In the case of the proposed HR-CS FAAS method, the measurements
of N and P using the molecular lines of NO at 215.360 nm and of PO at
247.620nm, respectively, and detection of K used the alternative atomic
line for K at 404.722 nm. Seven replicate measurements were made at
observation heights of 9 mm (NO, PO) and 8 mm (K), using an aspiration
rate of 5.0 mL min−1.