FIELD: chemistry.
SUBSTANCE: invention relates to a cartridge for passive adsorption of hydrocarbons and can be used for adsorption of hydrocarbons from a gas-air mixture of soil with subsequent determination of their mass concentration by chromatography-mass spectrometry. Cartridge comprises housing from metal mesh and sorbent. During cartridge adsorption is arranged in membrane jacket. Sorbent used is a complex adsorbent consisting of silica gel KSK, Tenax-TA and modified activated carbon in the following ratio, wt. %: 0.5:2:1. Activated carbon modified with monolayer of 5-hydroxy-6-methyluracil can be used as modified activated carbon. Membrane cover can contain three cells, in each of which there is one cartridge with a complex adsorbent. Moisture-transmissive material can be used as the membrane.
EFFECT: providing passive adsorption of hydrocarbons, which enables to identify a wide range of hydrocarbons, tightly transport the cartridge and avoid ingress of moisture and various impurities on the sorbent.
4 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GAS CHROMATOGRAPHIC METHOD OF DETERMINING MASS CONCENTRATION OF IMPURITIES IN NATURAL GAS | 2007 |
|
RU2361200C1 |
| MULTILAYER SORPTION TUBE AND ITS APPLICATION | 2016 |
|
RU2745392C2 |
| METHOD FOR DETERMINING FURAN AND METHYLFURAN IN ATMOSPHERIC AIR BY CAPILLARY GAS CHROMATOGRAPHY WITH A MASS SELECTIVE DETECTOR USING THE LOW-TEMPERATURE CONCENTRATION METHOD | 2022 |
|
RU2789634C1 |
| SAMPLE PREPARATION METHOD FOR WATER BODIES FOR DETERMINING HYDROCARBON IMPURITIES | 2013 |
|
RU2547884C2 |
| METHOD OF INDICATING AND QUANTITATIVELY DETERMINING CHLORINE IN AIR | 1995 |
|
RU2106618C1 |
| METHOD FOR SOLID-PHASE CONCENTRATION OF A COMBINATION OF WATER-SOLUBLE VOLATILE AND NON-VOLATILE FORMATION INDICATORS | 2019 |
|
RU2720656C1 |
| DEVICE TO SAMPLE GAS MEDIUM FOR SORBENT AND METHOD TO PREPARE IT FOR OPERATION IN COMPARTMENT OF MANNED SPACECRAFT | 2010 |
|
RU2420723C1 |
| METHOD OF INDICATION AND QUANTITATIVE DETERMINATION OF AMMONIA VAPORS IN AIR | 1995 |
|
RU2105289C1 |
| METHOD FOR PRODUCING CARBON ADSORBENT MODIFIED WITH FULLERENE | 2021 |
|
RU2776929C1 |
| PASSIVE SAMPLING DEVICE | 2003 |
|
RU2244914C2 |
