Abstract
A recursive algorithm independent of any functional peak shape is presented for determining optimal integration limits of spectral data from multiwavelength spectrometers. The resulting areas have significantly higher signal-to-noise ratios than the peak maxima. Signal-to-noise ratios are computed for synthetic data with both shot and white noise limitations. The algorithm is also applied to data from a Fourier transform spectrometer. For these data, integration of 25 adjacent spectral elements improves the signal-to-noise ratio as well as the signal averaging peak maxima from 25 successive spectra.
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References
1.
Chester
T. L.
Fitzgerald
J. J.
and
Winefordner
J. D
, Anal. Chem. 48 , 779 (1976 ).
2.
Winefordner
J. D.
Avni
R.
Chester
T. L.
Fitzgerald
J. J.
Hart
L. P.
Johnson
D. J.
and
Plankey
F. W
, Spectrochim. Acta 31B , 1 (1976 ).
3.
Luc
P.
and
Gerstenkorn
S
, Appl. Opt. 17 , 1327 (1978 ).
4.
Horlick
G.
Hall
R. H.
and
Yuen
W. K
, Fourier Transform Infrared Spectroscopy ,
Ferraro
J. R.
Ed. (Academic Press , New York , 1982 ), Vol. 3 , p. 37 .
5.
Thorne
A.
, Anal. Proceed. 22 , 63 (1985 ).
6.
Faires
L. M.
, Spectrochim. Acta 40B , 1473 (1985 ).
7.
Stubley
E. A.
and
Horlick
G
, Appl. Spectrosc. 39 , 805 (1985 ).
8.
Synovec
R. E.
and
Yeung
E. S
, Anal. Chem. 57 , 2162 (1985 ).
9.
Phillips
J. B.
, Anal. Chem. 58 , 2091 (1986 ).
10.
Laeven
J. M.
and
Smit
H. C
, Anal. Chim. Acta 176 , 77 (1985 ).
11.
Barnett
W. B.
Bohler
W.
Carnrick
G. R.
and
Slavin
W
, Spectrochim. Acta 40B , 1689 (1985 ).
12.
Marra
S.
and
Horlick
G
, Appl. Spectrosc. 40 , 804 (1986 ).