Tap Water (1) (YK-421)

Cations in tap water were analyzed using IC YK-421. Ion chromatogaraphy is used for in Japanese regulations for tap water. Ion chromatography is very useful method for the simultaneous analysis of monovalent and divalent cations such as Na⁺, K⁺ and Mg²⁺.



Sample : 15micro-L

No.	std.	Tap water (Water)
1	Li+ 2mg/L	-
2	Na+ 10mg/L	Na+
3	NH4+ 10mg/L	-
4	K+ 20mg/L	K+
5	Ca2+ 20mg/L	Ca2+
6	Mg2+ 10mg/L	Mg2+

Column       : Shodex IC YK-421 (4.6mmID*125mm)
Eluent       : 5mM Tartaric acid + 1mM Dipicolinic acid + 1.5g/L Boric acid aq.
Flow rate    : 1.0mL/min
Detector     : Non-suppressed coductivity
Column temp. : 40deg-C