Experimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatography
Нема приказа
Аутори
Ignjatović, Ivana D. SredovićOnjia, Antonije E.
Ignjatović, Ljubiša M.
Todorović, Žaklina
Rajaković, Ljubinka V.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Determination of total halogens in coal was investigated with oxygen bomb combustion followed by ion chromatography. Experimental parameters were optimized by fractional factorial design and response surface methodology. Fractional factorial design was employed in screening experiments to evaluate the influence of the oxygen pressure, catalyst, absorption solution, reduction reagent, bomb cooling time, and a combustion aid on the combustion of coal in an oxygen bomb. Response surface methodology was conducted to further refine the results obtained by fractional factorial design and to define parameters for the procedure. The accuracy and precision of combustion with ion chromatography were evaluated by the use of two certified reference materials and by fortified in-house coal standards. The limits of detection and quantification for total halogens were 0.84 and 2.80 milligrams per kilogram, respectively, for 500 milligram samples. Ion chromatography provided relative standard deviatio...ns less than 4 percent, recoveries exceeding 95 percent, and was convenient. This method is recommended for routine determination of total halogens in coal because of its reliability.
Кључне речи:
Total coal halogens / Fractional factorial design / Ion chromatography / Combustion / Response surface methodologyИзвор:
Analytical Letters, 2015, 48, 16, 2597-2612Финансирање / пројекти:
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
DOI: 10.1080/00032719.2015.1041029
ISSN: 0003-2719; 1532-236X
WoS: 000360295100007
Scopus: 2-s2.0-84939218378
Колекције
Институција/група
VinčaTY - JOUR AU - Ignjatović, Ivana D. Sredović AU - Onjia, Antonije E. AU - Ignjatović, Ljubiša M. AU - Todorović, Žaklina AU - Rajaković, Ljubinka V. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/713 AB - Determination of total halogens in coal was investigated with oxygen bomb combustion followed by ion chromatography. Experimental parameters were optimized by fractional factorial design and response surface methodology. Fractional factorial design was employed in screening experiments to evaluate the influence of the oxygen pressure, catalyst, absorption solution, reduction reagent, bomb cooling time, and a combustion aid on the combustion of coal in an oxygen bomb. Response surface methodology was conducted to further refine the results obtained by fractional factorial design and to define parameters for the procedure. The accuracy and precision of combustion with ion chromatography were evaluated by the use of two certified reference materials and by fortified in-house coal standards. The limits of detection and quantification for total halogens were 0.84 and 2.80 milligrams per kilogram, respectively, for 500 milligram samples. Ion chromatography provided relative standard deviations less than 4 percent, recoveries exceeding 95 percent, and was convenient. This method is recommended for routine determination of total halogens in coal because of its reliability. T2 - Analytical Letters T1 - Experimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatography VL - 48 IS - 16 SP - 2597 EP - 2612 DO - 10.1080/00032719.2015.1041029 ER -
@article{ author = "Ignjatović, Ivana D. Sredović and Onjia, Antonije E. and Ignjatović, Ljubiša M. and Todorović, Žaklina and Rajaković, Ljubinka V.", year = "2015", abstract = "Determination of total halogens in coal was investigated with oxygen bomb combustion followed by ion chromatography. Experimental parameters were optimized by fractional factorial design and response surface methodology. Fractional factorial design was employed in screening experiments to evaluate the influence of the oxygen pressure, catalyst, absorption solution, reduction reagent, bomb cooling time, and a combustion aid on the combustion of coal in an oxygen bomb. Response surface methodology was conducted to further refine the results obtained by fractional factorial design and to define parameters for the procedure. The accuracy and precision of combustion with ion chromatography were evaluated by the use of two certified reference materials and by fortified in-house coal standards. The limits of detection and quantification for total halogens were 0.84 and 2.80 milligrams per kilogram, respectively, for 500 milligram samples. Ion chromatography provided relative standard deviations less than 4 percent, recoveries exceeding 95 percent, and was convenient. This method is recommended for routine determination of total halogens in coal because of its reliability.", journal = "Analytical Letters", title = "Experimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatography", volume = "48", number = "16", pages = "2597-2612", doi = "10.1080/00032719.2015.1041029" }
Ignjatović, I. D. S., Onjia, A. E., Ignjatović, L. M., Todorović, Ž.,& Rajaković, L. V.. (2015). Experimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatography. in Analytical Letters, 48(16), 2597-2612. https://doi.org/10.1080/00032719.2015.1041029
Ignjatović IDS, Onjia AE, Ignjatović LM, Todorović Ž, Rajaković LV. Experimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatography. in Analytical Letters. 2015;48(16):2597-2612. doi:10.1080/00032719.2015.1041029 .
Ignjatović, Ivana D. Sredović, Onjia, Antonije E., Ignjatović, Ljubiša M., Todorović, Žaklina, Rajaković, Ljubinka V., "Experimental Design Optimization of the Determination of Total Halogens in Coal by Combustion-Ion Chromatography" in Analytical Letters, 48, no. 16 (2015):2597-2612, https://doi.org/10.1080/00032719.2015.1041029 . .