Pesticide analysis is an important component, especially in food monitoring, where an enormous number of samples must be analysed for pesticide residues every day. There are various methods that can be used for this purpose, depending on the application. Despite the widespread use of QuEChERS, gel permeation chromatography (GPC) still plays an important role in sample purification, especially in the analysis of fatty matrices such as fish oil, where other methods such as dispersive QuEChERS do not work adequately.
One advantage of GPC is that employees do not need any special expert knowledge. The methodology is established worldwide and can be implemented easily thanks to set regulations such as the expanded revised version of DFG method S19 (L 00.00-34). This facilitates implementation and ensures that the analysis is results-oriented and reliable.
The column is firmly connected to the arm, therefore sample and solvent can be dosed precisely and at a constant flow rate via the SPE column with positive pressure using a syringe pump. Drying is also carried out via positive pressure with nitrogen.
Double-walled with two independent lines inside the needle. Spray holes are arranged 360° around the needle:
More than 40 different racks (also temperature-controlled) can be freely combined with the FREESTYLE system.
Maximum flexibility for your applications, just as you need it, also for IAC columns. Only one rack type is needed for all columns in standard formats up to 15 mL. Adaptation is done by adapters. The racks are hooked in easily and transferred to the software with just a few mouse clicks.
Fluidics management is a central component of the robotic system, where precise dosing and control of fluids is essential:
The EVAporation module achieves reliable and precise concentration of samples: