Determination of sodium, potassium, magnesium, and calcium in precipitation

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Determination of sodium and potassium by AAS and AES

4.6.1.9 Analytical procedure

Element	Sodium	Potassium	Magnesium
Calcium
Wavelength nm	589.6	766.5	285.5	422.7

4.6.1.9 Analytical procedure
Transfer 10 ml of the sample to a test tube. Add with a micro pipette 100 µl of the Cs-La solution and mix well. Run the samples and read the absorption (or emission) signal from the readout. Use the calibration graph to find the concentration in the sample.
Note: Read and follow the instructions for the instrument carefully.
Last revision: November 2001

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