I want to analyze plant samples for Nitrogen, Potassium, Phosphorus and Sodium in Plant shoot and root through Flowsys III. Is there any reference about this method?
This equipment is a continuous flow analyser. This type of equipment can be used to test water or liquid extracts/digests of plant samples. The methods are usually colorimetric although I have seen applications with a flame photometer (for Na). The flow methods are simply adaptations of the conventional manual procedures.