I’ve been adding my results to the Captive8 spreadsheet and noticed that Fluoride I have to leave blank. I understand that not all the...

Hello Bill, I understand you called inquiring about potential sources of arsenic (As) in your water samples. Unfortunately, arsenic is a...

Dear Andrew, We measure phosphorus (P) in the ICP test. The calculated value for phosphate (PO4) assumes that all phosphorus is in the...