http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102008048085-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_29c5d94f49a24f38a2b3585bfbc3b9d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-164 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-162 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-26 |
| filingDate | 2008-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b109628c36ae8faba19c87a9f6513a1e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83b7d1158ebd5ae1e166d792ef9ba786 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95821a2c2929784fee76adf8f75d76ae |
| publicationDate | 2010-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-102008048085-A1 |
| titleOfInvention | Differentiation of enantiomers using broadband femtosecond circular dichroism mass spectrometry |
| abstract | The present invention provides an apparatus and method for discriminating enantiomers using broadband femtosecond circular dichroism laser ionization mass spectrometry. In this case, an fs laser system is used whose laser pulse duration (τ) is less than or equal to 200 fs, based on a bandwidth-limited pulse, and whose central wavelength (λ) is in the range of 200 nm to 1100 nm. The spectral bandwidth of the laser pulses is selected from bandwidths less than or equal to 40 nm and greater than 40 nm. The laser pulses are circularly polarized, it being possible to switch between right-handed and left-handed circularly polarized light. The circularly polarized fs laser pulses are used directly for ionization, with the light-matter interaction being enantiomer-specific. As a result, no separation of mixtures of substances is required. The wavelength suitable for the ionization of a particular analyte need not be known in advance. For bandwidths less than or equal to 40 nm, the wavelength is varied to determine the appropriate wavelength. For bandwidths greater than 40 nm, the wavelength appropriate for the particular molecule is intrinsically contained in the spectrum. The sample to be examined and an achiral reference substance are simultaneously investigated in the time-of-flight mass spectrometer for both circular polarizations. For a given ionization wavelength and polarization of the laser pulse, each is in this way ... |
| priorityDate | 2008-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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