Agilent Technologies 7500 ICP-MS Operator's Manual page 641

Agilent 7500 ICP-MS ChemStation Operator's Manual
Appendix
(
∑
= −
2
S Mi
( MM )
i
∑
= −
S ( MiRi )
( MR )
i
∑ ∑
∑
= −
3
S Mi
2
( MM )
i
∑
= −
2
S Mi Ri
2
( M R )
i
∑
= −
4
S Mi
2 2
( M M )
i
Correct the CPS of the element to be quantitatively analyzed using the
virtual-internal-standard correction coefficient.
=
Cps _ na Cps _ sa
where
Cps_na : Corrected CPS of the element to be quantitatively
Cps_sa : CPS of the element to be quantitatively analyzed
Ra :
∑
2
Mi )
i
n
∑ ∑
Mi Ri
i i
n
2
Mi Mi
i i
n
∑ ∑
2
Mi Ri
i i
n
∑
2 2
( Mi )
i
n
* Ra
analyzed
Virtual-internal-standard correction coefficient for the
CPS of the element to be quantitatively analyzed
A-25