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CHROMABOND® QuEChERS extraction buffer mixes/clean-up mixes Description Mix I Citrat-Extraction-Mix Capacity 15 ml Compo


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CHROMABOND® QuEChERS extraction buffer mixes/clean-up mixes Description Mix I Citrat-Extraction-Mix Capacity 15 ml Compo
CHROMABOND® QuEChERS extraction buffer mixes/clean-up mixes Description Mix I Citrat-Extraction-Mix Capacity 15 ml Compo
Item number:
     163IE-4003824
Manufacturer:
     Macherey-Nagel
Manufacturer no.:
     730970
EAN/GTIN:
     n/a
Safety data sheet
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SPE,phases
CHROMABOND® QuEChERS extraction buffer mixes / clean-up mixes
QuEChERS method and pre-mixes
Within a few years after its devleopment by Anastassiades et al. the QuEChERS method has gained a leading position for determination of pesticide residues in food by GC-MS or LC-MS allowing rapid and cheap clean-up of strong matrix-contaminated samples.
Standard clean-up of food samples
10 g sample are homogenised with 10 ml acetonitrile. After adding the internal standard the sample is shaken with 4 g MgSO4 and 1 g NaCI and afterwards centrifuged. 1 ml of the supernantant is spiked with 25 mg CHROMABOND® Diamino and 150 mg MgSO4 and shaken again. After centrifugation the supernatant is injected into the GC/MS.
Extraction mixtures for sample preparation for determination of pesticides in food samples.

MACHEREY-NAGEL offers a number of individually weighed and pre-mixed buffers and extraction mixtures, specially composed for different sample matrices.
Mix I and Mix II are extraction mixtures, Mix III to Mix VI are clean-up mixtures.

The food samples will be extracted with either Mix I or Mix II.
Afterwards they will be purified with one of the following mixtures:
-Mix III (samples with low fat content; e.g. apples, strawberries),
-Mix IV (moderate content of chlorophyll and carotinoids; e. g. carrots, lettuce),
-Mix V (high content of chlorophyll and carotinoids; e. g. bell peppers, spinach),
-Mix VI (high fat content; e. g. avocados).

Every mix is prepacked in a 15 ml centrifuge tube. Pack of 50 pieces.

Description Mix I Citrat-Extraction-Mix
Capacity 15 ml
Composition 4g MgSO4, 1g NaCl, 0.5g Na2H citrate 1.5 H2O, 1g Na3 citrate, 2 H2O
An overview of the conditions1
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Price
from € 117.86*
  
Price is valid from 10 packs
1 pack contains 50 pieces (from € 2.3572* per piece)
Select conditions yourself
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1 pack
€ 126.53*
€ 155.63
per pack
from 2 packs
€ 123.14*
€ 151.46
per pack
from 5 packs
€ 121.24*
€ 149.13
per pack
from 10 packs
€ 117.86*
€ 144.97
per pack
* Prices with asterisk are net prices excl. statutory VAT.
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