Does temperature of the sample effect the results of Fluval Liquid tests?

[vaguelyreeflike]

Probably a dumb question and I’m assuming the answer is yes, but will the results be effected with Fluval liquid test kit if the sample water is super cold?
We do tests for people at work and someone brought us an ice cold sample and the ammonia turned the light green indicating 0, but the nitrite/nitrate did not change colour at all, just stayed perfectly clear.
I tested twice. The tank is just over two weeks old so it should show SOMETHING. I made sure it wasn’t the reagent as when I tested our goldfish pond it was off the charts where it always is, and all other tests have seemed accurate.

 

[Dan_P]

Probably a dumb question and I’m assuming the answer is yes, but will the results be effected with Fluval liquid test kit if the sample water is super cold?
We do tests for people at work and someone brought us an ice cold sample and the ammonia turned the light green indicating 0, but the nitrite/nitrate did not change colour at all, just stayed perfectly clear.
I tested twice. The tank is just over two weeks old so it should show SOMETHING. I made sure it wasn’t the reagent as when I tested our goldfish pond it was off the charts where it always is, and all other tests have seemed accurate.

A very cold sample will significantly slow the chemical reactions involved in these tests and indicating a low concentration of or no analyte.

 

[vaguelyreeflike]

A very cold sample will significantly slow the chemical reactions involved in these tests and indicating a low concentration of or no analyte.

I figured, thank you so much! next time i will try and bring the sample to room temp or close to first.

 

[Randy Holmes-Farley]

FWIW, warming samples to at least room temp is always a good idea. In general, temp is more likely to impact color matching tests (like nitrate or phosphate) than a titration test like alkalinity, calcium, or magnesium.

 

[vaguelyreeflike]

FWIW, warming samples to at least room temp is always a good idea. In general, temp is more likely to impact color matching tests (like nitrate or phosphate) than a titration test like alkalinity, calcium, or magnesium.

I’ll definitely do this in the future