New Applications Using GC BID Detector · New Applications Using GC BID Detector BID-2010 Plus of...
Transcript of New Applications Using GC BID Detector · New Applications Using GC BID Detector BID-2010 Plus of...
PO-CON1406E
New Applications UsingGC BID Detector
Pittcon 2014 530-1P
Zhuangzhi “Max” Wang, Nicole Lock,
Richard Whitney, Clifford M. Taylor
Shimadzu Scienti�c Instruments, Columbia, MD
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Introduction
New Applications Using GC BID Detector
The Barrier Ionization Discharge (BID) detector generates a 17.7 eV helium plasma that ionizes almost all compounds except Neon. A newly designed quartz dielectric chamber allows for a lower discharge current and higher operating temperature. The BID is a universal detector with sensitivity greater than 100 times that of a TCD. It is an ideal detector for trace levels of permanent gas, water, volatile fatty acids and light hydrocarbons. Two customized GC applications are presented. Two 6-port valves are used to inject, trap and release permanent gases. A 4-port switching valve was used to direct high concentration sample components to a TCD.
Materials and Methods
A plasma is generated by applying a high voltage to a quartz dielectric chamber, in the presence of helium. Compounds that elute from the GC column are ionized by this He plasma, then captured with collection electrodes and described as peaks. The photon energy of He is extremely high (17.7 electron volt). Therefore it makes possible to detect every compound except Ne (neon) and He which is the plasma gas, with high sensitivity. BID is truly a universal plasma detector.
BID-2010 Plus Principals for Detection
Column
Quartz tube(dielectric substances)
He plasma
Principle of Ionization Reaction
BID was developed thru collaborative research with Dr. Katsuhisa Kitano, Center of Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, resulting in 3 U.S. patents and 4 patents pending.
Plasma
Compounds
BID-2010 PlusCross Section Drawing
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New Applications Using GC BID Detector
BID-2010 Plus of Tracera is a novel universal detector based on dielectric barrier plasma ionization. Tracera makes it possible to conduct many kinds of applications and achieve simple and high sensitive analysis.
1. High Sensitivity Detection Sensitivity over 100x Higher Than TCD, 2x Higher than FID
2. Novel Universal Detector Single Detector Approach for Your Complex Analyses
3. Long-Term Stability Long-Term Stability with New Discharge Design
Structure of BID
Features of BID-2010 Plus
Structure of BID
Three electrodes are placed on the quartz tube. High voltage is applied to electrodes, and plasma is generated
Compounds are ionized by plasma, and signal is collected at collection electrode
column
Quartz glass tube(Dielectric) Helium plasma
He
Low frequency power supply
High voltageelectrode
Collection electrode
First purge line
Second purge line
Plasma generation zone
Peak detection zone
The BID can replace multiple detection schemes
TCD
TCD
He carrier
Ar carrier
Analysis of O2,N2,CH4, CO
Analysis of H2
ppm levels of CO and CO2 are detected
TCDHe
Impossible to detect
FIDMTN-1He
Analysis of H2, O2, N2, CH4, CO Analysis of ppm level of CO, CO2
Using two TCDs Using a Methanizer and FID
BID will detect all of these analytes at low levels
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New Applications Using GC BID Detector
GC-2010Plus BID with Valves
Main body of BID-2010 Plus
• Permanent gases are trapped in a MolSieve column, and then released and analyzed by BID.
• Light hydrocarbons are analyzed by the BID directly, bypassing the MolSieve column.
System I System I ChromatogramData�le Name:BID_TogasRep 005.gcdSample Name:Unknown SampleSample ID:UNK-0005
Concentration(ppm)
Hydrogen Oxygen Nitrogen Methane CarbonMonoxide
CarbonDioxide
Ethylene Ethane Acetylene
100 2500 16900 100 100 400 100 100 100
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 min
-100000
0
100000
200000
300000
400000
500000
600000
uV
MET
HA
NE
CA
RBO
N D
IOX
IDE
AC
ETY
LEN
E,ET
HY
LEN
E
ETH
AN
E
H2
O2
N2
CA
RBO
N M
ON
OX
IDE
BID1
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New Applications Using GC BID Detector
System I Standard Repeatability
System I Hydrocarbon Standard Repeatability • Permanent gases are trapped in a MolSieve column, and
then released and analyzed by BID.• High concentration sample components are directed to
the TCD via a 4 port switching valve.
System II
System I Hydrocarbon StandardData�le Name:BID_C1-C6Rep 005.gcdSample Name:Unknown SampleSample ID:UNK-0005
Concentration(ppm)
Methane
100
Ethane
100
Propane
400
N-Butane
100
N-Pentane
100
N-Hexane
100
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 min
0
25000
50000
75000
100000
125000
150000
175000uV
MET
HA
NE
ETH
AN
E
PRO
PAN
E
N-B
UTA
NE
N-P
ENTA
NE
N-H
EXA
NE
BID1
New Applications Using GC BID Detector
Conclusions
System II Low Standard- BID System II High Standard - TCD
• The new Shimadzu GC BID is a universal, sensitive, and rugged detector that can be used in a variety of applications.
Data�le Name:DDF210-BID-11-8-13-006.gcdSample Name:HIGH GAS STDSample ID:DDF210-BID-11-8-13-006
2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 min
0
500000
1000000
1500000
2000000
2500000
3000000
3500000
uV
CO
2
C2H
4/C
2H6
C2H
2
H2
O2
N2
CH
4
CO
Data�le Name:DDF210-TCD only-11-12-13-006.gcdSample Name:High Gas STDSample ID:DDF210-TCD only-11-12-13-006
2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 min-10000
0
10000
20000
30000
40000
50000
60000
70000
80000
90000
100000
110000uV
CO
2
C2H
4/C
2H6
C2H
2
O2
N2
CH
4
CO
For Research Use Only. Not for use in diagnostic procedures.The content of this publication shall not be reproduced, altered or sold for any commercial purpose without the written approval of Shimadzu. The information contained herein is provided to you "as is" without warranty of any kind including without limitation warranties as to its accuracy or completeness. Shimadzu does not assume any responsibility or liability for any damage, whether direct or indirect, relating to the use of this publication. This publication is based upon the information available to Shimadzu on or before the date of publication, and subject to change without notice.
© Shimadzu Corporation, 2014
First Edition: March, 2014
www.shimadzu.com/an/
Concentration(ppm)
Hydrogen Oxygen Nitrogen Methane CarbonMonoxide
CarbonDioxide
Ethylene Ethane Acetylene
100 2500 16900 100 100 400 100 100 100Concentration
(ppm)
Hydrogen Oxygen Nitrogen Methane CarbonMonoxide
CarbonDioxide
Ethylene Ethane Acetylene
4990 125310 829675 3740 5000 20040 3750 3750 3745
BID1 TCD1