Search results - 93 results
Determination of benzene in different food matrices by distillation and isotope dilution HS-GC/MS
headspace GC / MS. Based on the results of the DOE, a versatile method for the extraction of benzene from all kind of food commodities was developed. The method which consisted of distillation and isotope ...
Analysis of benzophenone and 4-methylbenzophenone in breakfast cereals using ultrasonic extraction in combination with gas chromatography-tandem mass spectrometry (GC-MS(n)).
a mixture of dichloromethane and acetonitrile (1:1), followed by a clean-up of the extract using solid phase extraction with a silica cartridge. Finally, the extract was analysed by GC- MS (n). ...
Determination of benzene in different food matrixes by distillation and isotope dilution HS-GC/MS
Publication Type: Scientific poster, presentation or proceeding Authors: R. Medeiros Vinci; Michael Canfyn; De Schaetzen,T.; Ilse Van Overmeire; De Meulenaer,B.; Joris Van Loco Source: 4th international Symposium in Recent Advances in Food Analysis (RAFA) ...
Accuracy and reproducibility of automated estradiol-17beta and progesterone assays using native serum samples: results obtained in the Belgian external assessment scheme.
frequently used in Belgium for estradiol-17beta (E(2)) and progesterone. Results obtained were compared with values determined by reference method, isotope dilution-gas chromatograph/mass spectrometry (ID- GC ...
A downscaled multi-residue strategy for detection of anabolic steroids in bovine urine using gas chromatography tandem mass spectrometry (GC-MS3).
applied analysis method resulted in a procedure for which high performance liquid chromatographic (HPLC) fractionation prior to GC- MS (n) analysis was no longer required. Analytical results could be ...
Prime-boost strategies combining DNA and inactivated vaccines confer high immunity and protection in cattle against bovine herpesvirus-1.
cellular arms of the immune response primed with Bovine herpesvirus-1 (BoHV-1) DNA vaccines encoding glycoprotein D (gD) or gC+gD. Calves vaccinated according to the DNA prime-inactivated boost also showed ...
Inhibition of bovine sperm-zona binding by bovine herpesvirus-1.
was treated with monoclonal antibodies against the viral glycoproteins gB, gC, gD and gH prior to insemination. Anti-gC completely prevented the inhibitory effect of BoHV-1 on sperm-zona binding, while ...
Arcobacter cibarius sp. nov., isolated from broiler carcasses.
hybridization with reference strains of the current four Arcobacter species revealed binding levels below 47 %. The G+C contents ranged between 26.8 and 27.3 mol%. Pairwise comparison of 16S rRNA gene sequences ...
Acinetobacter diversity in environmental samples assessed by 16S rRNA gene PCR-DGGE fingerprinting.
species. PCR using the Acinetobacter primer pair allowed detection of Acinetobacter in soil with a detection limit of 10(4) cells g(-1) soil, but attachment of the GC-clamp to the forward primer resulted in ...
TEQ-value determinations of animal feed; emphasis on the CALUX bioassay validation
July 2002. The results evidence good agreement between TEQ-values obtained by either CALUX or GC- HRMS. The method is now routinely in use for a feed screening programme designed by the Federal Agency ...