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Tubos Q-sep SPE Quechers

Restek

• Fast, simple sample extraction and cleanup using dSPE.
• Fourfold increases in sample throughput.
• Fourfold decreases in material cost.
• Convenient, ready to use centrifuge tubes with ultra pure, preweighed adsorbent mixes.

Quick, Easy, Cheap, Effective, Rugged, and Safe, the QuEChERS ("catchers") method, developed by the USDA Eastern Regional Research Center1, has become very popular for extraction and clean-up of pesticide residue samples. Our products are available in three centrifuge tube sizes to meet the needs of both extraction and cleanup of a wide variety of sample matrices following various methods. 

The researchers developed a simple two-step procedure. First, the homogenized samples are extracted and partitioned, using an organic solvent and salt solution. Then, the supernatant is further extracted and cleaned, using a dispersive SPE technique. Multiple adsorbents are placed in a centrifuge tube, along with the 1mL of organic solvent and the extracted residues partitioned from step 1. The contents are thoroughly mixed, then centrifuged, producing a clean extract ready for a variety of GC or HPLC analytical techniques.2 Validation and proficiency data for the QuEChERS method are available for a wide variety of pesticides in several common food matrices at www.quechers.com
Multiple sorbents are used to extract different types of interferences.

MgSO4 removes excess water
PSA* removes sugars, fatty acids, organic acids, and anthocyanine pigments
C18 removes nonpolar interferences
GCB* removes pigments, sterols, and nonpolar interferences



Tubos Q-sep SPE Quechers

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ReferenciaDescripciónMaterialMétodosPk
RS-26213
Tubo de Centriguga 50mL, Resprep Q110
4g MgSO4, 1g NaCl, 1g trisodium citrate dihydrate, 0.5g disodium hydrogencitrate sesquihydrate
Mini-Multiresiduo, Europea EN-15662
50
RS-26214
Tubo de Centriguga 50mL, Resprep Q150
6g MgSO4, 1.5g NaOAc
AOAC 2007.1
50
RS-26227
Tubo de Centriguga 50mL, vacío

Mini-Multiresiduo, Europea EN-15662, AOAC 2007.1
25
RS-26215
Tubo de Micro-Centriguga 2mL Resprep Q210
150mg MgSO4, 25mg PSA
Mini-Multiresiduo, Europea EN-15662
100
RS-26216
Tubo de Micro-Centriguga 2mL Resprep Q211
150mg MgSO4, 25mg PSA, 25mg C18
Mini-Multiresiduo
100
RS-26217
Tubo de Micro-Centriguga 2mL Resprep Q212
150mg MgSO4, 2.5mg PSA, 25mg GCB
Mini-Multiresiduo, Europea EN-15662
100
RS-26218
Tubo de Micro-Centriguga 2mL Resprep Q213
150mg MgSO4, 7.5mg PSA, 25mg GCB
Mini-Multiresiduo, Europea EN-15662
100
RS-26124
Tubo de Micro-Centriguga 2mL Resprep Q250
150mg MgSO4, 50mg PSA
AOAC 2007.1
100
RS-26125
Tubo de Micro-Centriguga 2mL Resprep Q251
150mg MgSO4, 50mg PSA, 50mg C18
AOAC 2007.1
100
RS-26123
Tubo de Micro-Centriguga 2mL Resprep Q253
150mg MgSO4, 50mg PSA, 50mg GCB

100
RS-26219
Tubo de Micro-Centriguga 2mL Resprep Q252
150mg MgSO4, 50mg PSA, 50mg C18, 50mg GCB
AOAC 2007.1
100
RS-26220
Tubo de Centrifuga 15mL Resprep Q350
1200mg MgSO4, 400mg PSA
AOAC 2007.1
50
RS-26221
Tubo de Centrifuga 15mL Resprep Q351
1200mg MgSO4, 400mg PSA, 400mg C18
AOAC 2007.1
50
RS-26222
Tubo de Centrifuga 15mL Resprep Q352
1200mg MgSO4, 400mg PSA, 400mg C18, 400mg GCB
AOAC 2007.1
50
RS-26223
Tubo de Centrifuga 15mL Resprep Q370
900mg MgSO4, 150mg PSA
Europea EN-15662
50
RS-26224
Tubo de Centrifuga 15mL Resprep Q371
900mg MgSO4, 150mg PSA, 15mg GCB
Europea EN-15662
50
RS-26225
Tubo de Centrifuga 15mL Resprep Q372
900mg MgSO4, 150mg PSA, 45mg GCB
Europea EN-15662
50
RS-26226
Tubo de Centrifuga 15mL Resprep Q373
900mg MgSO4, 150mg PSA, 150mg C18

50
RS-26126
Tubo de Centrifuga 15mL Resprep Q374
900mg MgSO4, 150mg PSA, 150mg CCB

50