Supercritical extraction of organochlorine pesticides from water
Superkritična ekstrakcija organohlornih pesticida iz vode
Апстракт
Recoveries of solid phase disk extraction and supercritical fluid extraction of natural groundwater samples were compared in this study. Deionised water sample (1 dm3) was spiked with a mix of lindan (g-HCH) and its metabolites (a-HCH, b-HCH, d-HCH) at level of 2.25 ng l-1 of each component. Extraction of spiked groundwater was performed by C-18 solid phase disks. Captured analytes were eluted from the disk in two different ways: 1) eluate obtained by the use of a solvent was evaporated to dryness and then again dissolved in acetone and 2) elution with supercritical fluid (CO2). Extracts were analysed by GC-ECD and an internal standard. Recoveries of extracts achieved with supercritical elution were much better than those with classical elution with a solvent.
U ovom radu su upoređeni prinosi čvrsto fazne ekstrakcije i superkritične ekstrakcije pesticida iz vode. U 1 dm3 dejonizovane vode dodata je mešavina lindana i njegovih metabolita u koncentraciji od 2,25 ng/dm3 za svaki analit. Ekstrakcija vode je izvedena upotrebom C-18 ekstrakcionih diskova. Analiti su sa diska eluirani na dva načina: 1) eluat dobijen upotrebom rastvarača uparen je do suva i ponovo rastvoren u acetonu, i 2) elucija sa superkritičnim fluidom (CO2). Dobijeni ekstrakti su analizirani upotrebom GC-ECD i internog standarda. Prinosi dobijeni superkritičnom ekstrakcijom su značajno viši od prinosa dobijenih eluiranjem analita pomoću rastvarača.
Кључне речи:
čvrsto fazna ekstrakcija / lindan / ostaci / pesticidi / podzemna voda superkritična ekstrakcijaИзвор:
Journal of Scientific Agricultural Research, 2003, 64, 3-4, 187-192Издавач:
- Savez poljoprivrednih inženjera i tehničara, Beograd
Колекције
Институција/група
FiVeRTY - JOUR AU - Pucarević, Mira AU - Ralev, Jordana AU - Zeremski-Škorić, Tijana PY - 2003 UR - http://fiver.ifvcns.rs/handle/123456789/183 AB - Recoveries of solid phase disk extraction and supercritical fluid extraction of natural groundwater samples were compared in this study. Deionised water sample (1 dm3) was spiked with a mix of lindan (g-HCH) and its metabolites (a-HCH, b-HCH, d-HCH) at level of 2.25 ng l-1 of each component. Extraction of spiked groundwater was performed by C-18 solid phase disks. Captured analytes were eluted from the disk in two different ways: 1) eluate obtained by the use of a solvent was evaporated to dryness and then again dissolved in acetone and 2) elution with supercritical fluid (CO2). Extracts were analysed by GC-ECD and an internal standard. Recoveries of extracts achieved with supercritical elution were much better than those with classical elution with a solvent. AB - U ovom radu su upoređeni prinosi čvrsto fazne ekstrakcije i superkritične ekstrakcije pesticida iz vode. U 1 dm3 dejonizovane vode dodata je mešavina lindana i njegovih metabolita u koncentraciji od 2,25 ng/dm3 za svaki analit. Ekstrakcija vode je izvedena upotrebom C-18 ekstrakcionih diskova. Analiti su sa diska eluirani na dva načina: 1) eluat dobijen upotrebom rastvarača uparen je do suva i ponovo rastvoren u acetonu, i 2) elucija sa superkritičnim fluidom (CO2). Dobijeni ekstrakti su analizirani upotrebom GC-ECD i internog standarda. Prinosi dobijeni superkritičnom ekstrakcijom su značajno viši od prinosa dobijenih eluiranjem analita pomoću rastvarača. PB - Savez poljoprivrednih inženjera i tehničara, Beograd T2 - Journal of Scientific Agricultural Research T1 - Supercritical extraction of organochlorine pesticides from water T1 - Superkritična ekstrakcija organohlornih pesticida iz vode EP - 192 IS - 3-4 SP - 187 VL - 64 UR - https://hdl.handle.net/21.15107/rcub_fiver_183 ER -
@article{ author = "Pucarević, Mira and Ralev, Jordana and Zeremski-Škorić, Tijana", year = "2003", abstract = "Recoveries of solid phase disk extraction and supercritical fluid extraction of natural groundwater samples were compared in this study. Deionised water sample (1 dm3) was spiked with a mix of lindan (g-HCH) and its metabolites (a-HCH, b-HCH, d-HCH) at level of 2.25 ng l-1 of each component. Extraction of spiked groundwater was performed by C-18 solid phase disks. Captured analytes were eluted from the disk in two different ways: 1) eluate obtained by the use of a solvent was evaporated to dryness and then again dissolved in acetone and 2) elution with supercritical fluid (CO2). Extracts were analysed by GC-ECD and an internal standard. Recoveries of extracts achieved with supercritical elution were much better than those with classical elution with a solvent., U ovom radu su upoređeni prinosi čvrsto fazne ekstrakcije i superkritične ekstrakcije pesticida iz vode. U 1 dm3 dejonizovane vode dodata je mešavina lindana i njegovih metabolita u koncentraciji od 2,25 ng/dm3 za svaki analit. Ekstrakcija vode je izvedena upotrebom C-18 ekstrakcionih diskova. Analiti su sa diska eluirani na dva načina: 1) eluat dobijen upotrebom rastvarača uparen je do suva i ponovo rastvoren u acetonu, i 2) elucija sa superkritičnim fluidom (CO2). Dobijeni ekstrakti su analizirani upotrebom GC-ECD i internog standarda. Prinosi dobijeni superkritičnom ekstrakcijom su značajno viši od prinosa dobijenih eluiranjem analita pomoću rastvarača.", publisher = "Savez poljoprivrednih inženjera i tehničara, Beograd", journal = "Journal of Scientific Agricultural Research", title = "Supercritical extraction of organochlorine pesticides from water, Superkritična ekstrakcija organohlornih pesticida iz vode", pages = "192-187", number = "3-4", volume = "64", url = "https://hdl.handle.net/21.15107/rcub_fiver_183" }
Pucarević, M., Ralev, J.,& Zeremski-Škorić, T.. (2003). Supercritical extraction of organochlorine pesticides from water. in Journal of Scientific Agricultural Research Savez poljoprivrednih inženjera i tehničara, Beograd., 64(3-4), 187-192. https://hdl.handle.net/21.15107/rcub_fiver_183
Pucarević M, Ralev J, Zeremski-Škorić T. Supercritical extraction of organochlorine pesticides from water. in Journal of Scientific Agricultural Research. 2003;64(3-4):187-192. https://hdl.handle.net/21.15107/rcub_fiver_183 .
Pucarević, Mira, Ralev, Jordana, Zeremski-Škorić, Tijana, "Supercritical extraction of organochlorine pesticides from water" in Journal of Scientific Agricultural Research, 64, no. 3-4 (2003):187-192, https://hdl.handle.net/21.15107/rcub_fiver_183 .