Areca on Ultisil XB SCX

Reference solution

Column Welch Ultisil XB-SCX 4.6×250,5μm (P/N: 00212-31043)
Mobile Phase 0.2% phosphoric acid solution(adjust pH to 3.8 with ammonia water): acetonitrile = 45:55
Detector 215nm
Temperature 30℃
Flow Rate 1ml/min
Injection Volume 10ul