If excessive carryover is noticed by analyzing a high concentration standard and then analyzing a blank, and the measured concentration of the blank is greater than twice the method detection limit or close to the report limit.
- iCAP Q
- iCAP RQ
- iCAP TQ
- iCAP 6000
- iCAP 7000
- iCAP Pro
Replace the autosampler probe. A modified rinse using an addition of 9 uM of Potassium Bromate can help as well.
The autosampler probe can break down over time and become porous trapping elements that have a tendency to particulate out of solution.