Macherey-Nagel Chromabond® Diamino Adsorbent; Weight 20 g
Item No.
4003689
QuEChERS adsorbent CHROMABOND® Diamino / PSA 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. For optimising the extraction of pH-dependent compounds; for minimising decomposition of sensitive substances and for broadending the matrix spectrum; different modifications of the QuEChERS method have been elaborated. Special silica phase for determination of pesticides in food samples with primary and secondary amine functions (PSA). Particle size 45 µm; specific surface 500 m2/g; pH-stability from pH 2 to 8.Weight 20 g
Additional Details
Pack Size | 20pk |
Weight | 0.14 |
Weight Unit | Kg |
Tariff Code | 3822 190090 |
Country of Origin | Germany |
Additional Details
Pack Size | 20pk |
Weight | 0.14 |
Weight Unit | Kg |
Tariff Code | 3822 190090 |
Country of Origin | Germany |
Description
Weight: 20g |