Highlights of progress report by intersessional working group to assess present status towards elimination of PCB under the Stockholm Convention.
Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants â Third Round 2016/2017, Organochlorine Pesticides, PCBs and Brominated Flame Retardants
Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants : Third Round 2016/2017, Dioxin-like POPs and Perfluorinated Alkyl Substances
CONTAMINANTS OF EMERGING CONCERN IN THE ARCTIC: AN ASSESSMENT OF HALOGENATED NATURAL PRODUCTS
Temporal Trends of Polychlorinated Biphenyls, Organochlorine Pesticides and Polybrominated Diphenyl Ethers in Osprey Eggs in Sweden over the Years 1966 – 2013
Introduction When a major chemical accident occurred on Saturday July 10th 1976 at the ICMESA chemical plant located in a small Italian city named Seveso, it not only irrevocably changed our view of chemical plant safety, but it heavily exposed the local population to unprecedented levels of ‘dioxins’ (Hay, 1976). From the early days, measuring TCDD levels in human blood was a key aspect to appreciate to which extend the population health would have been impacted. It however took several years to develop and validate serum methods based on studies that demonstrated that serum sample levels correlated in an excellent way with routinely analysed adipose tissue levels (Patterson et al., 1988). Still today, these 1976 samples are amongst the highest blood TCDD levels (up to 56,000 ppt) ever recorded (Needham et al., 1998). Measuring levels of polycholrinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) in human serum is still of prime interest for biomonitoring of the general population. If early 1980’s approaches (Smith et al., 1984) are still followed for sample preparation, methods have evolved to adapt to smaller sample amounts and larger numbers of target analytes. Although the ultimate goal is to be able to carry out such measurements in μL amounts of serum (L’Homme and Focant, 2016), sensitivity issues remain and will take more time to be solved. In that context, the aim of the present work was to revisit one of the most used sample preparation approach (solid-phase extraction followed by multiple column clean-up and fractionation) in order to minimize solvent consumption and related costs while maintaining the adequate efficiency.
Do PCDD/PCDF standard solutions used in bioassay- or mass spectrometry based dioxin analysis pose a risk as potentially acutely toxic to lab personnel?
A review of emission factors for unintentional hexachlorobenzene and pentachlorobenzene from metal production
Temporal trends of persistent organochlorine and bromine compounds in ringed seals from the Baltic Sea (Phoca hispida baltica) from year 1974 to 2015
Negative Ion APCI Mechanisms Associated with the Coupling of Supercritical Fluid Chromatography to Mass Spectrometry for the Analysis of Halogenated Environmental Contaminants
Monitoring of environmental contaminants in biological samples is typically performed by targeted analysis using a tandem quadrupole system on separate GC and LC platforms in order to cover the exp ...
