白色晶体粉末。
 

项目                                  超纯级
纯度assay                             ≥99.0%(T)
水分Moistrue                          ≤0.5%
铁Iron(Fe)                            <5PPM 
氯Chloride                            ≤0.005%
硫酸根Sulfate                         ≤0.005%
灼烧残渣Residue On Ignition           ≤0.1%
重金属Heavy Metals （as Pb)           <5PPM
pH(1% in H2O)                         4.0-5.5(20℃) 
A260(0.1M,water):                     ≤0.025
A280(0.1M,water):                     ≤0.025
项目                                 生化试剂级
                                        (BC)
纯度assay                             ≥99%(T)
灼烧残渣Residue On Ignition           ≤0.1%
重金属Heavy Metals （as Pb)           <10PPM

生物缓冲剂，用在生化诊断试剂盒、DNA/RNA提取试剂盒及PCR诊断试剂盒里
室温保存