Agilent Technologies 7500 ICP-MS User Manual

A-27
Agilent 7500 ICP-MS ChemStation Operator’s Manual
Appendix
where
Auto Add Mode
*ISTD factor = (cps of ISTD in the STD) / (cps of ISTD in the sample)
Normal Mode
*ISTD factor = (concentration of ISTD in the sample) x (SemiQuant factor)
/ (cps of ISTD in the sample)
cps < min. peak
Start
(count / bkg count) < 3%
Isotope abundance error <= 10%
Oxide Check:
(count of target / count of (target - 16 amu)) <= 1%
Hydride Check:
(count of target / count of (target - 1 amu)) <= 1%
A
rgide Check:
(count of target / count of (target - 40 amu)) <= 0.1%
Doubly Charged Check:
(count of target / count of (target x 2 amu)) <= 1%
Dimer Check:
(count of target / count of (target / 2 amu)) <= 0.1%
Calculate concentration
(count x dilution factor x *ISTD factor)
/ SemiQuant factor
Next element
Output is ON?
Output is ON?
Output is ON?
No
No
No
N
o
Yes
Yes
Yes
No
No
Yes
Yes
Yes
No

Agilent Technologies 7500 ICP-MS Specifications

General

Brand	Agilent Technologies
Model	7500 ICP-MS
Category	Laboratory Equipment
Language	English