Several optimization criteria for ICP atomic emission spectrometers have been investigated with respect to precision and sensitivity. The results are discussed with regard to noise characteristics of ICP-AES. For establishing optimum working conditions, shot noise, dark current noise, and all kinds of flicker noise have to be taken into consideration. An empirical criterion for optimization procedures is proposed which covers the relative standard deviations of background and gross signal for high analyte concentration as well as the signal-to-background ratio (SBR). All experiments have been performed with the use of the variable step-size simplex method.
BoykoW. J.KeliherP. N., and PattersonJ. M.III, Anal. Chem.54, 188R (1982).
2.
FriegeH. and WernerP., Gewaesserschutz-Wasser-Abwasser67, 83 (1983).
3.
EbdonL.CaveM. R., and MowthorpeD. J., Anal. Chim. Acta115, 179 (1983).
4.
TerblancheS. P.VisserK., and ZeemanP. B., Spectrochim. Acta36B, 293 (1980).
5.
GreenfieldS., in Developments in Atomic Plasma Spectrochemistry, BarnesR. M., Ed. (Heyden and Sons, London, 1981), p. 1.
6.
GreenfieldS. and BurnsD. T., Anal. Chim. Acta113, 205 (1980).
7.
BergmanS. S. and McLarenJ. W., Appl. Spectrosc.32, 372 (1978).
8.
ImaiS., ICP-Information Newsl.8, 85 (1982).
9.
KornblumG. R.Smeyers-VerbekeJ.MichotteY.KlokA.MassartL., and De GalanL., ICP-Information Newsl.8, 291 (1982).
10.
MarquardtD.LuederitzP.GrosserJ., and GlatzelE., Z. Chem.22, 402 (1982).
11.
BroekaertJ. A. C.LeisF., and LaquaK., in Developments in Atomic Plasma Spectrochemical Analysis, BarnesR. M., Ed. (Heyden and Sons, London, 1980), p. 84.
12.
MassartD. L.DijkstraA., and KaufmanL., Evaluation and Optimization of Laboratory Methods and Analytical Procedures (Elseviers, Amsterdam, 1978).
13.
DemingSt. N. and MorganSt. L., Anal. Chem.45, 278A (1973).
14.
DoerffelK. and EckschlagerK., Optimale Strategien in der Analytik (Verlag Harri Deutsch, Leipzig, 1981).
15.
EbdonL., ICP-Information Newsl.7, 513 (1982).
16.
CaveM. R.BarnesR. M., and DenzerP., ICP-Information Newsl.7, 514 (1982).
17.
MooreG. L.Humphries-CuffP. J., and WatsonA. E., Spectrochim. Acta39B, 915 (1984).
18.
LearyJ. J.BrookesA. E.DorrzapfA. F., and GolightlyD. W., Appl. Spectrosc.36, 37 (1982).
19.
GarbarinoJ. R. and TaylorH. E., Appl. Spectrosc.33, 220 (1979).
20.
SalinE. D. and HorlickG., Anal. Chem.52, 1578 (1980).
21.
BoumansP. W. J. M.McKennaR. J., and BosfeldM., Spectrochim. Acta36B, 1031 (1981).
22.
BoumansP. W. J. M.McKennaR. J., and BosfeldM., ICP-Information Newsl.7, 291 (1981).
