The document introduces the 4th generation optic multimode inlet for gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS), highlighting its versatility and enhanced detection capabilities. It supports various injection techniques including cold and hot split/splitless, pyrolysis, and large volume injections, while offering a range of patented benefits such as improved temperature profiles and reduced thermal degradation. Additionally, it details features like easy installation and compatibility with multiple instruments, positioning itself as a powerful tool for complex sample analysis.

1. You want a flexible and
multi-usable GC or GCMS
system with increased
application range and
detection limits!?

2. Who doesn’t

3. 4th
generation of the world’s most powerful inlet for Gas Chromatography
OPTIC Multimode Inlet changes your
GC or GCMS into a flexible and multi-
usable system with increased
application range and detection limits

4. One Inlet, More Analytical Options
OPTIC Inlet is much more than any other Inlet

5. Compatible with most GC’s

6. Your GCMS would be able to handle:
 Cold and Hot Split/Splitless injections
 Pyrolysis (liquid and solid samples)
 Large Volume Injections
 In-liner derivatisation
 LC-GC coupling possibility
 Headspace
 CryoFocusing on the column
 Thermal Desorbtion
 On-Column injections
 Automatic liner exchange

7. Direct heating technology
Low thermal mass
Septum or Merlin Seal
Septum purge line
Carrier line
Split line
High power
O-ring
Liner I.D. = 3.4mm
Oven wall
Cooling by Air, CO2, LN2
computer modeled temp. profile Max temp.: 600˚C
Max ramp : 60˚C/sec
Thermocouple
Solvent Monitor
patented

8. Benefits of OPTIC Inlet
Real Septum Purge flow
Different septa ca be used: Plug type
Disk type
Merlin Microseal ™
Metal column ferrule can be used

9. Benefits of OPTIC Inlet
Low thermal mass >:
High temperatures (up to 600°C)
Fast ramp rates (up to 60°C/sec)
Fast cool down time
Relatively large liner diameter (3.4 mm i.d.) >:
150µl At-Once LVI
Direct Thermal Desorbtion (DTD)
Difficult Matrix Introduction (DMI)
In-Liner derivatisation
Solid and Liquid sample Pyrolysis
Best temperature profile >:
good transfer of high molecular components

10. Temperature profiles
No Cold Spot
Good for high molecular components

11.  No discrimination
 No evaporate from the syringe needle
 More control over the true injected volume
 Less thermal degradation (Less problems with thermally labile
compounds degrade due to the thermal stress upon injection)
 Better reproducibility with SPME
 Very good reproducibility, also using CombiPAL
Benefits of cold injections

12. Cold injection versus hot injection
Hot injection
Cold injection

13. Performance Hot versus Cold injection
Autosampler: AOC 20i, GC-MS: QP 2010, Injector: OPTIC 3, Injection volume: 1 µl, Alkane mix: 0.5 µg/ml
Constant 320
Constant 250
Programmed
50 -> 320
Inlet temp.

14. Benefits of Large Volume Injection
Sample vol 1000ml 10ml 10ml
Elution vol. 2000µl 2000µl 200µl
Mass in 1µl 5pg 0.05pg 0.5pg
Injection vol. 1µl 100µl 100µl
Mass injected 5pg 5pg 50pg
Less sample and solvent is needed and
finally more is arrived at the detector.
Less sample and solvent is needed and
finally more is arrived at the detector.

15. LVI; Why so good with OPTIC ?
(s)10 20 30 40 50
30 o
C
15
0
-15
Temp.
In the liner
C5
C6
EtOAc
MeOH
Good evaporate cooling effect because inlet
body has a very low thermal mass

16. LVI Solvent Vent Monitor Function
in OPTIC
Sensor
Output
Time
Inject Vent valve closes
Sensor in split lineSensor in split line
(standard available)(standard available)

17. Difficult Matrix Introduction (DMI)  Raw sample or dirty
extract is put into micro vial and placed directly into liner
In-injector thermal desorption or pyrolysis of liquid or solid
samples
What is Difficult Matrix Introduction (DMI)?

18. d)
OP TIC
Injector
e)
Ca rrier In
Split Flow
Column Flow
Transport liner with sample into OPTIC inlet
Seal and purge the inlet. Apply selective exclusion principle for the analysis:
First temperature increased to just below BP of solvent
Solvent is vented through split line
Temperature and pressure ramped up to achieve selective transfer
Dispose microvial after analysis, clean and re-use liner
DMI step by step:DMI step by step:
What is Difficult Matrix Introduction (DMI)?

19. Pyrolysis Liquid
T (°C)
t (min)
injection solvent
elimination
pyrolysis
600
40
0 1 5
Liquid injection: simple to automate pyrolysis
Sample inlet
Vapour outlet - Temperature program to 600°C
- Fast ramp rate (60°C/sec)

20. Pyrolysis Solid
- Sample in micro vial
- Fast ramp rate (60°C/sec)
- Temperature program to 600°C
- Multi-Shot Pyrolysis possible
- Evolved Gas Analysis (EGA) possible

21. On-Column solution
 No press fit
 No liner
 No modification to OPTIC
Inlet
 Easy installation
 Real On-Column
 New type Merlin Microseal
can be used

22. CryoTrap Option
Different ramp rates for same component.
60°C/sec
30°C/sec
10°C/sec
Cryogenic cold trapping is frequently used for narrowing the
chromatographic band and improving the detection limit.
OPTIC-4 Cryotrap is the fastest heating trap > resulting in sharp peaks

23. ATAS GL – Thermal Desoption Solution (TDS)
Main points:Main points:
- Direct heatingDirect heating
- Trapping on the column (one desorption from liner to column)Trapping on the column (one desorption from liner to column)
- No dead volumeNo dead volume
- Real septum purgeReal septum purge
- Real Splitless transfer from sample to columnReal Splitless transfer from sample to column

24. LINERS
Fritted liner, frit on 15 mm
liner for split injections (single necked)
Empty liner for splitless injections
Baffled splitless liner
Fritted liner on 20 mm with single taper
“A” type packed liner for large volume injections
“8270” sintered liner for large volume injections
Sintered glass liner with taper
LINEX DMI Liner
DMI Liner Insert (micro vial)

25. OPTIC Injection Modes
 Combined TD / Pyrolysis
 Injection port reactor
 Micro Headspace / Micro vial
 SPME-GC
 SPE-GC
 TCT-GC
 GPC-GC
 LC-GC
 Comprehensive LC x GC
 Automatically changing liners
 Hot split injection
 Hot splitless injection
 Cold split injection
 Cold splitless injection
 On-column injection
 Large Volume Injection
 Gas enrichment
 Direct thermal desorption
 Pyrolysis (in liner)
 Headspace

26. www.glsciences.eu
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