Basic Training 4th Annual ICP Conference

Let’s move back to the software… • We are going to look at single element iron vs 6020ICS-9A • We will see that there is obvious signal depression • We will go through the following steps: • Manually examine spectra • Use a custom-made calculation spreadsheet • Apply an internal standard correction factor • Determine the actual amount of zinc impurity present

Live Demo!

Example of Signal Quenching

o All 4 samples contain 2361µg/g Fe o Only 2361µg/g Fe o 6020ICS-9A contains several other high matrix elements.

26% reduction in signal on Fe 373.486nm

• Good indication of signal quenching • Consider using internal standard