Other

Lehmann&voss&co. Kg

Kratos Analytical Limited

Hans Willi Kling

Michaela Wirtz

Volker Wulf

Dalibor Vukadinovic-tenter

David Melchior

Karsten Lange

Siegmar Gäb

Oliver J Schmitz

Lukas Hyzak

Susanne Dankert

The present application relates to citric acid-modified polypropylene glycols which are represented by Formula (1) or, as well as compositions comprising such compounds. The polypropylene glycol-based compounds of the invention are useful as additives and in particular as emulsifying agents in e.g. cooling lubricants, as release agents, as well as additives for cosmetic products.

Citric acid-modified polypropylene glycols

The present invention is concerned with a method of preparing a MALDI sample, the method comprising the steps of: (a) mixing a solid sample precursor comprising sample and matrix to form a solid sample mixture; (b) applying the solid sample mixture to a sample cavity of a MALDI target; and (c) compressing the solid sample mixture in the sample cavity so as to form a MALDI sample surface for laser desorption. The present invention also provides a MALDI target comprising a sample cavity for receiving a MALDI sample, the sample cavity having (a) a desorption end portion comprising an aperture, such that a portion of the MALDI sample exposed at the aperture is in use subjected to laser desorption; and wherein the sample cavity also has (b) a compression end portion adapted to permit compression of a solid sample mixture towards the desorption end portion in the sample cavity by applying a compression force to the solid sample mixture via the compression end portion.

MALDI sample preparation methods and targets

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Wuppertal, Germany

Hans Willi Kling