| 分子式 | |
| 其他事项 | 4.120158Tris(hydroxymethyl)aminomethaneBiochemical grade, for analysis(HOCH2)3CNH2 M.= 121.14CAS No. 77-86-1Assay (Total base, on dry substance) ≥ 99.75% Infrared spectrometry authentic Water (KF) ≤ 0.5% Sulfated ash ≤ 0.1%pH (5% in H2O) 10.0~11.5 Heavy metals ≤ 5 ppmChloride(Cl) ≤ 5 ppmLead (Pb) ≤ 5 ppmIron (Fe) ≤ 1 ppmUV absorption (10% aq. soln.) (1 cm cell)λ 260 nm max 0.1λ 280 nm max 0.1UV absorption (40% aq. soln.) (1 cm cell)λ 290 nm max 0.2 |
羧甲基赖氨酸检测标准品
编号:ZKAF-5206 CAS号:5746-04-3 规格:1mg 浓度:97.6%
1-辛烯
编号:ACHE-N-10087-1G(O-756) CAS号:111-66-0 规格:1G
Synthetic Basalt Glass
编号:GSC-2G 规格:50g
定制混标52 标准品
编号:CDGG-132952-03-1ml 规格:100mg/L于正己烷,1 mL
定制混标39 标准品
编号:CDGG-132939-03-1ml 规格:100mg/L于正己烷,1 mL
定制混标10 标准品
编号:CDGG-132910-01-1ml 规格:1000mg/L于乙腈,1 mL