Analyte* |
M* |
Slope |
Intercept |
R2 |
ΔEa (Expt) |
ΔEa (Theoretical, eV)** |
LC 1A |
LC 1B |
LC 1C |
(a) FAAS experiment |
MgI |
Ca |
6.34×10-4 |
|
|
-1.5168 |
0 |
-0.721 |
-5.335 |
MgI |
Sr |
4.84×10-4 |
|
|
-1.6924 |
0 |
-1.952 |
-7.422 |
(a) FAES experiment |
Mg(I) |
K |
4.43×10-5 |
1.14648 |
0.851 |
-2.223 |
0 |
-3.306 |
-7.646 |
K(I) |
Na |
2.91×10-5 |
1.21180 |
0.798 |
-2.316 |
0 |
+0.798 |
-4.341 |
(b) ICP-AES: Atom line: ne = nMII |
CaI |
Li |
2.50×10-4 |
|
|
-6.62 |
0 |
-.0721 |
-5.335 |
(c) ICP-AES: Ion line: ne = nMIII |
CaII |
Li |
1.83 |
|
|
-9.83 |
0 |
-6.478 |
-11.09 |
MgII |
Li |
1.51 |
|
|
-13.52 |
0 |
-9.641 |
-14.26 |
Mg(II) |
Li |
1.32×10-5 |
1.01889 |
0.992 |
-8.713 |
0 |
-9.644 |
-14.260 |
Mg(II) |
K |
1.51×10-5 |
1.00707 |
0.990 |
-8.609 |
0 |
-10.695 |
-14.260 |
Sr(II) |
Li |
1.15×10-5 |
1.04741 |
0.979 |
-8.820 |
0 |
-5.638 |
-10.254 |
Sr(II) |
K |
1.28×10-5 |
1.02957 |
0.913 |
-8.737 |
0 |
-6.690 |
-10.254 |
Ca(II) |
Li |
4.25×10-6 |
0.95376 |
0.876 |
-9.592 |
0 |
-7.531 |
-11.096 |
*Ionization potentials (eV): Mg1=7.64624, MgII=15.03528, SrII=11.03013, CaI=
6.11316, CaII=11.87172, LiI=5.39172, KI=4.34066, NaI=5.13908 [65], **LC=
limiting case (see text): LC 1A=LTE, LC 1B=Pre-LTE, LC 1C=Pre-LTE(analyte)/
LTE(Interferent), CL = confidence level [59,60]. |