Abstract
An inexpensive, multi-element, W-coil atomic absorption spectrometer has been developed. Atomization occurs on W-coils extracted from commercially available slide projector bulbs. The system has minimal power requirements, 120 ACV and 15 A. A small, computer controlled CCD spectrometer is used as the detector. A multi-element Cu, Cd and Pb hollow cathode lamp is used as the source. 20 μl volumes are deposited on the coil and atomized at 6.7 A or approximately 2200°C. Cu, Cd and Pb were simultaneously determined in tap water, drinking water and a quality control sample. The instrument detection limits are 0.8, 0.2 and 3.0 μg/l for Cu, Cd and Pb, respectively.
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