Abstract
![CDATA[The preparation of alumina by dissolution of Bauxite in sodium hydroxide followed by precipitation, is the industrial process known as the Bayer process. Bayer humic material is that organic material in solution when crude Bauxite is dissolved. Although organics in Bayer liquors are normally monitored by gas chromatography, only small molecules (<1000 Daltons) can be analysed at the molecular level by this method. High performance liquid chromatography (HPLC) in principle could be developed to analyse larger molecules. However, attempts to separate Bayer humic substances using HPLC have been met with limited success [1] but we have shown how separation on the basis of molecular size followed by polarity has advantage [2]. The aim of this study was to use multidimensional HPLC to expand the peak capacity in chromatograms by spreading the spectrum over two dimensions and hence improve the separation.]]
| Original language | English |
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| Title of host publication | The Origin and Fate of Naturally Occurring Organic Matter : Combined National Conference of the Australian Organic Geochemists and the Natural Organic Matter Interest Group, 12-15 February 2006, Rottnest Island, Perth, Western Australia: Conference Program and Abstracts |
| Publisher | Curtin University of Technology |
| Number of pages | 2 |
| ISBN (Print) | 1740674545 |
| Publication status | Published - 2006 |
| Event | Combined National Conference of the Australian Organic Geochemists and the Natural Organic Matter Interest Group - Duration: 1 Jan 2006 → … |
Conference
| Conference | Combined National Conference of the Australian Organic Geochemists and the Natural Organic Matter Interest Group |
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| Period | 1/01/06 → … |
Keywords
- Bayer process
- humic substances
- liquid chromatography
- high performance liquid chromatography