Table 1. Condition of IOP-OES equipment analysis for inorganic content measurement

Instrument	ICP-OES (Optima 7000 DV)
Gas	Plasma gas	Liquid argon
	Shear gas	Air
Gas flows (L/min)	Plasma	15
	Auxiliary	0.2
	Nebulizer	0.6
RF power	1,500
Pump flow rate (mL/min)	1.5
Spray chamber type	Cyclonic type
Plasma view	Radial / axial