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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tyrrell, Eadaoin Shellie, Robert A. Haddad, Paul R. Hilder, Emily F. Pohl, Christopher A. Dicinoski, Greg W. Breadmore, Michael C. |
| Description | Country affiliation: Australia Author Affiliation: Tyrrell E ( Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Hobart, TAS 7001, Australia.) |
| Abstract | There are many methods available to detect and positively identify either organic or inorganic explosives separately, however no one method has been developed which can detect both types of explosive species simultaneously from a single sample. In this work, a unique coupled-chromatographic system is reported for the simultaneous determination of both organic and inorganic explosive species and is used for pre-blast analysis/identification purposes. This novel approach is based on the combination of reversed-phase high performance liquid chromatography and ion chromatography which allows trace levels of organic and inorganic explosives to be determined simultaneously from a single sample. Using this procedure, a 20 min reversed-phase separation of organic explosives is coupled to a 16 min ion-exchange separation of anions present in inorganic explosives, providing a complete pre-blast analysis/identification system for the separation and detection of a complex mixture containing organic and/or inorganic explosive species. The total analysis time, including sufficient column re-equilibration between runs, was <25 min using the coupled system. By this method, the minimum resolution for the organic separation was 1.16 between nitroglycerin and tetryl and the detection limits ranged from 0.31 mg L(-1) for cyclotetramethylene tetranitramine (HMX) and 1.54 mg L(-1) for pentaerythrite tetranitrate (PETN), while the minimum resolution for the inorganic separation was 0.99 between azide and nitrate, and the detection limits ranged from 7.70 µg L(-1) for fluoride and 159.50 µg L(-1) for benzoate. |
| ISSN | 00219673 |
| Issue Number | 20 |
| Volume Number | 1218 |
| e-ISSN | 18733778 |
| Journal | Journal of Chromatography A |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-05-20 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chromatography, Ion Exchange Methods Chromatography, Reverse-phase Explosive Agents Analysis Inorganic Chemicals Organic Chemicals Isolation & Purification Reproducibility Of Results Sensitivity And Specificity Terrorism Journal Article Research Support, Non-u.s. Gov't Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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