Solid-phase extraction followed by high-performance liquid chromatography with diode array detection for screening of dicamba herbicide in water
Конференцијски прилог (Објављена верзија)
Метаподаци
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Chlorinated acids are selective agricultural herbicides which are widely employed in agriculture and gardening for control the growth of different unwanted
vegetable species in crops. Because of high water solubility and toxicological risk
of some acid herbicides and their metabolic products, monitoring of their concentration in surface and groundwater is very important task. The acidic herbicides
are manufactured in formulation as free acids, as their alkaline salts or as esters.
The unionized free acids vary in water solubility (Table 1), but the acidic herbicides most frequently exist in ionized form at environmental pH values. Acidic
herbicides formulated as salts are water soluble, while those formulations prepared as esters are less water soluble. In the environment, acidic herbicides formulated as esters have short hydrolysis half-life time (24-48 h) and therefore they are
generally present as ionized acids. For most analytes, especially for the acidic herbicides, solid ph...ase extraction (SPE) is the choice of sample treatment, which is
followed by appropriate chromatographic separation and sensitive determination
of target components. For the acidic herbicides, combination of physico-chemical
parameters influences their extraction from aqueous solution. Ionogenicity (pKa)
and hydrophobicity (logkow) are especially important in determining the approach of SPE for efficient sample clean-up for further chromatographic analysis
of chlorophenoxy acid herbicide in water samples.
Кључне речи:
herbicides / water / extractionИзвор:
Knjiga izvoda, 6. Simpozijum „Hemija i zaštita životne sredine EnviroChem 2013“, Vršac, 2013, 386-387Колекције
Институција/група
FiVeRTY - CONF AU - Lazić, S. AU - Grahovac, Nada AU - Šunjka, D. AU - Guzsvány, V. AU - Jakšić, Snežana PY - 2013 UR - http://fiver.ifvcns.rs/handle/123456789/3700 AB - Chlorinated acids are selective agricultural herbicides which are widely employed in agriculture and gardening for control the growth of different unwanted vegetable species in crops. Because of high water solubility and toxicological risk of some acid herbicides and their metabolic products, monitoring of their concentration in surface and groundwater is very important task. The acidic herbicides are manufactured in formulation as free acids, as their alkaline salts or as esters. The unionized free acids vary in water solubility (Table 1), but the acidic herbicides most frequently exist in ionized form at environmental pH values. Acidic herbicides formulated as salts are water soluble, while those formulations prepared as esters are less water soluble. In the environment, acidic herbicides formulated as esters have short hydrolysis half-life time (24-48 h) and therefore they are generally present as ionized acids. For most analytes, especially for the acidic herbicides, solid phase extraction (SPE) is the choice of sample treatment, which is followed by appropriate chromatographic separation and sensitive determination of target components. For the acidic herbicides, combination of physico-chemical parameters influences their extraction from aqueous solution. Ionogenicity (pKa) and hydrophobicity (logkow) are especially important in determining the approach of SPE for efficient sample clean-up for further chromatographic analysis of chlorophenoxy acid herbicide in water samples. C3 - Knjiga izvoda, 6. Simpozijum „Hemija i zaštita životne sredine EnviroChem 2013“, Vršac T1 - Solid-phase extraction followed by high-performance liquid chromatography with diode array detection for screening of dicamba herbicide in water EP - 387 SP - 386 UR - https://hdl.handle.net/21.15107/rcub_fiver_3700 ER -
@conference{ author = "Lazić, S. and Grahovac, Nada and Šunjka, D. and Guzsvány, V. and Jakšić, Snežana", year = "2013", abstract = "Chlorinated acids are selective agricultural herbicides which are widely employed in agriculture and gardening for control the growth of different unwanted vegetable species in crops. Because of high water solubility and toxicological risk of some acid herbicides and their metabolic products, monitoring of their concentration in surface and groundwater is very important task. The acidic herbicides are manufactured in formulation as free acids, as their alkaline salts or as esters. The unionized free acids vary in water solubility (Table 1), but the acidic herbicides most frequently exist in ionized form at environmental pH values. Acidic herbicides formulated as salts are water soluble, while those formulations prepared as esters are less water soluble. In the environment, acidic herbicides formulated as esters have short hydrolysis half-life time (24-48 h) and therefore they are generally present as ionized acids. For most analytes, especially for the acidic herbicides, solid phase extraction (SPE) is the choice of sample treatment, which is followed by appropriate chromatographic separation and sensitive determination of target components. For the acidic herbicides, combination of physico-chemical parameters influences their extraction from aqueous solution. Ionogenicity (pKa) and hydrophobicity (logkow) are especially important in determining the approach of SPE for efficient sample clean-up for further chromatographic analysis of chlorophenoxy acid herbicide in water samples.", journal = "Knjiga izvoda, 6. Simpozijum „Hemija i zaštita životne sredine EnviroChem 2013“, Vršac", title = "Solid-phase extraction followed by high-performance liquid chromatography with diode array detection for screening of dicamba herbicide in water", pages = "387-386", url = "https://hdl.handle.net/21.15107/rcub_fiver_3700" }
Lazić, S., Grahovac, N., Šunjka, D., Guzsvány, V.,& Jakšić, S.. (2013). Solid-phase extraction followed by high-performance liquid chromatography with diode array detection for screening of dicamba herbicide in water. in Knjiga izvoda, 6. Simpozijum „Hemija i zaštita životne sredine EnviroChem 2013“, Vršac, 386-387. https://hdl.handle.net/21.15107/rcub_fiver_3700
Lazić S, Grahovac N, Šunjka D, Guzsvány V, Jakšić S. Solid-phase extraction followed by high-performance liquid chromatography with diode array detection for screening of dicamba herbicide in water. in Knjiga izvoda, 6. Simpozijum „Hemija i zaštita životne sredine EnviroChem 2013“, Vršac. 2013;:386-387. https://hdl.handle.net/21.15107/rcub_fiver_3700 .
Lazić, S., Grahovac, Nada, Šunjka, D., Guzsvány, V., Jakšić, Snežana, "Solid-phase extraction followed by high-performance liquid chromatography with diode array detection for screening of dicamba herbicide in water" in Knjiga izvoda, 6. Simpozijum „Hemija i zaštita životne sredine EnviroChem 2013“, Vršac (2013):386-387, https://hdl.handle.net/21.15107/rcub_fiver_3700 .