Application and validation of ion chromatography for the analysis of power plants water: Analysis of corrosive anions in conditioned water-steam cycles
Abstract
In this study, the possibility of monitoring ion species that could cause corrosion processes in the thermal power plant (TPP) using suppressed ion chromatography (SIC) was investigated. An ion chromatography method for the determination of target anions at sub-to-low-pg/L levels in power plant water samples was developed. In this method, the water samples are injected using the large-loop direct injection technique, the analyte anions are separated and detected using the suppressed conductivity detection method. The validation of the analytical method was studied in terms of linearity, sensitivity, precision and accuracy. The method was linear (r gt 0.995) over the concentration working range. The detection limits were found to be 0.080, 0.160, 0.180, 0.230 and 0.200 mu g/L for F-, Cl-, NO3-, PO43- and SW, using Na2CO3/NaHCO3 as the eluent, and 0.077 and 0.082 mu g/L for F- and Cl- using NaOH as the eluent, respectively. The relative standard deviations (RSD) of the retention times an...d peak areas were less than 0.8 and 8%, respectively. The derived data showed that the average recoveries were generally in the range of 60-120%. The performance of the new method was evaluated by analyzing water-steam samples from the thermal power plant "Nikola Tesla", Serbia.
Keywords:
Trace anions / Corrosion / SIC / Water-steam cycle / Power plantSource:
Desalination, 2011, 275, 1-3, 17-25Publisher:
- Elsevier, Amsterdam
Funding / projects:
DOI: 10.1016/j.desal.2011.02.058
ISSN: 0011-9164
WoS: 000292584900003
Scopus: 2-s2.0-79958030025
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Živojinović, Dragana AU - Rajaković, Ljubinka V. PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1905 AB - In this study, the possibility of monitoring ion species that could cause corrosion processes in the thermal power plant (TPP) using suppressed ion chromatography (SIC) was investigated. An ion chromatography method for the determination of target anions at sub-to-low-pg/L levels in power plant water samples was developed. In this method, the water samples are injected using the large-loop direct injection technique, the analyte anions are separated and detected using the suppressed conductivity detection method. The validation of the analytical method was studied in terms of linearity, sensitivity, precision and accuracy. The method was linear (r gt 0.995) over the concentration working range. The detection limits were found to be 0.080, 0.160, 0.180, 0.230 and 0.200 mu g/L for F-, Cl-, NO3-, PO43- and SW, using Na2CO3/NaHCO3 as the eluent, and 0.077 and 0.082 mu g/L for F- and Cl- using NaOH as the eluent, respectively. The relative standard deviations (RSD) of the retention times and peak areas were less than 0.8 and 8%, respectively. The derived data showed that the average recoveries were generally in the range of 60-120%. The performance of the new method was evaluated by analyzing water-steam samples from the thermal power plant "Nikola Tesla", Serbia. PB - Elsevier, Amsterdam T2 - Desalination T1 - Application and validation of ion chromatography for the analysis of power plants water: Analysis of corrosive anions in conditioned water-steam cycles EP - 25 IS - 1-3 SP - 17 VL - 275 DO - 10.1016/j.desal.2011.02.058 ER -
@article{ author = "Živojinović, Dragana and Rajaković, Ljubinka V.", year = "2011", abstract = "In this study, the possibility of monitoring ion species that could cause corrosion processes in the thermal power plant (TPP) using suppressed ion chromatography (SIC) was investigated. An ion chromatography method for the determination of target anions at sub-to-low-pg/L levels in power plant water samples was developed. In this method, the water samples are injected using the large-loop direct injection technique, the analyte anions are separated and detected using the suppressed conductivity detection method. The validation of the analytical method was studied in terms of linearity, sensitivity, precision and accuracy. The method was linear (r gt 0.995) over the concentration working range. The detection limits were found to be 0.080, 0.160, 0.180, 0.230 and 0.200 mu g/L for F-, Cl-, NO3-, PO43- and SW, using Na2CO3/NaHCO3 as the eluent, and 0.077 and 0.082 mu g/L for F- and Cl- using NaOH as the eluent, respectively. The relative standard deviations (RSD) of the retention times and peak areas were less than 0.8 and 8%, respectively. The derived data showed that the average recoveries were generally in the range of 60-120%. The performance of the new method was evaluated by analyzing water-steam samples from the thermal power plant "Nikola Tesla", Serbia.", publisher = "Elsevier, Amsterdam", journal = "Desalination", title = "Application and validation of ion chromatography for the analysis of power plants water: Analysis of corrosive anions in conditioned water-steam cycles", pages = "25-17", number = "1-3", volume = "275", doi = "10.1016/j.desal.2011.02.058" }
Živojinović, D.,& Rajaković, L. V.. (2011). Application and validation of ion chromatography for the analysis of power plants water: Analysis of corrosive anions in conditioned water-steam cycles. in Desalination Elsevier, Amsterdam., 275(1-3), 17-25. https://doi.org/10.1016/j.desal.2011.02.058
Živojinović D, Rajaković LV. Application and validation of ion chromatography for the analysis of power plants water: Analysis of corrosive anions in conditioned water-steam cycles. in Desalination. 2011;275(1-3):17-25. doi:10.1016/j.desal.2011.02.058 .
Živojinović, Dragana, Rajaković, Ljubinka V., "Application and validation of ion chromatography for the analysis of power plants water: Analysis of corrosive anions in conditioned water-steam cycles" in Desalination, 275, no. 1-3 (2011):17-25, https://doi.org/10.1016/j.desal.2011.02.058 . .