The enantiomer-specific light-matter interaction is used directly for ionization, so that a separation of substance mixtures is no longer required. Hereby, circularly polarized femtosecond laser pulses are applied whose central wavelength is in the range of 200 nm to 1100 nm and whose bandwidth is very large. In the limit of a very broad white-light continuum, the fs laser pulse intrinsically contains the wavelengths which are suitable for the respective molecule. The chemical sample to be analyzed is ionized by means of this broad-band laser radiation and analyzed by mass spectrometry immediately afterwards. The chemical substance to be analyzed can be a single chemical substance or a mixture of several chemical substances, respectively, wherein any substance contained in the sample can be enantiomerically pure, or present in the form of an enantiomeric mixture.<p> The femtosecond laser pulse used in the device and the method according to the present invention ensures the intensity which is required for the ionization and fragmentation of the substances to be analyzed. During irradiation with the femtosecond laser pulse, it is constantly switching between RCPL and LPCL. i.e. between right-circularly and left-circularly polarized light, and the respective ion yield is measured.<p>
email@example.com | TechnologieAllianz e.V.
New Lithium Salts of Pentafluorophenylamide Anions as Electrolytes in Lithium Ionic Batteries
18.04.2017 | TechnologieAllianz e.V.
Gratings on glass surfaces
28.03.2017 | TechnologieAllianz e.V.
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
The quality of materials often depends on the manufacturing process. In casting and welding, for example, the rate at which melts solidify and the resulting microstructure of the alloy is important. With metallic foams as well, it depends on exactly how the foaming process takes place. To understand these processes fully requires fast sensing capability. The fastest 3D tomographic images to date have now been achieved at the BESSY II X-ray source operated by the Helmholtz-Zentrum Berlin.
Dr. Francisco Garcia-Moreno and his team have designed a turntable that rotates ultra-stably about its axis at a constant rotational speed. This really depends...
08.08.2018 | Event News
27.07.2018 | Event News
25.07.2018 | Event News
14.08.2018 | Life Sciences
14.08.2018 | Life Sciences
14.08.2018 | Earth Sciences