Urgent help needed! ICP MS analysis of istope ratio Cd111/Cd114

dinhnq@gmail.com · science forum beginner Joined: 13 Jun 2006 Posts: 2

Dear all,

Can anyone out there help me with this question:
1. I sent the biological sample to measure the concentration of Cd111,
Cd114 and isotop ratio of Cd111/Cd114 and I got the data but I am not
familiar with this kind of data and I have never used this instrument
(ICP-MS). Can you please tell me what is reading unit does ICPMS give
when measuring the isotop concentration? How to convert the reading
value to isotope concentration?
In the data I got (in excel file), there are two columns, one is
reading value with no unit (I thought so), the other one is isotope
concentration (µg/L), e.g. in case Cd111, they multiply the reading
value by 0.128 (12,8 is natural percentage of Cd111).

I would be highly appreciated if anyone can explain me about this.
Thanks a lots for your time and help!

Best regrads,

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