The conventional method of determining pesticides in fats and oils (§64 LFGB-Method Collection) L00.00-34) uses a complicated procedure to separate the pesticide molecules from the fat molecules. It is known as GPC (Gel Permeation Chromatography). After that, the large volume of solvent is reduced in a vacuum to less than one milliliter. This method was developed in the 1980s and is still in use today in residue laboratories.
PICA Method Conventional Method
The time needed for the measurements that follow in the latest measurement system UHPLC-MSMS and GC-MSMS can also be reduced by optimizing the measurement parameters.
With this procedure we can offer an express screening analysis for pesticides in fats and oils (same day, one day, two days).
Our procedure is validated for an oil mixed matrix made up of raw soy bean, olive, sunflower seed and sesame oils. The quality and correctness of the method have been 100% confirmed in annual FAPAS ring tests since it was developed in 2015 (see table). The method has has also been successfully tested with fish oils and other animal fats such as milk fat.
|
ring test/ compound |
rape seed oil-FAPAS_05107_09/10-2015 |
palm oil-FAPAS_04/06-2016 |
|
Aldrin |
√ |
|
|
gamma-HCH (Lindan) |
√ |
|
|
Nirofen |
√ |
|
|
PCB 153 |
√ |
|
|
p,p´-DDE |
√ |
|
|
Cypermethrin |
√ |
|
|
Endosulfan-alpha |
√ |
|
|
Ethylparathion |
√ |
|
|
Lambda-Cyhalothrine |
√ |
|
|
p,p´-DDT |
√ |
|
|
Erfolgsquote (%) |
100 |
100 |
This procedure has been accredited at PICA since 2017 (DakkS).
Please contact us. We would be glad to inform you.
Contact: Dr. Anna Romanotto (anna.romanotto@pica-berlin.de) or Tel.: +4930 255660062