Abstract
The transient molecular species that are produced in electrothermal atomizers are probed by backlighting the furnace with continuum emission from laser-induced plasmas. Laser plasmas provide a stable and strong continuum spectrum in the UV region for molecular absorption studies. These plasma sources exhibit a substantial improvement in UV absorption measurement over the more conventional sources, permitting good time resolution. The molecular absorption spectrum from 190 to 320 nm for NaI, NaCl, and KH2PO4 are illustrated. The temporal and spectral resolution of this instrument are 100 ms and 0.2 nm, respectively.
Get full access to this article
View all access options for this article.
References
1.
Koirtyohnn
S. R.
and
Pickett
E. E
, Anal. Chem. 37 , 601 (1965 ).
2.
L'Vov
B. V.
Katskov
D. A.
and
Kruglikova
L. P
, Spectrochim. Acta 31B , 49 (1976 ).
3.
Slavin
W.
and
Manning
D. C
, Prog. Anal. At. Spectrosc. 5 , 243 (1982 ).
4.
Holcombe
J. A.
Rayson
G. D.
Akerlind
N.
Jr.
, Spectrochim. Acta 37B , 319 (1982 ).
5.
Redfield
D. A.
and
Frech
W
, J. Anal. At. Spectrom. 4 , 685 (1989 ).
6.
Hadeishi
T.
and
McLaughlin
R. D
, Science 174 , 404 (1971 ).
7.
Smith
S. B.
Jr.
, and
Hieftje
G. M.
, Appl. Spectrosc. 37 , 419 (1983 ).
8.
Rettberg
T. M.
and
Holcombe
J. A
, Spectrochim. Acta 41B , 377 (1986 ).
9.
Styris
D. L.
and
Kay
J. H
, Spectrochim. Acta 36B , 41 (1981 ).
10.
Styris
D. L.
and
Kay
J. H
, Anal. Chem. 54 , 864 (1982 ).
11.
Styris
D. L.
, Anal. Chem. 56 , 1070 (1984 ).
12.
Styris
D. L.
, Freseneius' Z. Anal. Chem. 323 , 710 (1986 ).
13.
Droessler
M. S.
and
Holcombe
J. A
, Spectrochim. Acta 42B , 981 (1987 ).
14.
Bass
D. A.
and
Holcombe
J. A
, Anal. Chem. 59 , 974 (1987 ).
15.
Bass
D. A.
and
Holcombe
J. A
, Anal. Chem. 60 , 578 (1988 ).
16.
Culver
B. R.
and
Surles
T
, Anal. Chem. 47 , 920 (1975 ).
17.
Erspamer
J. P.
and
Niemczyk
T. M
, Anal. Chem. 54 , 538 (1982 ).
18.
Shekiro
J. M.
Skogerboe
R. K.
and
Taylor
H. E
, Anal. Chem. 60 , 2578 (1988 ).
19.
Ohlsson
K. E. A.
and
Frech
W
, J. Anal. At. Spectrom. 4 , 379 (1989 ).
20.
Evtushenko
T. P.
and
Ostrovskaya
G. V
, Sov. Phys. Tech. Phys. 15 , 823 (1970 ).
21.
Laporte
P.
Damany
N.
and
Damany
H
, Opt. Lett. 12 , 987 (1987 ).
22.
Gucer
S.
Massmann
H.
and
El Gohary
Z
, Chemica Acta Turcica 4 , 1 (1976 ).
23.The Merck Index ,
Windholz
M.
Budavari
S.
Stroumtsos
L. Y.
and
Fertig
M. N
, Eds. (Merck & Co. , Rahway, New Jersey , 1976 ), 9th ed. , p. 993 .