| Autor: |
Rodinkov, O. V., Moskvin, L. N., Vlasov, A. Yu |
| Předmět: |
|
| Zdroj: |
International Journal of Environmental Analytical Chemistry; May2024, Vol. 104 Issue 6, p1234-1242, 9p |
| Abstrakt: |
We report on a novel modus operandi in the gas-chromatographic determination of ultra small contents (from 20 ng/l) of acetylene dissolved in water by employing a flame-ionisation detector with hydrogen as a carrier gas. The method bases on the gas extraction of acetylene with a frontal variant of liquid-gas chromatography in a tube with fluro-plastic carrier and simultaneous catalytic hydrogenation of acetylene to produce ethane in the presence of platinum deposited on the sorbent surface. The method in view gives way to a 20-fold decrease in the detection limit of acetylene against extraction with no hydrogenation. A plausible application of the method is the assessment of anthropogenic impact on the environmental hydrosphere embarking from the concentration of dissolved acetylene. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
