I purchased a trident from a friend -- set it up and working great. My reagents got low so I purchase new bottles. Swapped them out, and did a calibration using the paraments in the sample bottle.
Prior to the change, my ALK was around 8.1, CA around 450, and MG around 1500. After I made the switch, my tests are coming back ALK around 8.1, CA around 320 and MG around 1500. I used my Hanna CA checker and got CA around 450. I tried calibrating it again. Same result.
What should I believe. Hanna is consistent with pre-reagents swap but Trident is not.
Prior to the change, my ALK was around 8.1, CA around 450, and MG around 1500. After I made the switch, my tests are coming back ALK around 8.1, CA around 320 and MG around 1500. I used my Hanna CA checker and got CA around 450. I tried calibrating it again. Same result.
What should I believe. Hanna is consistent with pre-reagents swap but Trident is not.