January
2011 | Volume 11 | Issue 1
FEATURED
APPLICATIONS:
Three
New Applications Focus on the
DryVap®
Evaporation Concentrator System
New
The Complete Evaporation
of Methanol for LC Applications Using the DryVap® Concentration
System
The extraction of samples for specialized liquid chromatography
(LC) applications is frequently challenged by the need
for a very particular solvent, or mix of solvents which
are required to achieve the correct chromatography.These
methods typically extract the analytes of interest into
a water soluble solvent such as methanol and concentrate
the extracts to total dryness before reconstituting the
residue in another solvent. The evaporation step can be
done using commercially available concentration apparatuses
such as water baths or nitrogen gas sparging. However,
these require constant analyst intervention to prevent
the residue from being carbonized or otherwise thermally
degraded. The ideal concentrator would allow for the unattended,
rapid concentration of a water soluble solvent without
the risk of damage to the extract. Learn
More >>
New
Enhancing Recoveries and Maximizing Throughput of Semi-Volatile
Organics Using the Direct-to-GC-Vial Concentrator Tube
and DryVap® Concentrator System
This
purpose of this study is to determine how the Direct-to-GC
vial concentrator tube and the DryVap® Concentrator System
can optimize the recoveries for both low and high boiling
point semi-volatile compounds. Learn
More >>
New
Concentrating PCB Congeners 10 Thousand Fold with the
Horizon Technology DryVap® Concentration System
Polychlorinated
biphenyls (PCBs) are found throughout the environment
and are recognized as a serious health threat.PCBs, dioxins,
and furans must be detected at the lowest levels possible.
The use of selective and sensitive detectors such as the
ECD and high resolution Mass Spec, and enrichment techniques
such as Kuderna-Danish concentrators and rotary evaporators
are prescribed for environmental sample analysis. These
experiments focused on the recovery levels of PCB congeners
after concentrating spiked solutions 10 thousand fold
with the DryVap® Concentrator System developed by Horizon
Technology. Learn
More >>
For further information about these applications please
contact Applications@horizontechinc.com
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PRODUCT
SPOTLIGHT:
DryVap®
Evaporation Concentration System
This
innovative solvent evaporation system is the first of
its kind to automatically Dry and Evaporate liquid
samples for GC and GC/MS applications. The organic solvent
is automatically dried of any residual water, using Horizon's
patented DryDisk® membranes and then transferred into
the evaporation vessel. A unique combination of heat,
a sparge gas, and vacuum is used to gently evaporate the
sample. Each variable can be optimized, to maximize the
recovery of the analytes of interest.
Designed for unattended operation, the DryVap
system can process up to 6 samples simultaneously, and
independently. The evaporation tubes will handle sample
volumes from 200mL to 2mL, making the DryVap ideal for
both LLE and SPE.
DryDisk®
Separation Membrane
50mL Disposable Barrel 
The
DryDisk®
Separation Membrane 50mL Barrel is a disposable sample
preparation device that provides a fast and simple approach
for removing residual water from non-polar solvents. The
DryDisk®
membrane replaces
the conventional sodium sulphate drying technique. The
barrel is made from high purity HDPE (high density polyethylene)
and has a GORE TEX® PTFE membrane embedded inside.
The membrane is supported by an inert polymeric laminate
for maximum mechanical integrity.
For
more information about the DryVap and DryDisks Click
Here >>
....................................................................................................................
FEATURED VIDEO:
Demonstration:
DryVap® Evaporation Concentration System
Automated solvent drying, solvent evaporation
and sample concentration
Replace
those manual steps for one automated process. Watch this
short video to learn how the DryVap delivers exceptional
analyte recovery rates quickly, easily and consistently.
Watch
it Now >>
Approx.
Duration 19:00 Minutes
....................................................................................................................
TIPS
AND TRICKS WITH TOM:
Theory
of Operation of the Thermistors (liquid Sensors) on the
SPE-DEX® 3000XL/1000XL Extractor Systems
By:
Tom Nesbitt, Technical Support Specialist
Last
month I talked about the sensors on the SPE- DEX 4790
Extractor, this time I will discuss the sensor on the
SPE-
DEX 3000/1000 Extractor. On the 3000/1000 Extractor,
the Thermistor, hereafter referred to as the "sensor",
is used to monitor the presence, or absence of liquid,
in this case the water sample.
For
example, when the water sample is being dispensed into
the disk holder, the sensor is in air, and is "hot". As
the water sample level rises, it will come in contact
with the sensor, which now "cools" the sensor. This state
change from hot to cool is monitored by the 3000/1000
software and can be observed on the controller (Refer
to TT93).
To
get this complete Tips and Tricks Document click
here for your FREE copy.
If
you have a question for Tom email us at service@horizontechinc.com
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TRADE
SHOWS:
Horizon
Technology Announces 2011
Tradeshow Schedule
North America
PITTCON -March 13-18 - Atlanta. GA (Booth
# 846)
Industrial Wastewater Seminar - May 9 -10 - Bally's
Atlantic City, New Jersey
ASMS Conference - June 5-9 - Denver, CO
NYAAEL/PaAAEL Annual Convention & Expo - July
- New York
PREP - July 10-13 - Boston, MA
NEMC - August 15-19 - Bellevue, WA
Gulf Coast Conference - October 11-12 - Galveston,
TX
WEFTEC - October 15-19 - Los Angeles, CA
ACIL - October
EAS
-November 14-17 - Somerset, NJ
International
Analytica Vietnam - April 5-7 - Ho Chi Min City,
Vietnam
KOREA LAB - June 14-17 - Kintex, Korea
Dioxin - August 21-25 - Brussels, Belgium
ExTech/Lab Asia - September 27-29 - Kuala Lumpur,
Malaysia
Visit
the Trade Show page
