[Distinction between sodium chlorite and sodium hypochlorite by ion-chromatography].
A new method to distinguish between sodium chlorite and sodium hypochlorite by ion-chromatography is described. Under the operating condition (TSK-gel DEAE-5PW glass column 8.0 mm ID x 7.5 cm with an aqueous solution containing 20 mM sodium carbonate, 10 mM sodium hydroxide and 4 mM ethylenediamine) and electrochemical detector (Toso EC-8000, -200 mV, Ag-electrode), chlorite and hypochlorite anions were clearly separated and detected and the retention times (tR) were 6.0 and 4.6 min, respectively.
Goda
Y
Y
Suzuki
J
J
Kamikura
M
M
Yoshihira
K
K
D002712:Chlorides / Q000302:isolation & purification*; D002852:Chromatography, Ion Exchange / Q000379:methods*; D004563:Electrochemistry / Q000379:methods; D005503:Food Additives / Q000302:isolation & purification; D012973:Sodium Hypochlorite / Q000302:isolation & purification*
D002712:Chlorides; D005503:Food Additives; D012973:Sodium Hypochlorite; C001599:chlorite