Extraction kits Copure® QuEChERS
Extraction and clean-up mixtures for sample preparation in the pesticide analysis of vegetable foodstuffs according to EN 15662 using GC/MS or LC/MS after acetonitrile extraction and purification using the dispersive SPE-QuEChERS method.
The samples are first extracted with Mix A. Purification is done with one of the following mixtures:
- Mix B (Clean-up mixture for fruits and vegetables with low fat content, e.g. apples, strawberries)
- Mix C (Clean-up mixture for fruits and vegetables with high fat content, containing oil/wax, e.g. avocados)
- Mix D (Clean-up mixture for moderately chlorophyll/carotenoid-containing fruits and vegetables, e.g. carrots, salad)
- Mix E (Clean-up mixture for fruits and vegetables with high chlorophyll/carotenoid content, e.g. sweet peppers, spinach)
If required, add ceramic homogenising beads for better mixing.
- Mix A contains a bag with the required amount of mixture and a 50 ml empty tube
- Mix B, C, D and E are pre-weighed into a 15 ml tube
Toote variatsioonid
| Composition | Type | Volume ml | Catalog number | PK | Kogus | |
|---|---|---|---|---|---|---|
| 0.15 g PSA, 0.045 g GCB,0.9 g MgSO4 | Mix E | 15 | 4.669 298 | 50.00 | ||
| 0.15 g PSA, 0.15 g C18,0.9 g MgSO4 | Mix C | 15 | 4.669 296 | 50.00 | ||
| 0.15 g PSA, 0.015 g GCB,0.9 g MgSO4 | Mix D | 15 | 4.669 297 | 50.00 | ||
| 4 g MgSO4,1 g NaCl,1 g Trisodium citrate,0.5 g Disodium citrate | Mix A | 50 | 4.669 294 | 50.00 | ||
| - | Ceramic homogenising beads | - | 4.669 299 | 100.00 | ||
| 0.15 g PSA,0.9 g MgSO4 | Mix B | 15 | 4.669 295 | 50.00 |
