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Ulf Ritgen

    Elfenhügel. Roman
    Das Nimrod-Projekt. Roman. Deutsche Erstveröffentlichung
    Sphärenmusik. Roman
    Gezeitensturm. Roman. Deutsche Erstveröffentlichung
    Analytical Chemistry I
    Analytical Chemistry II
    • Analytical Chemistry II

      • 367pages
      • 13 heures de lecture

      Focused on advanced analytical chemistry, this workbook complements the Skoog/Holler/Crouch textbook, making it ideal for self-study. It covers key topics like mass spectrometry, nuclear magnetic resonance spectroscopy, and various electroanalytical methods, including potentiometry and voltammetry. Additionally, it explores specialized techniques such as radioactive substance analysis and fluorescence methods, while emphasizing the role of electrochemical and optical sensors. The course concludes with essential statistical principles relevant to analytics, supported by references and illustrations from the main textbook to aid independent learning.

      Analytical Chemistry II
    • This workbook takes you through the successful work Harris, Textbook of Quantitative Analysis and is designed primarily for self-study. In five parts, the lecture content of analytical chemistry is summarized and explained using selected examples. Basic concepts of analytical chemistry are presented as well as the principle and various techniques of dimensional analysis and chromatography. UV/VIS, infrared and Raman spectroscopy are used to explain the investigation of molecularly present compounds, and selected techniques of atomic spectroscopy conclude the introduction to the fundamentals of analysis. The textbook's essential sections and illustrations are repeatedly referred to, which facilitates independent learning of the fundamentals of analytical chemistry. Easy to read, the book introduces the fundamentals and key techniques of analytical chemistry; it is aimed at undergraduate students of chemistry or related science subjects. It repeatedly refersback to the basics familiar from courses in general chemistry, so that the connections between what is already known and what is new become immediately apparent. Learning with this workbook has been tested in a distance learning chemistry course and facilitates preparation for module examinations in analytical chemistry. This book is a translation of the original German 1 st edition Analytische Chemie I by Ulf Ritgen, published by Springer-Verlag GmbH Germany, part of Springer Nature in 2019. The translation was done with the help of artificial intelligence (machine translation by the service DeepL. com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors.

      Analytical Chemistry I
    • Der Gezeitensturm naht, während die Zwillingsplaneten Opal und Erdstoß ihrer Sonne näher kommen. Trotz des Einreiseverbots wagen einige Abenteurer den gefährlichen Weg nach Erdstoß, auf der Suche nach einer untergegangenen Zivilisation oder Verbrechern. Die Planetenverwalter Hans Rebka und May Perry müssen eingreifen.

      Gezeitensturm. Roman. Deutsche Erstveröffentlichung
    • Die Rubin-Dynastie, Erbherrscher des skolianischen Reiches, ist durch politische Intrigen getrennt. Im Schatten eines interstellaren Krieges versuchen sie, ihre Familie zusammenzuführen und ihre Position an der Spitze Skolias zurückzugewinnen, während viele Angehörige vermisst oder tot sind.

      Sphärenmusik. Roman
    • Im 23. Jahrhundert leben die Menschen friedlich in der Galaxis, doch ein gescheitertes Experiment hat ein gefährliches, bewaffnetes Wesen erschaffen. Ein Notfall-Team wird entsandt, um die Bedrohung auf einem unerforschten Planeten zu bekämpfen.

      Das Nimrod-Projekt. Roman. Deutsche Erstveröffentlichung
    • Phil Hastings führt ein glückliches Leben mit Erfolg und Familie, bis seine Söhne im Elfenhügel seltsame Geschöpfe entdecken. Ein harmloses Spiel wird ernst, als Hastings erkennt, dass seine Söhne vertauscht wurden.

      Elfenhügel. Roman
    • The Spheres of Heaven

      • 544pages
      • 20 heures de lecture
      3,5(130)Évaluer

      The story revolves around Chan Dalton, who is tasked by pacifist aliens to uncover the mystery behind their disappearing starships while Earth remains under quarantine. The aliens' strict policy against harming intelligent life complicates matters when Dalton encounters hostile invaders. Faced with a dire choice, he must decide whether to engage in battle, risking the loss of their star-faring future, or allow the enemy to threaten Earth’s existence.

      The Spheres of Heaven