QuEChERS
Qcleanup®, salts and dispersive SPE products for QuEChERS treatment
QuEChERS is a sample pretreatment initially developed by Michelangelo Anastassiades and Steven Lehotay is mainly used for the analysis of multiple pesticides into fruits and vegetables. It is the acronym of Quick, Easy, Cheap, Effective, Rugged ans Safe. Three main methods are currently used the original method, the European standardized method EN 15662 and the AOAC official method 2007.01. Each method required an extraction process with salts and a clean-up process with SPE cartridges or by dispersive SPE.
Schematic protocol of sample preparation with QuEChERS method
AFFINISEP supplies all products required to carry out QuEChERS according to AOAC or CEN including dispersive SPE products or SPE cartridges.
Qcleanup® EXTRACTION SALTS
Qcleanup®extraction salts are the three main salts mixtures used in QuEChERS method.
|
QuEChERS methods |
Description |
Pouches / box |
Product reference |
|
Original method |
4g MgSO4 1g NaCl |
50 |
|
|
EN 15662 |
1g Trisodium citrate Dihydrate 0.5g Disodium hydrogencitrate sesquihydrate 1g NaCl and 4g MgSO4 |
50 |
|
|
AOAC 2007.01 |
1.5g Sodium Acetate and 6g MgSO4 |
50 |
Qcleanup®DISPERSIVE SPE PRODUCTS
Qcleanup® products for dispersive SPE are mixtures of powder in 2mL or 15mL centrifugation tubes for main scenarios encountered during pesticide analyses. This mixture contains magnesium sulfate anhydrous (MgSO4), primary secondary amine (PSA), carbon black (CB) or C18.
|
Method
|
Description
|
Nber/box
|
Product reference
|
|
|
For General Fruits & Vegetables
|
||||
|
EN 15662
|
150mg MgSO4 + 25mg PSA
|
100 tubes of 2mL
|
||
|
900mg MgSO4 + 150mg PSA
|
50 tubes of 15mL
|
|||
|
AOAC 2007.01
|
150mg MgSO4 + 50mg PSA
|
100 tubes of 2mL
|
||
|
1200mg MgSO4 + 400mg PSA
|
50 tubes of 15mL
|
|||
|
For Pigmented Fruits & Vegetables
|
||||
|
EN 15662
|
150mg MgSO4 + 25mg PSA + 2.5mg CB
|
100 tubes of 2mL
|
||
|
900mg MgSO4 + 150mg PSA + 15mg CB
|
50 tubes of 15mL
|
|||
|
AOAC 2007.01
|
150mg MgSO4 + 50mg PSA + 50mg CB
|
100 tubes of 2mL
|
||
|
1200mg MgSO4 + 400mg PSA + 400mg CB
|
50 tubes of 15mL
|
|||
|
For Highly Pigmented and Fatty Fruits & Vegetables
|
||||
|
EN 15662
|
150mg MgSO4 + 25mg PSA + 7.5mg CB
|
100 tubes of 2mL
|
||
|
900mg MgSO4 + 150mg PSA + 45mg CB
|
50 tubes of 15mL
|
|||
|
AOAC 2007.01
|
150mg MgSO4 + 50mg PSA + 50mg CB +50mg C18
|
100 tubes of 2mL
|
||
|
1200mg MgSO4 + 400mg PSA + 400mg CB + 400mg C18
|
50 tubes of 15mL
|
|||
|
For Fatty and waxed Fruits & Vegetables
|
||||
|
EN 15662
|
150mg MgSO4 + 25mg PSA + 25mg C18
|
100 tubes of 2mL
|
||
|
900mg MgSO4 + 150mg PSA + 150mg C18
|
50 tubes of 15mL
|
|||
|
AOAC 2007.01
|
150mg MgSO4 + 50mg PSA + 50mg C18
|
100 tubes of 2mL
|
||
|
1200mg MgSO4 + 400mg PSA + 400mg C18
|
50 tubes of 15mL
|
|||
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