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Anion Analysis in Lithium Salts (1) (NI-424)

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Lithium tetrafluoroborate, lithium hexafluorophosphate and lithium perchlorate are used as an electrolyte of a lithium ion secondary battery. In this application, the anions of these salts were analyzed using IC NI-424, an anion analysis column for non-suppressor method.


Sample : 20μL
1. BF4- 20mg/L
2. ClO4- 50mg/L
3. PF6- 50mg/L


Column       : Shodex IC NI-424 (4.6mmI.D. x 100mm)
Eluent       : 8mM 4-Hydroxybenzoic acid + 3.4mM Bis-Tris + 2mM Phenylboronic acid
               + 0.005mM *CyDTA aq.
Flow rate    : 1.0mL/min
Detector     : Non-suppressed conductivity
Column temp. : 40℃

* CyDTA: trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid