METAL SPECIATION BY MEANS OF MICROBORE COLUMNS WITH DIRECT-INJECTION NEBULIZATION BY INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION-SPECTROSCOPY

Ion chromatography can be used to perform speciation of several elemen ts. This paper examines the use of ion chromatography with inductively coupled plasma atomic emission spectroscopy detection. A new type of nebulizer, the direct-injection nebulizer, was used to introduce the s ample into the plasma. Columns were developed to interface with the di rect-injection nebulizer at a flow-rate of 80-100 mul/min. The speciat ion of arsenic, selenium and chromium is discussed.