TABLE III

ICP Results for Blank Solutions

Element	Purified Water HR-ICP MS (µg/mL)		15% KCl Solution ICP-OES (µg/mL)
	Conc^{^a}	LoQ^{^b}	Conc	LoQ
Si	<0.05	0.05	<0.3	0.3
B	<0.05	0.05	<0.2	0.2
Na	<0.10	0.10	1.3	0.2
Al	<0.05	0.05	<0.2	0.2
Ca	<0.05	0.05	<0.2	0.2
Mg	<0.05	0.05	<0.1	0.1
Measurement uncertainty	>0.5 µg/mL–25 µg/mL: 10%		<0.5 µg/mL: 30%0.5 µg/mL–5 µg/mL: 15%>5 µg/mL–25 µg/mL: 10%

↵a Conc is concentration.
↵b LoQ is limit of quantification.