- Did you mean
- clear up
Search results - 9 results
Simultaneous Detection and Quantification of Aflatoxin M1, Eight Microcystin Congeners and Nodularin in Dairy Milk by LC-MS/MS
extracted with methanol 80%, followed by an SPE clean-up step before LC- MS / MS analysis. The LOQ was fixed at 1 µg/L for the nine cyanotoxins and 0.05 µg/L for AFM1. Recoveries were measured between 82.67% ...
Optimization and validation of an analytical method for the quantification of short- and medium-chained chlorinated paraffins in food by gas chromatography-mass spectrometry
ECNI / MS). A dispersive solid phase extraction (dSPE) method was optimized for fish, meat, oil, milk and whole-grain cereal followed by clean-up with concentrated sulfuric acid and acid silica. ...
Determination of caramel colorants' by-products in liquid foods by ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).
the concentration range expected in the type of foods targeted. For the determination of the imidazole substitutes (THI, 2- and 4- MI), a sample enrichment and clean-up step by strong cation solid-phase ...
Multi-dye residue analysis of triarylmethane, xanthene, phenothiazine and phenoxazine dyes in fish tissues by ultra-performance liquid chromatography-tandem mass spectrometry.
ultra-performance liquid chromatography-tandem mass spectrometry. Samples were extracted with acetonitrile, followed by an oxidation step using 2,3-dichloro-5,6-dicyanobenzoquinone. Further clean-up was performed by ...
A rapid and environmental friendly determination of the dithiocarbamate metabolites ethylenethiourea and propylenethiourea in fruit and vegetables by ultra high performance liquid chromatography tandem mass spectrometry.
Thiocarbamates Thiourea Vegetables Abstract: Previous published methods for the analysis of ETU and PTU are time-consuming and furthermore use dichloromethane (DCM) for extraction or clean-up. This study details ...
A modified sample preparation for acrylamide determination in cocoa and coffee products
methods, Volume 1, Issue 1, Number 55, p.49- 55 (2008) ISBN: 1936-9751 Keywords: Acrylamide Analyses AS Clean up Cocoa Combination Complex Matrices detection i identification Ion IS Laboratories LC-MS/MS ...
Pyrrolizidine alkaloids in herbs and related foodstuffs (PASHERBS)
food supplements. The sample preparation protocols were comprised of an acidic solid-liquid extraction of the analytes followed by SPE clean-up to avoid loss of sensitivity due to matrix effect. Several ...
Food contamination with pyrrolizidine alkaloids: the expected and the unexpected
infusions, and food supplements. The sample preparation protocols were comprised of an acidic solid-liquid extraction of the analytes followed by SPE clean-up to avoid loss of sensitivity due to matrix effect. ...
UHPLC-MS/MS methods for the quantification of pyrrolizidine alkaloids in a wide range of food matrices and exposure assessment for the Belgian population
and food supplements. The sample preparation protocols were comprised of an acidic solid-liquid extraction of the analytes followed by SPE clean-up to avoid loss of sensitivity due to matrix effect. ...