Organic Acids in Liquid for Permanent Wave

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. : 45deg-C