Recommendation for a K test kit

[gchoo]

Bros,

any recommendation for a good test kit to measure K?

Thanks!

[geoffrey]

K test kits? I have not seen one but heard Lamotte has one. You can't find Lamotte here.

[blur one]

Lamotte has an agent in Singapore but they dont carry anything in and you have to order on an indent basis but the kits are very expensive....

[gchoo]

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On 8/11/2003 2:08:18 PM

K test kits? I have not seen one but heard Lamotte has one. You can't find Lamotte here.
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There seems to be alot of talk about PMDD and stuff... so surely there must be some way/test kit to measure K right?
Can someone enlighten?

[PeterGwee]

There is no need for such precision with K as the nutrient does not induce algae growth at high levels (Dose estimatively should do). You only need to be anal with N as high levels of it can cause algae issues.

[bclee]

Most test methods for pottassium is beyond hobbyist level. Professionals use methods like atomic absorption spectrometry for potassium analysis. I also do not recall that LaMotte has a kit for potassium testing. I remembered Tom Barr mentioned had a kit that measure potassium but I can't remember who's the maker.(Again, my memory may not be right that Tom has such a kit. )

Potassium (K+) remains very stable as cations in water. K is way down the negative end in the electrochemical series. So I guess it would very difficult to get the K+ to react or precipitate for a simple visual test.

BC

[PeterGwee]

Its more of a turbidity test...

[bclee]

Peter, you are right. LaMotte do have a test kit to a turbidity test for Potassium. It is sold as part of the hydroponics kit.

Here is the LaMotte agent in Singapore:
Goodhill Marketing Pte. Ltd.
110 Paya Lebar Road
#03-06, Singapore Warehouse 409009
Kallang Way # 06-18/22
Tel: 65 6745 1991
Fax: 65 6747 6555
Email: [email protected]
Contact: B.C. Teo

BC