HPLC Guard Column Unix SEC-200, 200 Å, 1.8 µm, 4.6 x 20 mm

Utilizing proprietary surface technologies, Unix SEC-200 phase is made of uniform, hydrophilic, and neutral nanometer thick films chemically bonded to high purity and mechanically stabilized silica with the particle size of 1.8 µm. The combination of small particle size and large pore volume of Unix SEC-200 renders the highest separation efficiency and resolution of analytes. The well-controlled surface chemistry results in excellent lot-to-lot reproducibility. Our unique bonding chemistry, coupled with the maximized bonding density, allows Unix SEC-200 to provide high stability and negligible non-specific interactions. Typical applications for Unix SEC-200 columns include separation and analysis of biological molecules and water-soluble polymers.