项目                                                              离子对试剂，≥98.0% 
                                                                     (Ion-Pair Chromatography，≥98.0%)
外观Appearance                                        白色至类白色结晶粉末
红外光谱测定Infrared spectrometry       和对照匹配
纯度Purity                                                    ≥98.0%(离子交换滴定)  
Absorbance @ 254 nm (0.005M aq. soln.)  ≤ 0.05 A.U.

项目                               离子对试剂，≥99%
                               (for Ion pair chromatography，≥99%)
纯度Purity                        ≥99%(离子交换滴定)  
外观Appearance                     白色至类白色结晶粉末
红外光谱测定Infrared spectrometry  和对照匹配
10%水溶液Solubility (10%, 热水)    无色透明
熔点mp >300 °C
λ 5 % in H2O
UV absorption
  λ: 210 nm A:                     ≤0.05
  λ: 220 nm A:                     ≤0.03
  λ: 230 nm A:                     ≤0.02
  λ: 260 nm A:                     ≤0.02
  λ: 500 nm A:                     ≤0.02
干燥损失Drying loss                <1.0 %