' Journal of Analytical Chemistry (2001)

  6. No Access

    Article

    Total determination of metal-binding carbohydrates in plant extracts by using FIA with electrochemical detection

    FIA with pulsed amperometric detection (PAD) is used for the determination of metal-binding carbohydrates in plant extracts. Results of direct FIA measurements agree very well with those of corresponding HPLC...

    G. Weber, J. Messerschmidt in Fresenius' Journal of Analytical Chemistry (2000)

  7. No Access

    Chapter

    Determinants of the phytotoxicity of platinum

    Studies performed to demonstrate the phytotoxic potency of heavy metals are frequently carried out in nutrient solutions. Owing to their simple methodology, such experiments can serve only to provide an initia...

    H.-J. Ballach, F. Alt, J. Messerschmidt in Anthropogenic Platinum-Group Element Emiss… (2000)

  8. No Access

    Chapter

    Trennverfahren für Platin-Spezies

    Trennverfahren sind nicht nur für die Analytik von Platin-Spezies, sondern ganz allgemein für die Elementspeziesanalytik unverzichtbar. Das ergibt sich zum einen aus der hohen Komplexität umweltrelevanter oder...

    G. Weber, J. Messerschmidt in Emissionen von Platinmetallen (1999)

  9. No Access

    Article

    Characterization of low-molecular-weight metal species in plant extracts by using HPLC with pulsed amperometric detection and cyclic voltammetry

    An analytical separation scheme is presented for the isolation of low-molecular-weight metal species (< 10 kDa) in plants. After ultrafiltration of the aqueous plant extracts isotachophoresis or gel chromato...

    G. Weber, F. Alt, J. Messerschmidt in Fresenius' Journal of Analytical Chemistry (1998)

  10. No Access

    Article

    A contribution to the ecology and enology of platinum

     Since the introduction of the catalytic cleaning of vehicle exhaust gases, platinum is discussed as environmentally relevant element. Results of such investigations are compared with “natural” platinum backgr...

    F. Alt, H. R. Eschnauer, B. Mergler in Fresenius' Journal of Analytical Chemistry (1997)

  11. No Access

    Article

    Adsorptive voltammetric procedure for the determination of platinum baseline levels in human body fluids

    An extremly sensitive procedure for the determination of platinum in human body fluids is presented. A high pressure decomposition of the samples is followed by adsorptive voltammetric measurement. A detection...

    J. Messerschmidt, F. Alt, G. Tölg, J. Angerer in Fresenius' Journal of Analytical Chemistry (1992)

  12. No Access

    Article

    Ein Beitrag zur Önologie und Ökologie von Selen

    Little is known about selenium contents in alcoholic beverages, especially in wine, because no reliable determination method was available so far. A procedure for the detection of selenium in the pg- and low n...

    H. R. Eschnauer, F. Alt, J. Messerschmidt in Fresenius' Zeitschrift für analytische Che… (1989)

  13. No Access

    Chapter and Conference Paper

    Anwendungen und Portierungen der Programmiersprache Comskee

    Comskee ist eine in der ALGOL-Pascal-Tradition stehende Programmiersprache mit zahlreichen Kontrollstrukturen. Das Besondere an der Sprache sind die an der Sprachverarbeitung orientierten Datentypen. Eine beso...

    G. Hotz, T. Burch, W. Dorndorf, J. Messerschmidt in Innovative Informations-Infrastrukturen (1988)

  14. No Access

    Article

    A contribution towards the improvement of Se-determination in the pg-region by hydride AAS

    In order to increase the sensitivity of Se-determination by hydride-AAS in the pg-range, an arrangement was developed which permits simple handling and is suitable for routine analysis. As an example, the dete...

    F. Alt, J. Messerschmidt, G. Tölg in Fresenius' Zeitschrift für analytische Chemie (1987)

  15. No Access

    Article

    Verbundverfahren zur Bestimmung der Bindungspartner von Elementspuren in Humanserum am Beispiel des Selens

    F. Alt, J. Messerschmidt, G. Tölg, G. Kaiser in Fresenius' Zeitschrift für analytische Che… (1984)

  16. No Access

    Article

    Elektrisch geheizte Wolframschlaufe zur Probenvorbereitung, zum Probeneintrag und als „Plattform“ in der Ofen-AAS

    The sample to be analyzed is brought with a microlitre pipette onto an electrically heated tungsten loop situated outside the graphite tube, where the solvent is vaporized; subsequently, the loop is brought in...

    H. Berndt, J. Messerschmidt in Fresenius' Zeitschrift für analytische Chemie (1983)

  17. No Access

    Article

    Schlaufenmethode der AAS/AES zur Elementanalytik in biologischen Materialien — Eine neue Möglichkeit zur Mikro- und Spurenanalyse

    H. Berndt, J. Messerschmidt in Fresenius' Zeitschrift für analytische Chemie (1982)

  18. No Access

    Article

    DithiophosphorsÄure-O,O-diethylester zur Spurenanreicherung an Aktivkohle

    Traces of Bi, Cd, Cu, In and Tl can be separated from high-purity iron, chromium and manganese by sorption of their dithiophosphoric-acid-O,O-diethylester complexes onto activated carbon as trace collector. Th...

    H. Berndt, J. Messerschmidt, E. Reiter in Fresenius' Zeitschrift für analytische Chemie (1982)

  19. No Access

    Article

    Thalliumbestimmung in mineralischen Stoffen und in Kohle mit der AAS (Injektionsmethode, Platin-Schlaufen-Methode, Graphitrohrküvette) und der ICP-AES

    A procedure is described for the determination of Tl in mineral materials and coal after preconcentration. After dissolution of the sample, the Tl is complexed with dithio-phosphorus acid-O,O-diethylester, amm...

    H. Berndt, J. Messerschmidt, F. Alt in Fresenius' Zeitschrift für analytische Che… (1981)

  20. No Access

    Article

    Dithiophosphorsäure-O,O-diethylester zur Spurenanreicherung an Aktivkohle

    The chelate complexing agent dithiophosphoric acid-O,O-diethylester, suitable for extraction from high acidity media, can also be put to use in trace sorption on activated carbon. Due to different sorption beh...

    H. Berndt, J. Messerschmidt in Fresenius' Zeitschrift für analytische Chemie (1981)

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