Wie lange gibt es noch Erdöl und Erdgas? – Reserven,Ressourcen und Reichweiten

Knowledge about the future availability of crude oil and other energy resources is crucial for politics, industry an even the consumer in the face of the drastically increased worldwide oil consumption up to more than 3, 8 Bill. t in 2004. Using oil as an example, reserves and resources, its dynamic, and the influence of non‐conventional oils (tar sands, extra heavy oil) are discussed with respect to future availability.     

Rapidanalyse; zeit- und material-sparende halbautomatische verdünnungsmethoden

Dilution methods based on the principle of the addition of variable volumes to a constant volume of liquid are described. They are fast, accurate and frequently half or completely automatic. They may be applied successfully to the preparation of diluted solutions, calibration of photometers, automatic dcproteinization of blood samples and even to the preparation of standard solutions. In the clinical field, with the help of these methods, most analyses can be performed by completely untrained personnel. The same advantages hold good for many technical determinations.