fony
第2楼2011/09/08
Phase | Modification | % C | pH range | Particle sizes [µm] | USP | Structure |
C18 Gravity | octadecyl, high density coating, multi-endcapping | 18 | 1–11 | 1.8 · 3 · 5 | L1 | |
C8 Gravity | octyl, high density coating, multi-endcapping | 11 | 1–11 | 1.8 · 5 | L7 | |
C18 Isis | octadecyl, specially cross-linked modification, endcapped | 20 | 1–10 | 1.8 · 3 · 5 | L1 | |
C18 Pyramid | octadecyl with polar endcapping | 14 | 1–9 | 1.8 · 3 · 5 | L1 | |
PolarTec | octadecyl with embedded polar group | 17 | 1–9 | 3 · 5 | L1 L60 | |
PFP | pentafluorophenyl-propyl with multi-endcapping | 8 | 1–9 | 3 · 5 | L43 | |
Sphinx RP | bifunctional, balanced ratio of propylphenyl and octadecyl, endcapping | 15 | 1–10 | 1.8 · 3 · 5 | L1 L11 | |
C18 HTec | octadecyl, high density coating, high capacity, multi-endcapping | 18 | 1–11 | 1.8 · 3 · 5 7 · 10 | L1 | |
C18 ec | octadecyl, medium density, endcapping | 17.5 | 1–9 | 3 · 5 and larger | L1 | |
C8 ec | octyl, medium density, endcapping | 10.5 | 1–9 | 3 · 5 | L7 | |
HILIC | ammonium – sulfonic acid | 7 | 2–8.5 | 1.8 · 3 · 5 | ||
CN/CN-RP | cyano (nitrile) for NP and RP separations | 7 | 1–8 | 3 · 5 | L10 | |
NH2/NH2-RP | aminopropyl for NP and RP separations | 2.5 | 2–8 | 3 · 5 | L8 | |
SiOH | unmodified NUCLEODUR® | – | 3 · 5 and larger | L3 |
耐士科技
第3楼2011/09/08
制备色谱散装填料
键合硅胶
孔径Å | 键合板 | 粒径μm | Davisil®硅胶级别 | 包装规格 | 货号 |
60 | C18 | 10 | 710NC18E | 250g | 5135418 |
1kg | 5135305 | ||||
35-60 | 633NC18E | 250g | 5135414 | ||
1kg | 5134095 | ||||
Cyano | 10 | 710NCNE | 250g | 5135419 | |
1kg | 5134223 | ||||
35-60 | 633NCNE | 250g | 5135415 | ||
1kg | 5134224 | ||||
Diol | 10 | 710N2OH | 250g | 5135417 | |
1kg | 5135302 | ||||
35-60 | 633N2OH | 250g | 5135413 | ||
1kg | 5135302 | ||||
Amino | 10 | 710NNH2 | 250g | 5135420 | |
1kg | 5134682 | ||||
35-60 | 633NNH2 | 250g | 5135416 | ||
1kg | 5134096 |
键合相 | 基质 | 粒径 | 碳含量 | 填料孔径 | 填料比表面积 | 封尾 | pH范围 | 特点 | 优点 |
C18-HL | 硅胶 | 1.5μm | 10% | 120 Å | 220m2/g | 是 | 1-10 | 超纯硅胶,全键和 | 对疏水性化合物具有较高的载量。峰形好。 |
C18-B | 硅胶 | 1.5μm | 5% | 120 Å | 220m2/g | 特有 | 1-10 | 高纯硅胶,独特的封尾技术 | 改善碱性化合物在中性pH条件下的峰形。使用质谱联用检测时,无需酸化流动相,因此对于碱性化合物有更好的灵敏度和峰形。 |
C18 | 硅胶 | 1.5μm | 6% | 100 Å | 220m2/g | 是 | 1-10 | 中等程度的硅胶暴露 | 经典的反相选择性。使用较少的键合相量以优化速度和灵敏度。 |
C18-P | 硅胶 | 1.5μm | 5% | 100 Å | 220m2/g | 否 | 1-10 | 低碳含量,高度暴露硅胶 | 独特的极性选择性。与其他C18相比,对疏水性化合物的保留最小,而对极性化合物的保留较长。 |
HILIC | 硅胶 | 1.5μm | N/A | 120 Å | 220m2/g | 否 | 2-8 | 极性键合相,平衡时间短,保存于乙腈/水 | 峰流出顺序与反相分离时相反。适用于用高有机相分析高极性化合物,有更好的质谱分析灵敏度。 |
Silica | 硅胶 | 1.5μm | N/A | 120 Å | 220m2/g | 否 | 2-8 | 传统正相,用于100%有机溶剂 | 按吸附色谱原理分离不溶于水的有机物异构体 |