Résultats de la recherche - 22 results
DETERMINATION OF ALLERGENIC FRAGRANCE INGREDIENTS IN FEMININE ABSORBENT HYGIENE PRODUCTS AND LUBRICANTS
A liquid-liquid extraction was used as a sample ‘clean-up’ for lubricants. The sample was then injected using gas chromatography-flame ionization-mass spectrometry (GC- FID- MS). The AHP s were analyzed using a HS- ...
Evaluation of the migration of 15 photo-initiators from cardboard packaging into Tenax(®) using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).
extracted using acetonitrile, followed by analysis on ultra-performance liquid chromatography-tandem mass spectrometry (UPLC- MS / MS). Quantification was carried out using benzophenone-d10 (BP-d10) as ...
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 ...
Determination of steviol glycosides Rebaudioside A in soft drinks by RP-amide liquid chromatography
Diet dietary Dietary intake Dietary-intake drinks EU FNRS food glycosides intake IS liquid chromatography measure method methods NUTRITION plant regulation SAFETY santé study symposium Taste work ...
On-line solid-phase extraction with ultra performance liquid chromatography and tandem mass spectrometry for the detection of nicotine, cotinine and trans-3'-hydroxycotinine in urine to strengthen human biomonitoring and smoking cessation studies.
Liquid cotinine environmental exposure Humans Nicotine Reproducibility of Results Sensitivity and Specificity SMOKING Smoking cessation Solid phase extraction Tandem Mass Spectrometry Tobacco Smoke ...
Identification of potential migrants from printing inks used on paper and board food contact materials
health identification identification of unkowns identify Impact INFORMATION Instrument Instruments International IS liquid chromatography Mass Mass Spectrometry method methods Migration Mode ON Paper ...
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.
Chromatography, High Pressure Liquid Drug Stability Ethylenethiourea Fruit Fungicides, Industrial Linear Models Pesticide residues Reproducibility of Results Sensitivity and Specificity Tandem Mass Spectrometry ...
Rapid analysis of melamine residue in milk, milk products, bakery goods and flour by ultra-performance liquid chromatography/tandem mass spectrometry: From food crisis to accreditation
extraction step with a solution of acetonitrile-water, ultrasound treatment and a liquid-liquid extraction with dichloromethane for fat removal. The purified extract is further diluted before injection on ...
Rapid method for the confirmatory analysis of chrysoidine in aquaculture products by ultra-performance liquid chromatography-tandem mass spectrometry.
in aquaculture products with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC- MS / MS) is presented. Muscle tissues were made alkaline with sodium hydroxide and extracted with ...
Validation of a liquid chromatography-mass spectrometric assay for tacrolimus in peripheral blood mononuclear cells.
per 10 cells. TAC was extracted by a liquid-liquid extraction in basic medium (NH4OH) with 1-chlorobutane, and ascomycin was used as internal standard. After evaporation of the supernatant under ...