使用rspak nn-814分析燙發(fā)液。sample :1. thioglycolic acid (tga)2. dithioglycolic acid (dtga)3. ccysteine (cys)4. disufide of tga and cys (tga-cys)5. ammonia (nh3)6. monoethanolamine (mea)7. cystine (ct)
column : shodex rspak nn-814 (8.0 mm i.d. x 250 mm)
eluent : 9.6 mm nah2po4 (ph2.68 adjusted by h3po4)
flow rate : 1.0 ml/min
detector : uv (210 nm), ri
column temp. : 45 ℃