Wellington Laboratories Inc. services

In order to help increase sample through-put and overall efficiency in busy analytical laboratories, we offer ready-to-use calibration kits and support solutions for the following regulatory methods:

Wellington offers a wide variety of native and mass-labelled polychlorinated dioxin and furan congeners to meet your analytical needs.  Whenever possible, our compounds are synthesized using unambiguous, one-product synthetic routes and are provided to you at a purity of 98% or greater.  In addition, the 2,3,7,8-substituted PCDDs and PCDFs are traceable to a number of interlaboratory studies dating back to 1991.

In an effort to satisfy our customers, a number of specialty solution/mixtures of native and mass-labelled PCDDs and PCDFs have been prepared. These include multi-point calibration sets (with up to 13 points) which allow analysts to customize their GC/MS calibrations depending on anticipated contaminant levels.

The complex nature of commercial polychlorinated biphenyl (PCB) mixtures is well documented. The practice of analyzing for marker PCBs (congeners that are most prevalent in technical mixtures) and WHO PCBs (congeners that exhibit “dioxin-like” toxicological activity) has become routine practice in analytical laboratories. Congener specific analyses are also very important since commercial PCBs can vary in composition on a lot to lot basis and can change once they age in the environment.

Specialty solution/mixtures of native and mass-labelled polychlorinated biphenyls (PCBs) have been prepared by Wellington in our on-going attempt to satisfy our customers’ needs. These solutions include multi-point calibration sets which can be used for the analysis of the 12 WHO (“dioxin-like”) PCBs as well as PCBs-170 and -180, which have been assigned provisional toxic equivalency factors (TEFs). A much more involved set of solutions containing 82 native PCB congeners, including all of the WHO PCBs, is also available. The PCB congeners in these solutions were selected based on their presence in, and contribution to, the AroclorTM commercial mixtures.

There are many challenges associated with the chemistry, toxicology and environmental analysis of brominated flame retardants (BFRs) as well as other chlorinated and nonhalogenated compounds used solely as flame retardants (FRs), or in mixtures with BFRs. This area of research is continuing to grow as additional FRs are being found in the environment and certain BFRs are being phased out and replaced with new compounds. The scientists at Wellington monitor the literature for reports of these newly detected contaminants and new commercial flame retardants so that we can provide the necessary reference standards.