LCTech columns are ready-to-use. DEXTech 16, DEXTech Pure, DEXTech Plus and DEXTech Heat are designed with a 3-column setup using an acidic silica column (pos. 1), an aluminium-oxide or florisil column (pos. 2), or a carbon column (pos. 3). Simply click in the respective columns in the column tower- “just click it”. Afterwards a patented mechanism of the system automatically locks the tower. No screw connections, no tools, no other manual steps. From sample to sample – fast, flexible, effortless.
Variety of columns:
Position 1: Universal or SMART Column
Depending on the individual requirements, matrix or desired method, each dioxin-system of the DEXTech product family can be equipped with different ready-to-use column setups:
- The fat can be degraded by the acidic silica gel, which is impregnated with concentrated sulphuric acid. The user has visual control due to the glass material of the column.
- The loading capacity of the Universal column is with 5 g of fat very high, and is essential in order to achieve the low detection limits.
Due to a special silver nitrate layer, the Universal column is suitable for all kind of matrices, even for those containing Sulphur.
- For samples with content of up to 1.5 g fat or a small matrix load
Advantage: Significantly reduced amount of solvent as well as the processing time
Easy change between Universal and SMART column by using the adapter.
Position 2: Aluminium-Oxide or Florisil Column
- Suitable for DEXTech 16, DEXTech Pure, DEXTech Plus and DEXTech Heat
- Depending on amount and composition of target fractions the Florisil column can also be used at this position in DEXTech Plus.
Position 3: Carbon Column
- Reusable up to 10 times: this reduces the already low column cost
- Advantage for DEXTech Pure, DEXTech 16 and DEXTech Heat:Cost saving for “pure” PCB analysis, because the carbon column is not needed and replaced by a dummy column.