DFG S19 Method (L-00.00.34)

The method S19 by the DFG (Deutsche Forschungsgemeinschaft, German Research Foundation) is part of the offical collection of analytical methods following §64 LFGB (Lebens- und Futtermittelgesetzbuch, German food and feed law). It describes the complete analysis of pesticides and PCB in all kinds of food. It can also be transferred to other matrices like e.g. feed.

The method can be used for the detection of a broad range of nonpolar to medium polar pesticides. These can be halogen-, nitrogen- or phosphorus-containing pesticides and pyrethroids. PCB can be detected parallelly, if needed.

The method has a long history and dates back to the work of Dr. Specht and his team in the late seventies. Meanwhile it was modified several times. In 1995 a mixture of ethylacetate and cyclohexane replaced dichlormethane as extracting agent and GPC eluent. In 1999 the extended and revised modular DFG S19 was published. In 2007 a detection method which is not based on GC, the LC-MS/MS, was introduced as detection modul.

The method is arranged in modules and separated into the parts extraction (E1 to E9), GPC, minisilica cleaning-up (C1 to C2) and the detection modules (D1 to D5). A central step, which all extracts have to run through, is the GPC.

LCTech offers GPC systems, which can perfectly be used for the DFG S19 – with different levels of automation, according to your laboratory requirements. Or ask us directly for FREESTYLE EVAporation.

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