Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine
Determination of halogen-specific total organic halogen (TOX) is vital for studies of disinfection of waters containing bromide, since total organic bromine (TOBr) is likely to be more problematic than total organic chlorine. Here, we present further halogen-specific TOX method optimisation and vali...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/54504 |
| _version_ | 1848759388323446784 |
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| author | Langsa, M. Allard, S. Kristiana, I. Heitz, A. Joll, Cynthia |
| author_facet | Langsa, M. Allard, S. Kristiana, I. Heitz, A. Joll, Cynthia |
| author_sort | Langsa, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Determination of halogen-specific total organic halogen (TOX) is vital for studies of disinfection of waters containing bromide, since total organic bromine (TOBr) is likely to be more problematic than total organic chlorine. Here, we present further halogen-specific TOX method optimisation and validation, focusing on measurement of TOBr. The optimised halogen-specific TOX method was validated based on the recovery of model compounds covering different classes of disinfection by-products (haloacetic acids, haloacetonitriles, halophenols and halogenated benzenes) and the recovery of total bromine (mass balance of TOBr and bromide concentrations) during disinfection of waters containing dissolved organic matter and bromide. The validation of a halogen-specific TOX method based on the mass balance of total bromine has not previously been reported. Very good recoveries of organic halogen from all model compounds were obtained, indicating high or complete conversion of all organic halogen in the model compound solution through to halide in the absorber solution for ion chromatography analysis. The method was also successfully applied to monitor conversion of bromide to TOBr in a groundwater treatment plant. An excellent recovery (101%) of total bromine was observed from the raw water to the post-chlorination stage. Excellent recoveries of total bromine (92%–95%) were also obtained from chlorination of a synthetic water containing dissolved organic matter and bromide, demonstrating the validity of the halogen-specific TOX method for TOBr measurement. The halogen-specific TOX method is an important tool to monitor and better understand the formation of halogenated organic compounds, in particular brominated organic compounds, in drinking water systems. |
| first_indexed | 2025-11-14T09:59:05Z |
| format | Journal Article |
| id | curtin-20.500.11937-54504 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:59:05Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-545042019-07-02T03:48:39Z Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine Langsa, M. Allard, S. Kristiana, I. Heitz, A. Joll, Cynthia Determination of halogen-specific total organic halogen (TOX) is vital for studies of disinfection of waters containing bromide, since total organic bromine (TOBr) is likely to be more problematic than total organic chlorine. Here, we present further halogen-specific TOX method optimisation and validation, focusing on measurement of TOBr. The optimised halogen-specific TOX method was validated based on the recovery of model compounds covering different classes of disinfection by-products (haloacetic acids, haloacetonitriles, halophenols and halogenated benzenes) and the recovery of total bromine (mass balance of TOBr and bromide concentrations) during disinfection of waters containing dissolved organic matter and bromide. The validation of a halogen-specific TOX method based on the mass balance of total bromine has not previously been reported. Very good recoveries of organic halogen from all model compounds were obtained, indicating high or complete conversion of all organic halogen in the model compound solution through to halide in the absorber solution for ion chromatography analysis. The method was also successfully applied to monitor conversion of bromide to TOBr in a groundwater treatment plant. An excellent recovery (101%) of total bromine was observed from the raw water to the post-chlorination stage. Excellent recoveries of total bromine (92%–95%) were also obtained from chlorination of a synthetic water containing dissolved organic matter and bromide, demonstrating the validity of the halogen-specific TOX method for TOBr measurement. The halogen-specific TOX method is an important tool to monitor and better understand the formation of halogenated organic compounds, in particular brominated organic compounds, in drinking water systems. 2017 Journal Article http://hdl.handle.net/20.500.11937/54504 10.1016/j.jes.2017.06.010 fulltext |
| spellingShingle | Langsa, M. Allard, S. Kristiana, I. Heitz, A. Joll, Cynthia Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine |
| title | Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine |
| title_full | Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine |
| title_fullStr | Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine |
| title_full_unstemmed | Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine |
| title_short | Halogen-specific total organic halogen analysis: Assessment by recovery of total bromine |
| title_sort | halogen-specific total organic halogen analysis: assessment by recovery of total bromine |
| url | http://hdl.handle.net/20.500.11937/54504 |