Table T1. Detection limits for major and trace elements analyzed by inductively coupled plasma-atomic emission spectroscopy (ICP-AES).

Table T1. Detection limits for major and trace elements analyzed by inductively coupled plasma-atomic emission spectroscopy (ICP-AES).

Element

ICP-AES
detection limit
(ppb)

Al 28

Ba 1.3

Ca 0.2

Cr 7

Fe 6.2

K 60

Mg 1.6

Mn 1.4

Na 69

Ni 15

P 272

Sc 1.5

Si 12

Sr 0.4

Ti 3.8

V 7.5

Y 3.5

Zr 7.1

Element	ICP-AES detection limit (ppb)
Al	28
Ba	1.3
Ca	0.2
Cr	7
Fe	6.2
K	60
Mg	1.6
Mn	1.4
Na	69
Ni	15
P	272
Sc	1.5
Si	12
Sr	0.4
Ti	3.8
V	7.5
Y	3.5
Zr	7.1

Element	ICP-AES detection limit (ppb)
Al	28
Ba	1.3
Ca	0.2
Cr	7
Fe	6.2
K	60
Mg	1.6
Mn	1.4
Na	69
Ni	15
P	272
Sc	1.5
Si	12
Sr	0.4
Ti	3.8
V	7.5
Y	3.5
Zr	7.1

Element	ICP-AES detection limit (ppb)
Al	28
Ba	1.3
Ca	0.2
Cr	7
Fe	6.2
K	60
Mg	1.6
Mn	1.4
Na	69
Ni	15
P	272
Sc	1.5
Si	12
Sr	0.4
Ti	3.8
V	7.5
Y	3.5
Zr	7.1