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- Accessories CHROMABOND® QuEchERS
- Accessories for chromabond vacuum chamber
- Accessories for CHROMABOND®
- Adapters for CHROMABOND® columns
- CHROMABOND® Alox A / Alox N / Alox B
- CHROMABOND® C18
- CHROMABOND® C18 ec
- CHROMABOND® C18 Hydra
- CHROMABOND® C6H5
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- CHROMABOND® Na2SO4/Florisil®
- CHROMABOND® NAN
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- CHROMABOND® NH2/C18
- CHROMABOND® OH (Diol)
- CHROMABOND® PA
- CHROMABOND® PS-OH- / PS-H+
- CHROMABOND® PSA
- CHROMABOND® QuEChERS extraction buffer mixes / clean-up mixes
- CHROMABOND® SA
- CHROMABOND® SA/SiOH
- CHROMABOND® SB
- CHROMABOND® SiOH
- CHROMABOND® SiOH-H2SO4/SA
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- CHROMAFIX® C18
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Accessories CHROMABOND® QuEchERS
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.
Empty PP centrifuge tube with screw cap, 50 ml, without QuEchERS mixtures.
