Making reference fluid

[WhatCouldGoWrong71]

I need to make (or buy) No3 and PO4 reference fluid. My nutrients got away from me. I trusted my Mastertronic too much. It’s WAY the F off right now. It was much much closer on my last ICP, near spot on. It’s my fault, I trusted but didn’t verify. My Hanna is really close to my ICP. In reading and watching videos I see that I can create a baseline calibration against a known reference solution. I couldn’t follow their instructions plus the link to purchase something wasn’t even in English.

I need to create No3 and PO4 reference solution that is within range of .5 to 2.0. Can this be purchased? Or, how can I make a liter of each? If I make a liter will it stay stable over time? Any help would be greatly appreciated. If someone made it, I’d even buy it from you, lol.

 

[Dan_P]

I need to make (or buy) No3 and PO4 reference fluid. My nutrients got away from me. I trusted my Mastertronic too much. It’s WAY the F off right now. It was much much closer on my last ICP, near spot on. It’s my fault, I trusted but didn’t verify. My Hanna is really close to my ICP. In reading and watching videos I see that I can create a baseline calibration against a known reference solution. I couldn’t follow their instructions plus the link to purchase something wasn’t even in English.

I need to create No3 and PO4 reference solution that is within range of .5 to 2.0. Can this be purchased? Or, how can I make a liter of each? If I make a liter will it stay stable over time? Any help would be greatly appreciated. If someone made it, I’d even buy it from you, lol.

Fauna Marin and Tropic Marin sell multiple parameter (mixed) reference standards.

 

[WhatCouldGoWrong71]

Fauna Marin and Tropic Marin sell multiple parameter (mixed) reference standards.

Thanks. I didn’t see this when looking, but, I only looked in one spot. When I saw the “make” from Focus, I poorly assumed…

 

[WhatCouldGoWrong71]

I had no clue… I was looking for a stand alone… thank you!!!

 

[Randy Holmes-Farley Verified Community Expert]

An alternative is to make a dosing standard, and dose it to some tank water, and look for the rise.