http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0323284-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8db829a4645bcff6360dae191b722ff |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-022 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-02 |
| filingDate | 1988-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db9f335fd556f4dcd644735180bbc680 |
| publicationDate | 1989-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0323284-A1 |
| titleOfInvention | Method for detecting a chemical substance of known mass M |
| abstract | Method for detecting a chemical body of known mass M, using an apparatus comprising an ion source (1) producing ions of the body of mass M from a gaseous atmosphere to be analyzed; a dissociation box (3) in which the ions of the body of mass M dissociate into fragments of known masses m₁, m₂, ... m p , characteristics of the body of mass M to be identified; an electrostatic analyzer (4) filtering the energy ions W; a magnetic analyzer (5) operating with an induction B o in its air gap, characterized in that: - the value B o is fixed by choosing values V o , W o for V and W such that a mass atom M o crosses the apparatus, which is done in known manner when the equations in which R is the radius of curvature of the path of the ion in the magnetic analyzer, are satisfied, - to then search for the presence in the atmosphere to be analyzed of the known body of mass M, capable of dissociating into known fragments of masses m₁ = x₁M, m₂ = x₂M, ... m p = x p M, we calibrate the apparatus for the specific search for mass M by giving V o and W o new values V ′ and W ′ such as: V′M = V o M o and W ′ = eV ′, then sequentially searching for the different fragments m p making each time V p = (V ′ / x 2 p ) and W p = (W ′ / x p ) which authorizes the mass ion m p to pass through the whole apparatus and to be highlighted by the ion detector, - we deduce the effective presence of the mass body M. |
| priorityDate | 1987-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.