产品说明
一般描述
Ascentis® Express AQ-C18 is a high-speed, high-performance liquid chromatography column based on the Fused-Core® particle design. The particle provides a thin porous shell of high-purity silica surrounding a solid silica core. This particle design exhibits very high column efficiency due to the shallow diffusion paths in the 0.4 μm thick porous shell and the small overall particle size of 2 μm. The AQ-C18 is a C18 bonded phase prepared using a proprietary procedure that incorporates a small amount of polar silane which makes the phase resistant to dewetting. This resistance to dewetting allows the users of the AQ-C18 phase to run highly-aqueous (up to 100%) mobile phases. The modified C18 phase exhibits similar retention to Ascentis® Express C18 with a different selectivity, adding a valuable alternative for resolving difficult separations. The AQ-C18 is a reversed-phase packing that can be used for basic, acidic, and neutral compounds.
分析说明
The target analytes include acids, bases, and polar analytes.
法律信息
Ascentis is a registered trademark of sigma-aldrich Co. LLC
Fused-Core is a registered trademark of Advanced Materials Technology, Inc.
产品性质
| 物料 | stainless steel column |
| agency | suitable for USP L1 |
| 产品线 | Ascentis® |
| 特点 | endcapped |
| 包装 | 1 ea of |
| 标记范围 | 6.5% Carbon loading |
| technique(s) | HPLC: suitable LC/MS: suitable UHPLC-MS: suitable UHPLC: suitable |
| 色谱柱长度 × 内径 | 25 cm × 2.1 mm |
| 基质 | Fused-Core® silica particle platform superficially porous particle |
| 基质活性基团 | AQ-C18, polar modified bonding phase |
| 粒径 | 2 μm |
| 孔径 | 90 Å pore size |
| 表面积 | 120 m2/g |
| 操作pH范围 | 2 - 9 |
| 分离技术 | reversed phase |
SUPELCO
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