Organic acids in liquid for permanent wave were analyzed using RSpak NN-814.
Sample :
1. Thioglycolic acid
2. Dithioglycolic acid
3. Cysteine
4. Thioglycolic acid and cysteine mixture disulfide
Column : Shodex RSpak NN-814 (8.0mmID*250mm)
Eluent : 0.06% H3PO4 + 0.138% NaH2PO4 aq.
Flow rate : 1.0mL/min
Detector : Shodex RI
Column temp. : 45°C
