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  1. No Access

    Article

    Determination of an accurate depth distribution of sodium, calcium and aluminium in thin oxide layers using several methods

    Experience in obtaining accurate sodium, calcium and aluminium profiles in silicon dioxide using SIMS and Auger depth profiling is reported. With the knowledge of implantation energy and ion dose, it is possib...

    J. Albrecht, B. Koch, M. T. Pham in Fresenius' Journal of Analytical Chemistry (1993)

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    Article

    Electron spectroscopic investigation (AES/SAM, XPS) of electroplated Ag layers on LED-CuSn-lead frames: Combined phenomena of segregation and corrosion

    In order to improve LED fabrication processes inclusive handling in LED packaging and final tinning details of two interlinked phenomena were studied by the use of AES/SAM and XPS: Cu segregation during low-te...

    A. Hupfer, J. Albrecht, D. Dietrich in Fresenius' Journal of Analytical Chemistry (1991)

  3. No Access

    Article

    New aspects in HLA-ty** by use of monoclonal antibodies and calibrated flow cytofluorometry

    H. A. G. Müller, J. Albrecht, A. Schabel in Fresenius' Zeitschrift für analytische Chemie (1988)

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    Article

    Optimum sample size in gas chromatography

    In GC there is an optimum sample size giving the highest plate number. This is shown experimentally for preparative and normal GC columns and is probably also true for capillary column GC. Optimum sample size ...

    J. Albrecht, M. Verzele in Chromatographia (1971)

  5. No Access

    Article

    Über die Sensibilisierung von Polyvinylalkohol als Beschichtungsstoff für die Herstellung von Druckplatten

    Es wurde gefunden, daß Polyvinylalkohol mit hochmolekularen Diazoverbindungen sensibilisiert verwendet werden kann, und damit konnte ein technisch brauchbares Kopierverfahren für die Herstellung von Flachdruck...

    J. Albrecht in Kolloid-Zeitschrift (1943)