AN ATOMIC ABSORPTION SPECTROPHOTOMETER
A double-beam, single-detector, time-sharing spectrophotometer was designed with optimum parameters for the atomic absorption technique. The monochromator is a dualgrating, high-dispersion, Ebert--Fastie type. The major requirements of an atomic absorption spectrophotometer are stability, a wide range of slit-widths, and minimum sensitivity to emission from the flame. Many of the traditional requirements of an ultraviolet spectrophotometer can be relaxed. Ordinate scale expansion makes it possible to achieve lower detectability limits. With the present design, it is possible to measure concentrations of less than 0.1 ppm of copper, cadmium, and chromium with coefficients of variation of less than 10%. (auth)
- Research Organization:
- Perkin-Elmer Corp., Norwalk, Conn.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-016281
- OSTI ID:
- 4055690
- Journal Information:
- Applied Optics (U.S.), Journal Name: Applied Optics (U.S.) Vol. Vol: 2; ISSN APOPA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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