Fenola noteikšanas iespējas gaisā ar gāzu hromatogrāfijas metodi
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Latvijas Universitāte
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Abstract
Darbā tiek pārbaudīta fenola tvaika adsorbcija uz dažādiem sorbentiem (XAD-2, silikagels, aktīvā ogle), un uz dažādiem šķīdinātājiem (metanols, sērogleklis). Apstrādātos paraugus analizē ar gāzu hromatogrāfu izmantojot liesmas jonizācijas detektoru. No iegūtajām kalibrācijas grafika taisnēm aprēķina fenola tvaiku koncentrāciju eksikatora gaisā. Veic hromatogrāfisko analīzi un izvērtē, kurš no sorbentiem un šķīdinātājiem ir vispiemērotākais gaisa paraugu paņemšanai.
The present paper reviews adsorption of phenol vapour with a variety of sorbents (XAD-2, silicagel, activated coal) and various solvents (methanol, carbon disulfide). Processed samples were analysed with gas chromatograph along with the flame ionisation detector. The obtained straight lines of the calibration graph enabled the calculation of phenol vapour concentration in the air of desiccator. The chromatography analysis was conducted and an assessment was made as to which of the sorbents and solvents are the most suitable for the extraction of an air sample.
The present paper reviews adsorption of phenol vapour with a variety of sorbents (XAD-2, silicagel, activated coal) and various solvents (methanol, carbon disulfide). Processed samples were analysed with gas chromatograph along with the flame ionisation detector. The obtained straight lines of the calibration graph enabled the calculation of phenol vapour concentration in the air of desiccator. The chromatography analysis was conducted and an assessment was made as to which of the sorbents and solvents are the most suitable for the extraction of an air sample.