MorrisonG. H., ed., Trace Analysis Physical Methods (Interscience Publishers, Wiley, New York, 1965), p. 10.
2.
KnolleW. R., to be published.
3.
GabrielsR., Anal. Chem.42, 1439 (1970).
4.
With the IL 153 spectrometer a second channel is available that provides detection via a filter in conjunction with a photodiode detector. This particular arrangement was less sensitive at 766.5 nm than the grating and photomultiplier tube detection arrangement.
