Sorbents
The TESSEK SEPARON SGX sorbents are based on a totally
porous, spherical silica. The sorbent is prepared by an original
technology, ensuring high batch-to-batch reproducibility. It features
high sorption capacity, good mechanical strength, enhanced chemical
stability and a wide pore size distribution. The average pore
diameter is around 8 nm (special macroporous sorbents for size
exclusion chromatography have pore diameter 20, 50 and 100 nm
respectively), the average surface area 500 m2/g and
the pore volume 1 ml/g. The modified sorbents are stable in acidic
and neutral medium. The SEPARON SGX sorbents are available in
various particle sizes ranging from 3 to 60 µm and various
modifications suitable for normal, reverse phase and ion chromatography
respectively.
The TESSEK SEPARON HEMA sorbents are based on a rigid macroporous
and hydrophilic polymer matrix. With an unique combination of
stability (mechanical, chemical and biological), perfectly spherical
shape of particles, macroporous structure and hydrophilic nature,
SEPARON HEMA meets the requirements for a versatile chromatographic
sorbent. HEMA sorbents are available in various particle sizes
ranging from 7 to 60 µm and with exclusion limits ranging
from 40 to 2000 kDa. The HEMA-S matrix modification enhances the
rigidity of the sorbent, while the HEMA-BIO matrix modification
yields a highly hydrophilic sorbent. Further modifications yield
sorbents suitable for ion chromatography or reversed phase chromatography.
Matrices with activated supports (e.g. containing epoxy or vinylsulpho
groups) for additional "custom made" modifications are
also available.
HPLC Columns
Stainless steel columns, plastic (PEEK) columns, titanium columns
and compact glass cartridges of original construction are packed
with these sorbents. Plastic cartridges made from medical grade
PP are packed with macroparticulate sorbents for solid phase extraction
(SPE). Titanium columns posses high biochemical inertness similar
to that of PEEK columns; in addition they exhibit high mechanical
strength and withstand high pressure.
Services
Columns both from TESSEK own production and supplied by other
producers are repacked on request.
High performance classification with narrow range of particle
size distribution.
Devices
DORCUS - Vacuum Manifold of new generation for SPE separations.
APION - Dry Mineralizer for sample pretreatment before HPLC and
AAS.