Scienhome's self-developed products such as the scienhome guard cartridge and guard column components have gained widespread recognition and support from customers over years of sales. Through continuous improvement and refinement over a long period, Scienhome has developed products to meet the needs of a broad user base.

In HPLC systems, it cannot be guaranteed that the injected sample will be completely eluted. Although the injection volume is small, a portion of the sample will always remain at the column head, which over time will cause the column head to fail. The various reagents used may also contain insoluble or impure substances. Most insoluble substances can be removed by filtering the mobile phase through a frit or membrane filter, but fine particles can pass through the filter. Additionally, after the mobile phase is prepared, there is a possibility of insoluble or impure substances entering from the air, containers, or human contact. Depending on the analytical purpose, these insoluble or impure substances can contaminate the column, cause blockages, or adversely affect the analysis. Installing an analytical guard column before the chromatographic column can prevent these issues and protect the column. This Scienhome guard column component combines the strength of stainless steel with the convenience of a PEEK pre-packed cartridge. Placing a short guard column with the same packing material as the column between the injection valve and the chromatographic column will extend the column's lifespan and ensure reproducible results.

In liquid chromatography (HPLC) experiments, chromatographic columns from brands such as Agilent, Shimadzu, Waters, and Thermo are commonly used, and they are expensive. To extend the lifespan of these columns, our company supplies a set of C18 guard column components that combine the strength of stainless steel with the convenience of a PEEK pre-packed cartridge. Placing a short guard column with the same packing material as the column between the injection valve and the chromatographic column ensures reproducible results, effectively prevents residue buildup at the column head, and extends the lifespan of the HPLC column. The role of the analytical guard column is to pre-adsorb substances that would be firmly adsorbed by the chromatographic column and cannot be washed away by the mobile phase. The packing material for the analytical guard column is typically the same as that of the chromatographic column, as damage to the analytical column in most cases only affects a small portion of the packing material at the inlet side.

Part No      Desc.

600220      Guard Column Component (Includes C18/3 Cartridges)

600230      Guard Column Component (Includes C8/3 Cartridges)

600240      Guard Column Component (Includes NH2/3 Cartridges)

600250      Guard Column Component (Includes Sil/3 Cartridges)

600260      Guard Column Component (Includes Phen/3 Cartridges)

600210      Guard Column Component (Includes CN/3 Cartridges)

600221      Guard Column Holder

612111      Cartridge (10/Bag), C-18

622111      Cartridge (10/Bag), C-8

632111      Cartridge (10/Bag), Silica

642111      Cartridge (10/Bag), NH2

652111      Cartridge (10/Bag), CN

662111      Cartridge (10/Bag), Phen