With peak shape calibration performed with As standard, symmetrical and mathematical well defined peak shape can be obtained for all ICP-MS spectra for the mixtures of As spiked with [Cl~(-)] and allows accurate spectral deconvolution and quantitation of the mixtures. Low concentration samples at 1 ppt levels showed significant signal variation due to their poor S/N ratio. Their S/N ratio can be improved by decreasing scan range from 0-260 to 70-80 for As related deconvolution. Current version of MassWorks can perform three components mixture analysis. In a future release, multiple components, virtually unlimited components can be performed with the spectral deconvulotion.
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