OPTIC 3 Injection System
Increase capacity of your GC system with
OPTIC 3 injector!
OPTIC 3 is a highly advanced injector with sophisticated temperature and gas
flow control that
can be used for the most demanding GC analyses. As its predecessor, OPTIC 2,
the new system
can be used for hot split/splitless, cold split/splitless and on-column
injections. Facilities such as
large volume sampling, thermal desorption and pyrolysis are standard features.
OPTIC 3 is designed to be compatible with most popular makes and models of GC
and GC-MS.
Once installed, OPTIC 3 should be fully compatible with an autosampler.
OPTIC 3 system consists of the injector, the control unit and the dedicated
control software -
ATAS Evolution Workstation. The software graphically displays all the system
parameters in a
real time mode and gives a possibility to save the run-time data for every
injection. Evolution Workstation
can also be integrated with Agilent Chemstation.
OPTIC 3 can be delivered in one of the four configurations. The basic model is
OPTIC 3-S.
OPTIC 3-D has an auxiliary gas control channel. OPTIC 3-SC and OPTIC 3-DC
include a built-in
cryotrap option
LINEX
Second generation DTD
New accessory for OPTIC 3 injector
Automatically changing liners is
a technique that has already been used for many years.
ATAS GL has successfully applied this approach in the Direct Thermal Desorbtion
(DTD) unit.
Now we introduce its second generation: LINer EXchanger.
Advantages are:
- Can be used on any GC,
- DMI technique permits the analysis of trace contaminants in a wide range of
different matrices,
- Uses standard 11mm septa and is compatible with the Merlin Microseal,
- True septum purge (removes septum bleeding, reduced risk of carry over)
- Liquid injection can be done while the automatic head is closed,
- Uses standard OPTIC liners,
- No liner transport adapter required,
- Based on the OPTIC 3
- Little if any sample preparation is required,
- Can be automated by FOCUS / CombiPAL,
- Selective desorption of components of interest without pyrolyzing of the
matrix,
- Low consumable costs,
What is DMI:
• Ability to analyse sample by directly introducing the matrix or extract
into the
injector - little if any sample prep is involved
• Liquid or dirty solid samples contained in a DMI microvial which is
inserted in
an injector liner
• Desorption from sample directly onto head of the GC capillary column – fewer
steps involved, less opportunities for analyte losses
• Solvents can be removed by venting under controlled conditions
• Compounds of interest can be transferred onto the column using the
lowest
possible final temperature – limits
pyrolyzing of matrix
• Involatiles from the matrix are kept in the microvial which is
disposed of after
use – iner can be re-used
LINEX , an automated
liner exchanger, is designed to be used for Direct (in-injector)
Thermal Desorbtion (DTD). It can be quickly, in a matter of minutes, mounted on
any
standard OPTIC injector. Any of the standard OPTIC liners can be handled by
LINEX
either in manual or automated mode. In the automated mode liners are
transported
between the 98-position tray and injector by ATAS GL FOCUS sampling robot
equippedwith a pneumatic gripping arm.
With LINEX, the
multi-sample analysis sequence works in a simple way: head of the
injector is opened and a liner containing sample is introduced. The head is
closed and
the liner is purged with carrier gas. Next, the injector is heated and the
sample is
transferred onto the column. At the end of the analysis the empty liner is
moved back to the tray and the cycle is repeated.
The use of the
newly developed LINEX is a most promising approach for analysis of solid and enriched gaseous samples with the fully automated OPTIC GC or OPTIC GC/MS system. There is also a possibility to apply the approach for the analysis of
samples with a difficult matrixusing the so-called DMI technique. With DMI a minimum sample preparation is required.
Applications done
on LINEX:
• Qualitative and quantitative determination of the organic wood
preservative
component N-cyclohexyl-diazeniumdioxide (HDO) in treated timber means
of direct thermal desorption–gas chromatography–mass spectrometry
(DTD–GC–MS).
• Trace-level determination of pesticides in food using difficult
matrix introduction.
• Fatty Acid Profile in vegetable oils.
• Analysis of car exhaust.
• Nicotine in Tobacco.
• Chemical Analysis of Spores and Pollen.
• Limonene in shampoo.
• Benzene and toluene in crude oil.
• Caffeine in instant coffee.