High-speed automated atomic absorption spectrophotometry.
We describe an integrated automated system for the atomic absorption spectrophotometer. The system makes use of a light-dependent resistor to detect the presence of a marker ion which is present along with the sample ion in the flame. An electronic circuit has been developed which enables the marker ion to trigger the read signal of the spectrophotometer. The system has been tested by determining magnesium and calcium in serum. Alternative modes of operation and different potential applications are discussed.
D002118:Calcium / Q000097:blood; D004581:Electronics; D006801:Humans; D008274:Magnesium / Q000097:blood; D013054:Spectrophotometry, Atomic / Q000295:instrumentation* / Q000379:methods
D008274:Magnesium; D002118:Calcium