http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114720579-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eac9dad2a1ca771d56fdd6b711e4d941 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-167 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-047 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-8675 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-16 |
| filingDate | 2021-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed71e4c8741e1ce7b924e2145c6041ab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71fc6ffbdab7e5d62825b37a59e180d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88d421c4a704e9df627f0ae5539a4c22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a42a489e11979adae90a1f4c54353599 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2cc693e457eac5da054c6ece5278265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef206faf7d217a288f754a1702153238 |
| publicationDate | 2022-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114720579-A |
| titleOfInvention | Detection method of petroleum hydrocarbons (C6-C9) in soil by headspace-gas chromatography |
| abstract | The invention discloses a method for detecting petroleum hydrocarbons (C6-C9) in soil by headspace-gas chromatography, comprising the following steps: A. Sampling: collecting and preserving soil samples according to the relevant requirements of volatile organic compounds in HJ/T166. Collect 2 parallel samples, put them into sampling bottles, and the sample storage area should be free of organic interference; B. Preparation: Weigh 5g of samples (accurate to 0.01g) into a headspace bottle containing 2g of sodium chloride, and quickly add 5mL of water , close the bottle cap, shake well, and test; C. Standard curve preparation: Accurately draw 100 μL of petroleum hydrocarbon C6-C9 standard working solution with a concentration of 1000 mg/L and dilute to 1 mL with methanol, dilute step by step, and quickly pipette an appropriate amount The standard working solution was put into a headspace bottle corresponding to 5mL of water and 2g of sodium chloride to obtain the following concentration curve points: 0.0ug, 0.5ug, 1.0ug, 5.0ug, 10.0ug, 30.0ug; the petroleum hydrocarbons in the soil (C6- C9) The headspace-gas chromatography detection method has the advantages of simple steps, shortened inspection time and good reproducibility of results. |
| priorityDate | 2021-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.