Cadmium Isotope Materials
The most commonly measured cadmium isotope ratio is 114Cd/110Cd because both isotopes have abundances greater than 10 %, and there is a substantial difference in mass between the two isotopes. Variations in δ114/110Cd values of terrestrial materials range from −3.6 to +3.4 ‰. The primary technique for analyzing cadmium isotopes is multi-collector ICP-MS, where a routine δ114/110Cd uncertainty of 0.4 ‰ can be achieved.
|NIST SRM 3108||solution||0 ‰|
|BAM-I012||solution||-1.305 ‰ *|
|Cd-2211||elemental Cd||+0.355 ‰|
* Exact value defining the δ114/110CdSRM3108 scale.
The values listed in this table are compilation and are not necessarily CIAAW recommendations.