QuEChERS – a Simplified Method of Sample Preparation for Pesticide Analysis In 2003, M Anastassisdes developed a simple way to prepare food samples for pesticide analysis. It's called QuEChERS (pronounced as "Catchers"), an acronym for Quick, Easy, Cheap, Effective, Rugged and Safe. With QuEChERS, you could prepare your samples in multi-class, multi-residue pesticide analysis while saving time and money.
How QuEChERS works?
QuEChERS extraction method is designed for multi-residue pesticide analysis of fruits and vegetables with high water content (80%-95%). Some compounds will interfere the detection of target pesticide, such as chlorophyll, fatty acid, pigment, which could be removed by QuEChERS.
Some QuEChERS methods add buffers during the extraction step. Two most common methods are the European Committee for Standardization (EN 15662) method which applies citrate buffer for extraction and the Association of Analytical Communities (AOAC 2007.01) method using acetic acid buffer.
For low-water content fruits and vegetables, additional water needs to be added to optimize the extraction. For high-fatty content fruits and vegetables, C18E should be added to remove it. For high-pigment content fruits and vegetables, graphicarb should be added.
|Description||Qty||Size||Tube Content||Cat. Number|
|AOAC Method 2007.01,||25||50ml||6 g MgSO4, 1.5 g NaAcetate||QE0520|
|EN Method 15662||25||50ml||4 g MgSO4, 1 g NaCl, 1 g NaCitrate, 0.5 g disodium citrate sesquihydrate||QE0510|
|Original Quechers Method||25||50 ml||4 g MgSO4, 1 g NaCl||QP4300|
|Original QuEChERS Method||25||50 ml||6 g MgSO4, 1.5 g NaCl||QEMSCO50|