QuEChERS


Quick, easy, cheap, effective, rugged and safe approach for determining pesticide residues in fruit, vegetables and other foods
   Product Detail


  • Determine greater number of pesticides than with standard SPE
  • Easy to use
  • Available in a number of configurations

The QuEChERS method is gaining in popularity around the world as the test of choice for multi-residue pesticide analysis in food and agricultural products. The QuEChERS method offers the advantages of high recoveries, accurate results and high sample throughput, low solvent and glassware usage, less labor and bench space, lower reagent costs. Yet the procedure is robust and rugged.

The QuEChERS method is a two-step process: extraction followed by clean up. The extraction step products use MgSO4 to reduce water in the sample, along with either NaCl (for most applications) or anhydrous sodium acetate for “base-sensitive” compounds (e.g., folpet or captan). The extraction step products are supplied in a 50 mL polypropylene centrifuge tube for convenient extractions.

The QuEChERS clean up step product line contain PSA (primary/secondary amine) for the removal of organic acids and polar pigments among other compounds. Some products couple the PSA with endcapped C18 for the removals of most lipids and sterols, or graphitized carbon black for the removal of sterols and pigments such as chlorophyll. A variety of tube formats and bed weights are available to accommodate large and small sample sizes.
 QuEChERS
 Product# Price  Description  Quantity  
         
 60105-202      -    QuEChERS Clean Up -150 mg Anhydrous Magnesium Sulfate, 50 mg PSA & 50 mg Carbon, 2 mL micro-centrifuge tubes 100   SELECT  
 60105-203      -    QuEChERS Clean Up -150 mg Anhydrous Magnesium Sulfate, 50 mg PSA, 2 mL micro-centrifuge tubes 100   SELECT  
 60105-204      -    QuEChERS Clean Up -150 mg Anhydrous Magnesium Sulfate, 50 mg PSA & 50 mg endcapped C18, 2 mL micro-centrifuge tubes 100   SELECT  
 60105-205      -    QuEChERS Clean Up -900 mg Anhydrous Magnesium Sulfate, 300 mg PSA & 150mg Carbon, 15 mL centrifuge tubes 50   SELECT  
 60105-206      -    QuEChERS Clean Up -900 mg Anhydrous Magnesium Sulfate, 300 mg PSA & 150 mg endcapped C18, 15 mL centrifuge tubes 50   SELECT  
 60105-207      -    QuEChERS Clean Up -400 mg PSA on bottom, 200 mg Graphitized Carbon on top, separated by a Teflon frit, 6 mL columns 30   SELECT  
 60105-208      -    QuEChERS Clean Up -250 mg Graphitized Carbon on top, 500 mg PSA on the bottom, separated by a Teflon frit, 6 mL columns 30   SELECT  
 60105-209      -    QuEChERS Clean Up -500 mg Graphitized Carbon on top, 500 mg PSA on bottom, separated by a Teflon frit, 6 mL columns 30   SELECT  
 60105-210      -    QuEChERS Extraction - 6 g Anhydrous Magnesium Sulfate, 1.5 g Anhydrous Sodium Acetate 50 mL polypropylene centrifuge tubes 250   SELECT  
 60105-211      -    QuEChERS Extraction - 4 g Anhydrous Magnesium Sulfate, 1 g NaCl, 50 mL polypropylene centrifuge tubes 50   SELECT  
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