ProElut™ QuEChERS Kits
In 2003, USDA scientists developed a groundbreaking sample preparation method for multi-pesticide residue analysis in a wide variety of food and agricultural products. The QuEChERS (pronounced “catchers“) procedure entails a number of simple processing steps and is thus fast and easy to perform with little susceptibility to errors. 

QuEChERS provides high recoveries for a very broad scope of pesticides belonging to various chemical classes and delivers the final extract in acetonitrile, thereby giving full flexibility in the choice of the determinative analysis technique. Direct connection with liquid and gas chromatography is possible.

ProElut™ QuEChERS is an innovative sample preparation method for multi-pesticide residue analysis, standing for Quick, Easy, Cheap, Effective, Rugged and Safe. Now, QuEChERS has become a standard approach for the determination of pesticide residues in fruits and vegetables across the world. In addition, different fields have started to use this method. Application is developed in a number of different areas, such as meat, blood, wine, and even the antibiotics in soil, drugs, drug abuse, and other contaminants detected. Dikma ProElut™ QuEChERS kits contain extraction and clean-up kits which support AOAC Method 2007.01 and EN Method 15662.

Features of ProElut™ QuEChERS Kits
• Fast, simple sample preparation for multi-residue pesticide analysis
• Wide selection, support AOAC 2007.01 and EN 15662 methods
• Provide guidance to help you choose the right products
• Certified extraction salts and sorbents
• Individually sealed packages for enhanced protection and storage stability

ProElut™ QuEChERS versus Traditional SPE
The ProElut™ QuEChERS method has almost the same analysis results as traditional SPE, with fewer analytical steps, lower solvent consumption, greater accuracy, wider applicability, and higher sample throughput.

ProElut™ QuEChERS Steps

Recommended Standard Operation Procedure for ProElut™ QuEChERS Kit

 ProElut™ QuEChERS Kits Selection Guide

Step 1: Selected Extraction Salts Kit
Generally, we add solvent and buffer salts to the pulverized fruit or vegetable sample to extract the pesticides of interest into the organic layer. However, adding a food sample with a high percentage of water directly to the salts may create an exothermic reaction that can affect your analyte recoveries. With the separate packaging of ProElut™ QuEChERS extraction salts (pre-weighed, water free), you can add buffered extraction salt after adding solvent.

Step 2 : Selected Dispersive SPE Kit



	Sample Type	Method	2 mL Clean-up Tube	Price	15 mL Clean-up Tube	Price
	General fruits and vegetables  Major interferences: organic acids, carbohydrates, phenols	AOAC	50 mg PSA 150 mg MgSO4 Cat#64501	$123	400 mg PSA 1200 mg MgSO4 Cat#64502	$118
		EN	25 mg PSA 150 mg MgSO4 Cat#64503	118	150 mg PSA  900 mg MgSO4 Cat#64504	113
	Fruits and vegetables with fats and waxes   Major interferences: lipids, sterols, organic acids, carbohydrates, phenols	AOAC	50 mg PSA 50 mg C18 150 mg MgSO4 Cat#64505	128	400 mg PSA 400 mg C18 1200 mg MgSO4 Cat#64506	128
		EN	25 mg PSA 25 mg C18 150 mg MgSO4 Cat#64507	123	150 mg PSA 150 mg C18 900 mg MgSO4 Cat#64508	118
	Highly pigmented fruits and vegetables   Major interferences: chlorophyll, carotenoids, organic acids, carbohydrates, phenols. Not for use with planar pesticides	AOAC	50 mg PSA 50 mg Carb 150 mg MgSO4 Cat#64509	172	400 mg PSA 400 mg Carb 1200 mg MgSO4 Cat#64510	215
		EN	25 mg PSA 7.5 mg Carb 150 mg MgSO4 Cat#64511	158	150 mg PSA 45 mg Carb 900 mg MgSO4 Cat#64512	143
	Fruits and vegetables with pigments and fats   Major interferences: chlorophyll, carotenoids, lipids, organic acids, carbohydrates, phenols. Not for use with planar pesticides	AOAC	50 mg PSA 50 mg C18 50 mg Carb 150 mg MgSO4 Cat#64513	192	400 mg PSA 400 mg C18 400 mg Carb 1200 mg MgSO4 Cat#64514	238

 Note: Sorbent listed in the table has been pre-weighed and placed in centrifuge tube
--PSA: Primary-secondary amine silica bonded sorbent
--C18: Octadecyl silica bonded sorbent
--Carb: Graphitized carbon black.
Tips: For different matrix food samples, we recommend an added amount of PSA and MgSO₄ as follows: