http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105116091-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-88 |
| filingDate | 2015-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105116091-B |
| titleOfInvention | Method for measuring dibromochloropropane residues in fruits and vegetables by GC-NCI-MS |
| abstract | The invention discloses a method for measuring dibromochloropropane residues in fruits and vegetables by GC-NCI-MS. The method comprises the following steps: extraction, purification, preparation of a standard working solution and measurement by gas chromatography-negative chemical ionization-mass spectrometry, and combination of a dispersion solid phase extraction pretreatment technology and a GC-NCI-MS detection technology. The method is quick, simple and convenient; by virtue of utilizing acetic acid or acetonitrile as a solvent, the toxicity is low; the detection limit is as low as 0.75ug/kg, so the sensitivity is high; the recycling rate is 97.40-103.69 percent, so the selectivity is high; the RSD value is 3.02-5.74 percent, so the repetitiveness is high; interference of a matrix is effectively removed, and the method is suitable for detecting dibromochloropropane in various vegetables and fruits and products thereof; meanwhile, methylbenzene is added in the purification step of the dispersion solid phase extraction pretreatment technology, so that adsorption of purification powder PSA to a target is effectively reduced; in the same matrix, the recycling rate of the method is increased from 69.25-75.37 percent without methylbenzene to 97.96-10.3.69 percent. |
| priorityDate | 2015-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.