Pesticides in Food or Feed

Pesticides are chemical substances, which are used to prevent damage on e.g. arables caused by insects, fungi or nematodes. These are used by farmers and growers in conventional agriculture and horticulture. Consequently, the amount of pesticide residues on food and animal feed are regulated by law in order to protect the consumer and livestock or pets from any possible damage.

Unfortunately in both food and feed, maximum permissible residue limits are found to be regularly exceeded.

This may be due to lack of application of the rules of “Good Agricultural Praxis” for pesticide application, the usage of banned pesticides, or the deliberate evasion of rules. In order to guarantee to the consumer safe and healthy food, comprehensive and strict controls are essential.

For this area of application, especially when looking at compliance with the revised DFG S19  (L 00.00-34), the AOAC methods 984.21, EN 12393 or EN 1528 and other analytical methods, LCTech offers a comprehensive product range. In particular their FREESTYLE system, with its modular design, caters for all aspects of residue analysis at any required level of automation.

FREESTYLE system equipped for sample preparation of pesticides with the GPC and EVAporation module as well as a small selection of sample racks.

Automated Sample Preparation with FREESTYLE

Recommended configuration

  • for  clean-up with GPC column: FREESTYLE with GPC module and corresponding racks for sample processing via GPC (Gel permeation chromatography).
  • for evaporation to a defined endvolume and solvent exchange: additional EVAporation module (can be updated).
  • for the automated QuEChERS method, FREESTYLE is equipped with the SPE module and equipped with the HPLC Direct Injection module for the additional on-line connection to your LC-MS/MS system.

Automated GPC

Automated EVAporation


Flexible, suitable for large series, easy to handle and highly efficient: ideal for automatic processing in the field of pesicide analysis.

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FREESTYLE EVAporation module

The combination of the FREESTYLE GPC with the EVAporation module prepares the samples with or without solvent exchange in GC vials ready for analysis.

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Automated SPE

Fully automated sample preparation


The robotic system FREESTYLE with the SPE module takes over routine tasks in the laboratory: around the clock, unattended and reliably.

FREESTYLE HPLC Direct Injection module

Complete automation from raw extract to chromatogram without manual intermediate steps.

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Automated QuEChERS Method

Semi-automated GPC


A automated QuEChERS method for difficult dried matrices, like tea or spices, and standardmatrices, like fruits or vegetables. This non-dispersive procedure stands out due to its fastness, simplicity, and competitive pricing.

GPC uno

Simple, universal and inexpensive system for gel permeation chromatography. After manual injection, the GPC uno processes the samples automatically.

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Semi-automated GPC for Quadruple Throughput


GPC quattro

System for the gel permeation chromatography for the clean-up of samples. You can run up to four columns in parallel and thus quadruple the sample throughput.

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GPC Columns

With its robustness they they are designed for everyday analysis in laboratories.

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UV Detector

The UV detector can be ideally used in combination with the FREESTYLE GPC.

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