The microwave induced plasma MIP is a small low power plasma that is excellent for the analysis of halogens. The technique of MIP atomic emission spectrometry would be excellent for the speciation of halogens however due to the small size and low thermal temperature of the plasma (compared to its high excitation capability) it cannot be easily interfaced to liquid separation techniques such as HPLC or CE. This problem could be overcome by using lab on a chip technology for the separation as this provides rapid separation with nanolitre volumes of liquid.

The aim of this work is to investigate halogen species which are particularly sensitive in MIP atomic emission spectrometry

The first step is to develop the Interface between the µCE chip and the MIP, in doing this it is important to have an optimally designed micronebuliser. The liquid and gas flows then have to be optimised to obtain maximum sensitivity. Once this is achieved a suitable sample injection strategy is required to ensure good reproducibility. Then a high voltage can be applied across the chip to achieve separation of different species.

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