推荐产品
product name
SUPELCOSIL™ LC-Si HPLC 柱, 5 μm particle size, L × I.D. 25 cm × 10 mm
Agency
suitable for USP L3
质量水平
制造商/商品名称
SUPELCOSIL™
参数
≤70 °C temp. limit
400 bar pressure (5801 psi)
技术
HPLC: suitable
长度 × 内径
25 cm × 10 mm
表面积
170 m2/g
基质
silica gel, spherical particle platform
基质活性基团
silica phase
粒径
5 μm
孔径
120 Å pore size
pH值范围
2-7.5
应用
food and beverages
分离技术
hydrophilic interaction (HILIC)
normal phase
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相关类别
一般描述
与正相硅胶柱配合使用的流动相，通常包含己烷和庚烷等烃类溶剂，并混合有相对较少的强极性溶剂。非极性化合物将首先从柱上洗脱，而极性溶质与硅胶表面上的硅烷醇基团具有较强的相互作用。硅胶的极性选择性对于毒枝菌素的分离非常有用。由于硅胶的低运行成本以及相对于反相柱反压较低，通常用于制备色谱中。硅胶是有机化学家最常用的低压制备工具。SUPELCOSIL LC-Si 柱中的未改性硅胶也可分离位置异构体。
法律信息
SUPELCOSIL is a trademark of Sigma-Aldrich Co. LLC
法规信息
新产品
J J Agren et al.
Lipids, 37(6), 613-619 (2002-07-18)
Normal-phase HPLC resolution of sn-1,2(2,3)- and x-1,3-DAG generated by partial Grignard degradation from natural TAG was carried out with both (R)-(-) and (S)-(+)-1-(1-naphthyl)ethylurethane derivatives. The diastereomeric sn-1,2- and sn-2,3-DAG derivatives were resolved using two Supelcosil LC-Si (5 microm, 25 cm
R Lovlin et al.
Journal of chromatography. B, Biomedical applications, 679(1-2), 196-198 (1996-04-26)
The stereospecific HPLC assays reported for ketoprofen (KT) mainly utilize indirect approaches. These assays involve the formation of amide diastereomeric derivatives, which are then separated by chromatography. The advantages of indirect methods include versatility, good sensitivity and cost effectiveness; however
Mohammed Shahid Ali et al.
Journal of pharmaceutical and biomedical analysis, 43(1), 158-167 (2006-08-05)
A new HILIC method has been developed for the simultaneous determination of pseudoephedrine hydrochloride (PSH), diphenhydramine hydrochloride (DPH) and dextromethorphan hydrobromide (DXH) in cough-cold syrup. Mobile phase consists of methanol:water (containing 6.0 g of ammonium acetate and 10 mL of
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