品级Grade 分析纯 (AR) 外观Appearance clear solution 浓度Strength(Oxime Formation) 50.0-51.5% 色度Color scale <50 APHA > 甲醇Methanol <0.5 % (GC> pH 3.1 - 4.5 Titration
品级Grade 高纯度医用级 外观Appearance clear solution 浓度Strength APPROX. 50.0% (Titration) 色度Color scale <10 APHA > 甲醇Methanol <0.1 % (GC) > pH 3.1 - 4.5
品级Grade 电镜专用 (for electron microscopy) 外观Appearance clear colorless solution 浓度Strength APPROX. 50%(Titration) UV-VIS SPECTRUM pass,A235:A280 ratio =0.5 (电镜专用级用于电镜固定液或要求更高纯度的场合)
|