Description of Empty Flash Columns
Available in size from 4gram to 330gram, all cartridge made from medical grade PP material and with standard Luer lock connection fittings, it can make sure fitting with most of the flash systems.
Hawach Empty flash columns (solid load cartridges ) are perfect for application of insoluble sample purification.
Advantage of Empty Flash Columns
Reusable flash column between batches
Quickly remove solvents from solid load cartridges
The available prepacked or empty column to different customer need
The column can be compatible with all normal and reversed-phase solvents.
Loading insertion rod (packing tool of empty columns) available
Full range of column size available for a different need, purifying from milligrams to several grams
The column can help realize perfect peak shape and performance for both acidic and basic compounds
HPLC-UV Test of Extractable Species for Empty Flash PP Cartridge and PE Frit
Flash column is commonly used in lab separation of mixture species, the most important properties for the flash column are separation efficiency and low extraction blank level, this experiment is aimed to confirm that Hawach empty flash PP Cartridge and PE frit have no extractable species which could be tested by HPLC-UV.
Fill the empty flash column with 6 ml HPLC grade methanol, methanol/dichloromethane(3:1) mixture solution, and petroleum ether/ethyl acetate(1:1) separately for 24 h, and then test the extraction solvents by HPLC-UV.
Column : C18:250*4.6 mm
Flow rate: 1mL/min
Wavelength: 220 nm
Injection Volume: 20 μL
Analysis Time: 45 min
Mobile Phases: A) Acetonitrile B) Water
Hold 60% A for 10 min
60% to 95% A in 20 min
95% to 100% A in 10 min
As shown in the figure below, we can see that all the curve of extraction solvents has the same shape with that of the blank solvents, and there is no other peaks appeared, meaning that no extractable impurities of Hawach flash column.