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| Description
| - Volatile organic compounds (VOC) occur in traces in atmosphere and even in trace levels, these compounds pose serious health hazard. Sample stability, recovery, effect of temperature and moisture management are a few critical points taken into consideration while sampling and analysis of polar and non polar VOCs. In the presnet work, stability study was carried out for polar and non polar VOCs in SUMMA stainless steel canister. Compounds recoveries were assended in dry and humid canisters. Canister samples were prepared with 0,25,50 and 100 % humidity. Moreover, the study with each humidity level was performed with two different concentrations (approx 50 &500 qgm3) of each compound to evaluate the influence of lower/higher concetration. Before starting experiment, various parametres used for the measurement of VOCs from canister system were optimized and method detection limit was calculated as the accuracy of analytical measurement is the key part of stability study. Polar compounds like alcohols were poorly recovered from dry canisters. Sulphur and chloro compounds were recovered in the rande of 12-68% over one month period. Aromatic and aliphatic hydrocarbons appeared to be unaffected. In presence of humidity in canister, alcohols showed better recovery but recovery was sometime irregular especially if they are in low concentration. Recovery of suplfur compounds improved significantly in presence of humidity while chloro compounds were recovered about 60-70% even if humidity is there. Overall, humidity is proved to be essential for the recovery of alcohols, sulfur and chloro compounds and 50% humidity was the best suitable humidity. Nonpolar compounds remained unaffected irrespective of humidity level.
- Volatile organic compounds (VOC) occur in traces in atmosphere and even in trace levels, these compounds pose serious health hazard. Sample stability, recovery, effect of temperature and moisture management are a few critical points taken into consideration while sampling and analysis of polar and non polar VOCs. In the presnet work, stability study was carried out for polar and non polar VOCs in SUMMA stainless steel canister. Compounds recoveries were assended in dry and humid canisters. Canister samples were prepared with 0,25,50 and 100 % humidity. Moreover, the study with each humidity level was performed with two different concentrations (approx 50 &500 qgm3) of each compound to evaluate the influence of lower/higher concetration. Before starting experiment, various parametres used for the measurement of VOCs from canister system were optimized and method detection limit was calculated as the accuracy of analytical measurement is the key part of stability study. Polar compounds like alcohols were poorly recovered from dry canisters. Sulphur and chloro compounds were recovered in the rande of 12-68% over one month period. Aromatic and aliphatic hydrocarbons appeared to be unaffected. In presence of humidity in canister, alcohols showed better recovery but recovery was sometime irregular especially if they are in low concentration. Recovery of suplfur compounds improved significantly in presence of humidity while chloro compounds were recovered about 60-70% even if humidity is there. Overall, humidity is proved to be essential for the recovery of alcohols, sulfur and chloro compounds and 50% humidity was the best suitable humidity. Nonpolar compounds remained unaffected irrespective of humidity level. (en)
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| Title
| - Evaluation of stability of volatile organic compounds in SUMMA canisters at different humidity levels
- Evaluation of stability of volatile organic compounds in SUMMA canisters at different humidity levels (en)
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| skos:prefLabel
| - Evaluation of stability of volatile organic compounds in SUMMA canisters at different humidity levels
- Evaluation of stability of volatile organic compounds in SUMMA canisters at different humidity levels (en)
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| skos:notation
| - RIV/60461373:22320/12:43893292!RIV13-MSM-22320___
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22320/12:43893292
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Sample Stability; mass Spectrometry; Gas Chromatography; Canister; VOCs (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Research in Enviroment and Life Sciences
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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