For our samples with high sodium content we have installed a humidifier. We're currently facing issues with the humidifier and ISTD drop. The sequence was running very smoothly, but then we observed a sudden drop in Al and ISTD CPS, which stayed low throughout the run. We're suspecting that the argon flow might have decreased due to issues with the tubing.
Additionally, we've noticed bubbles in the gas lines submerged in the humidifier water. Is this normal, or could it be related to the issues we're experiencing?
Could anyone please provide your thoughts on these matters? We're particularly interested in any suggestions you have for preventing such significant drops in CPS.
I've attached a picture for your reference.