-
- Posts: 10
- Joined: Fri Oct 28, 2022 6:47 am
- Location: Ελλάδα
1.When i use them on my standards (e.g. 2ppb chlorite + chlorate in Type 1 HPLC Water) the procedure seems to INCREASE the amount of chloride of the standard (without pre-treatment my water contains about 5ppb chloride and then it goes to 30ppb approximately). The recoveries on my 2ppb standards of chlorite and chlorate are above 90%.
2. When i use them on my samples it seems that i get much lower recoveries with the following paradox. If i pass my sample through two in series of those cartridges i detect a higher amount of chlorites than i do when i pass my sample through one of those cartridges.
Has anyone use such cartridges in such matrices? Am i using them wrong? Is it something else inside my sample that interacts with the AG+? Thanks in advance and sorry for my bad english.
P.S. Before using the cartridge on the sample i pass about 3mL Type 1 HPLC water. I use them manually and i pass about 1 drop (0.05mL) per second