Copure Sle

we are the largest exporter and supplier of Copure SLE in Shenzhen, Guangdong, China.
Supported Liquid Extraction (SLE) is a very efficient and economical sample preparation methodology. Extracting analytes from aqueous samples is achieved with a simple two-step protocol, i.e., loading and elution.

In SLE, porous diatomaceous earth with high surface area and low chemical activity is packed as stationary support for liquid-liquid partition. While loading a sample, the aqueous sample solution passes through diatomaceous earth beads, allowed to adsorb via capillary action, forming a thin membrane. Then, a small volume of organic solvent percolates and produces an aqueous-organic interface. Because the mass transfer occurs in extreme short paths, analytes can partition very efficiently between the two phases.