In this special EAS edition of Z-APPS we have included three new
application notes that feature separations on the ZirChrom®-PBD
phase. This research explores how the unique selectivity and
stability of ZirChrom phases can be employed to meet the toughest
ZirChrom will be exhibiting at the upcoming Eastern
Analytical Symposium (EAS). To
learn more about this cutting edge research
visit us at our EAS booth #205 on November 14-16th, 2016.
Separation of Benzimidazoles
and Derivatives in Anti-parasitic drugs on ZirChrom®-PBD -
Benzimidazoles are a large class of pharmaceuticals used in animal
production with a broad spectrum of activity against roundworms
(nematodes).1 The longer half-life of oxfendazole and fenbendazole,
due to their slow metabolization, allows these compounds to be more
effective but also raises the concern of residues in the final food
products. Here we present a gradient separation of six closely related
anti-parasitic pharmaceuticals using
a ZirChrom®-PBD phase with
UV detection at 254 nm.
- Full Application Note)
Fast Separation of Wood Preservatives on ZirChrom®-PBD
Overlapping phenolic compounds complicate the analysis of the
preservatives tebuconazole and propiconazole in wood extract samples.
A mobile phase chosen to take advantage of the multi-mode separation
capability of ZirChrom®-PBD speeds and simplifies this separation.
Tebuconazole and propiconazole standards were separated isocratically
in under 4 minutes on a ZirChrom®-PBD column using a mobile phase
optimized to separate the two preservatives while preventing the
interference of phenolic compounds also present in real world
Full Application Note)
Fast Separation of Ten Triazine Herbicides on ZirChrom®-PBD
Historically, the preferred analysis method for triazines, like many
herbicides, has been gas chromatography. Although HPLC techniques are
non destructive, allow for large volume injections (on column
enrichment), and allow the use of a wide range of detectors, their use
in this application has been hindered by long run times necessary to
achieve the desired resolution. Here we present a new HPLC method
that exploits the unique selectivity and thermal stability of the
ZirChrom®-PBD column to separate ten triazine herbicides in less than
three minutes, four times faster than the previous method, with a
LC-MS compatible mobile phase.
- Full Application Note)
ZirChrom Separations will be exhibiting at EAS
November 14th through November 16th. ZirChrom technical experts will
be staffing the ZirChrom booth, booth #205, and would be happy to
assist with your most difficult separations.
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