The melting points of the technical mixtures are considerably lower than the melting points of isolated congeners.
However, the first four only comprise approximately 45% of the technical mixtures.
Most studies performed on the effects of PCBs used Aroclor, technical mixtures of PCBs containing planar and nonplanar congeners.
This paper describes the aerobic biodegradation of the technical mixture of branched NP in NP-polluted river sediment.
In the present work, the separation of complex nonylphenol technical mixtures has been optimized using comprehensive two-dimensional gas chromatography coupled with a flame ionization detector and quadrupole mass spectrometer (GC × GC qMS), using valve-based modulator.
The identification of octaBDE and nonaBDE congeners in human samples [ 40, 74] has led to many questions about the origin of these congeners, such as if they are a result of selective uptake of impurities in the technical mixtures, or if they are a result of debromination.
If these unmonitored products begin to dominate the HOC load, the typically monitored components of the technical mixture may no longer provide an accurate assessment of occurrence.
Short-chain chlorinated paraffins (SCCPs) are complex technical mixtures of halogenated contaminants with linear carbon chain lengths from 10to1310to13
Being herbivores, terrestrial animals have congener profiles closer to deposited (technical) mixtures of PCBs and PBDEs when compared to e.g. Baltic Sea seal (tetra- and penta congeners of PCBs and congeners BDE47, 99 and 100 contribute significantly).
