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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: water_testing_account on July 07, 2019, 03:35:25 PM

Title: Sodium and Potassium concentration testing
Post by: water_testing_account on July 07, 2019, 03:35:25 PM

Hey everyone, so I have a few 25 mL samples of water that I would like to test for Sodium (Na+) and Potassium (K+) concentration levels (mg/L). I have done some searching to find out if there are titration techniques to do this and have come up fairly dry for a good quantitative test other than using an atomic absorption instrument. Unfortunately, due to some software update issues, the AA instrument at my university is currently out of commission. Before I look into paying lab fees at another lab I was hoping to find an alternative method.

Any resources or readings you can suggest will help me as well! Thanks for the help in advance!

Title: Re: Sodium and Potassium concentration testing
Post by: chenbeier on July 07, 2019, 03:41:12 PM

Alcaline Elements are difficult, maybe Iconic chromatography could work.

Title: Re: Sodium and Potassium concentration testing
Post by: wildfyr on July 07, 2019, 10:41:52 PM

He means ionic chromatography, IC. It's basically the same issue, you really need an instrument.

Title: Re: Sodium and Potassium concentration testing
Post by: water_testing_account on July 08, 2019, 04:19:58 AM

Yeah I see, this is about what I had figured. It's only a minor problem though, I can use another lab if I have too. Thanks for the help still.