Thermo Fisher HyperSep Dispersive SPE Products
- 公司名稱 HUAMING TECHNOLOGY (HK) LIMITED
- 品牌 Thermofisher Scientific/賽默飛世爾
- 型號
- 產(chǎn)地 U.S.A
- 廠商性質(zhì) 代理商
- 更新時間 2016/3/14 15:45:44
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QuEChERS Dispersive SPE Product Selection
The QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) technique is increasingly becoming the technique of choice for extraction and clean-up of pesticide residues. It was developed by the USDA
Eastern Regional Research Center. Please refer to the information below for selection of the most
appropriate QuEChERS product for multi-residue pesticide analysis.
There are four variations of the QuEChERS method currently being used:
- The original QuEChERS method – this was introduced in 2003, using sodium chloride to enhance extraction
- Dispersive AOAC 2007.01 – this uses sodium acetate as a buffer, replacing sodium chloride
- The dual phase variation – this method introduces the use of PSA and GCB to remove high levels of chlorophyll and plant sterols in the nal extract without the loss of planar pesticides (polar aromatics) using an acetone:toluene solvent mix (3:1)
- The European version is similar to the AOAC method, except the extraction uses sodium chloride, sodium citrate dihydrate and disodium citrate sesquihydrate instead of sodium acetate
Sorbents used in QuEChERS Methods | ||
Material | Purpose | Typical Matrices |
Magnesium Sulfate | Removal of excess water | Fruits, vegetables |
PSA (Primary/Secondary Amine) | Removal of organic acids, fatty acids, sugars | Fruits |
C18 | Removal of lipids and sterols | Milk. meat. fish |
GCB (Graphatized Carbon Black) | Removal of pigments and sterols | W ine, green vegetables, carrots |
Product Selection | ||
Matrix Type | Examples | Sorbent Requirements |
Magnesium Sulfate | Removal of excess water | Fruits, vegetables |
PSA (Primary/Secondary Amine) | Removal of organic acids, fatty acids, sugars | Fruits |
C18 | Removal of lipids and sterols | Milk, meat,fish |
GCB(Graphatized Carbon Black) | Removal of pigments and sterols | Wine, green vegetables, carrots |
Step | Description | Capacity (mL) | Cat. No. | Quantity |
Original Method | ||||
Extraction | 4000mg magnesium sulfate, 1000mg sodium chloride | 50 | 60105-211 | 250 Pack |
Clean-Up | 150mg magnesium sulfate, 50mg PSA, 50mg C18 | 2 | 60105-204 | 100 Pack |
150mg magnesium sulfate, 50mg PSA, 50mg C18, 50mg GCB | 2 | 60105-223 | 100 Pack | |
1200mg magnesium sulfate, 400mg PSA, 400mg C18 | 15 | 60105-225 | 50 Pack | |
AOAC 2007.1 | ||||
Extraction | 6000g magnesium sulfate, 400mg PSA, 400mg C18, 400mg GCB | 50 | 60105-210 | 250 Pack |
Clean-Up | 150mg magnesium sulfate, 50mg PSA | 2 | 60105-203 | 100 Pack |
150mg magnesium sulfate, 50mg PSA, 50mg C18 | 2 | 60105-204 | 100 Pack | |
150mg magnesium sulfate, 50mg PSA, 50mg C18, 50mg GCB | 2 | 60105-223 | 100 Pack | |
900mg magnesium sulfate, 300mg PSA, 150mg GCB | 15 | 60105-205 | 50 Pack | |
900mg magnesium sulfate, 300mg PSA, 150mg C18 | 15 | 60105-206 | 50 Pack | |
1200mg magnesium sulfate, 400mg PSA | 15 | 60105-224 | 50 Pack | |
1200mg magnesium sulfate, 400mg PSA, 400mg C18 | 15 | 60105-225 | 50 Pack | |
1200mg magnesium sulfate, 400mg PSA, 400mg C18, 400mg GCB | 15 | 60105-226 | 50 Pack | |
European EN15662 | ||||
Extraction | 6000g magnesium sulfate, 1500mg sodium chloride, 1500mg sodium citrate tribasic dihydrate, 750mg sodium citrate dibasic sesquihydrate | 50 | 60105-212 | 250 Pack |
4000mg magnesium sulfate, 1000mg sodium chloride, 1000mg sodium citrate tribasic dihydrate, 500mg sodium citrate dibasic sesquihydrate | 50 | 60105-216 | 250 Pack | |
Clean-Up | 150mg magnesium sulfate, 25mg PSA | 2 | 60105-219 | 100 Pack |
150mg magnesium sulfate, 25mg PSA, 2.5mg GCB | 2 | 60105-221 | 100 Pack | |
150mg magnesium sulfate, 25mg PSA, 7.5mg GCB | 2 | 60105-222 | 100 Pack | |
900mg magnesium sulfate, 150mg PSA | 15 | 60105-215 | 50 Pack | |
900mg magnesium sulfate, 150mg PSA, 45mg GCB | 15 | 60105-217 | 50 Pack | |
900mg magnesium sulfate, 150mg PSA, 15mg GCB | 15 | 60105-218 | 50 Pack | |
900mg magnesium sulfate, 150mg PSA, 150mg C18 | 15 | 60105-227 | 50 Pack | |
Dual Phase Method | ||||
200mg GCB on top, 400mg PSA on bottom, separated by a frit | 6 | 60105-207 | 30 Pack | |
250mg GCB on top, 500mg PSA on bottom, separated by a frit | 6 | 60105-208 | 30 Pack | |
500mg GCB on top, 500mg PSA on bottom, separated by a frit | 6 | 60105-209 | 30 Pack |