BC

項目                                               分子生物學級     
                                                       (Molecular Biology grade)
純度Purity                                      ≥99.0% (滴定)
pH (1 M):                                         4.7 - 7.0 
水分Water:                                    ≤0.3 % 
胺Ammonium:                               ≤0.1 % 
鐵Iron:                                             ≤0.0001 %
鉛Lead(%)                                     ≤0.0001
銅Copper(%)                                  ≤0.0001 
吸光度A (1 cm/6 M HPLC 水):  
280 nm:                                 ≤ 0.6 
300 nm:                                 ≤ 0.1
410nm :                                 ≤ 0.1 
紅外光譜鑒別Identification (IR)         合格 
RNA酶 RNase                             無
DNA酶 DNase                             無
蛋白酶Protease                          無

項目                                                        生化試劑級
                                                              （BC）
純度Purity                                               ≥98.0% (NT)
熔點Melting point                                   118°C - 122°C
水溶解試驗Solubility in Water           溶液透明
重金屬Heavy metals (as Pb)              <5 ppm
硫酸鹽灰分Sulfated ash                      <0.05 %
硫酸根SO4                                           < 50 PPM
鐵Fe                                                      < 1 PPM
紫外吸收值UV at 280 nm A:               <0.6
外觀Appearance                                 白色結晶或結晶粉末
紅外光譜鑒別Infrared spectrometry       符合