here

QCM934 QCM bio-sensing system
Simultaneous measurement
of mass change and viscoelastic change index
QCM bio-sensing system QCM934 can be simultaneously measured a small mass
change as resonant frequency and the viscoelastic change as resonant resistance
with high sensitivity and high resolution.
Application examples
•Measurement of biopolymer interactions, such as protein
•Real-time monitoring of the formation of high molecular and decomposition
•Evaluation of biocompatible materials like titanium
•Evaluation of a lithium ion secondary battery with EQCM
•Film thickness measurement in the plating
•Gas analysis, such as humidity and smell substance
•Quantitative evaluation of the detergency in surfactant
•Structural change monitor of the polymeric material
System Examples
Flow Cell System
Flow Cell System is controlled by the accuracy of the ± 0.02 ℃ the temperature of the flow type cell of
contents 90 μL which was placed in the measuring chamber (QCM934-510).
Continuous reaction of multiple samples can be monitored in real time by the sample flow at a constant
rate by the pump. Batch reaction can be monitored by stop of pump.
Example system configuration (QCM934-FLOWBASE, Laptop PC, Pump)
Example Measurement of antigen and antibody using 1CH Flow Cell System
①
■QCM system:
②
QCM934 1CH Flow Cell System
(with pump)
■Quartz Crystal Resonator:
QA-A9M-AU(M)(Au, 9MHz mirror)
■Temperature: 25 ℃
■Speed of moving fluid:
Approx. 30 μL/ Min
■Sample:
(Antigen) 1.0mg/ mL rabit IgG ①
(Antibody) 1.0mg/ mL mouse
anti-rabit IgG ②
QCM934 Features
Resonance frequency with high sensitivity and
high resolution
Simultaneous measurement of resonance
resistance for an indicator of viscoelastic change
QCM934 is suitable for high sensitivity of mass
change detection for use in bio-sensing field
necessary in ng order by measuring 27MHz(3rd
harmonic of 9MHz resonator) and 0.01Hz resolution.
The viscosity and structural change of sample are
indicated by measuring resonance resistance.
Sauerbrey’s equation
The system is compatible with various
measurements
ΔF: Frequency change
F: Base frequency
Δm: Mass change
A: Area
ρ: Density of resonator
μ: Crystal shear stress
n: Overtone order
High-precision temperature control of the
measurement chamber(QCM934-550)
QCM934-550 is kept a constant temperature of
QCM934-510 with an accuracy of ± 0.02 ℃ for
stable measurement.
QCM934 is 3 type systems, Flow Cell; advanced
temperature control, Batch Cell; Dip/ Well type, and
EQCM; EQCM with Potentiostat/Galvanostat
Expansion supports up to 4 channels
QCM934 can be simultaneously measured or
independent with max. 4ch QCM934-210 by
connecting the extension slot of QCM934-010.
System Examples
Batch Cell System
Batch Cell System is connected with the cell of dip type (PTFE), well type (PTFE, PEEK and
transparent vinyl chloride) and flow type (PTFE, PEEK and transparent VC) for various
measurement purpose.
It is necessary to add another incubator to keep the sample at a stable temperature in these
systems.
Example System configuration (QCM934-BATCHBASE, Laptop PC, QA-CL4/ QA-CL4PK/ QA-CL5)
○Dip Cell
QA-CL3
○Well Cell
QA-CL4
QA-CL4PK
○Well Cell
QA-CL5
○Flow Cell
QA-CL6
QA-CL6PK
QA-CL7
EQCM System
High sensitive EQCM system is combined with many Potentiostat/Galvanostats with analog output
Data logger
Potentiostat/
Galvanostat
with analog
output
Example System configuration (QCM934-EQCMBASE, Laptop PC, Stand, Lab jack)
Resonator
Measurement image
There are many options available for a 9MHz AT-cut
resonator design with the combination of 14 different
electrode materials (Au, Pt, Ag, Al, C, Cu, Ni Mo, ITO,
Si, SiO2, SUS316L, SUS304, Ti), surface finish
(standard and mirror) and lead wire fixing (integrate
and separate)
An AC voltage is applied to the electrodes of
resonator and it is resonance by the piezoelectric
effect, the mass change of the surface (Δm) is
proportional to the resonance frequency change (ΔF).
The sensitivity is about 0.36ng/Hz(about
1.8ng/Hz/cm2) in case of 3rd harmonic of 9MHz.
Au electrode
Lead wire
AT-cut crystal
piece
Specification
□QCM934 base function: QCM934-010+QCM934-210
Item
Description
Number of
Up to 4 QCM934-210 can be installed
channnels
Resonance frequency, resistance and
Measuring item
temperature in measurement chamber
Resonance
Resolution: 0.01 Hz
frequency
Frequency range: 25 MHz to 27 MHz
Resonance
Resolution: 0.01 Ω
resistance
Resistance range: Max. 2kΩ
Temperature
Range: 5 ℃ to 55 ℃ Resolution 0.01 ℃
Gate time
0.1 s/ 1 s/ 10 s
Resonator
9MHz At-cut
Oscillation
within 1 Hz/ min
stability
25 ℃ phosphate buffer in the stable
Interface
USB 2.0 (full speed)
Input power
AC 100 to 240 V, 50/60 Hz
source
Power
Max. 90 VA
consumption
implementation of 4ch
Connection cable 20 cm QCM934-260-200B
length
(Option) 30 cm QCM934-260-300B
Dimensions
320 x 280 x 133 (WxDxH)[mm]*
Weight
Operation
environmental
temperature
Compliant
standards
Approx. 5.5 kg
10 ℃ to 40 ℃ non-condensing
CE marking
EMC, low-voltage directive
□Oscillation Circuit Unit: QCM934-310
Item
Description
Temperature
Control: On/ Off
control
Dimensions
156 x 72 x 32 (WxDxH)[mm]*
Weight
Operation
environmental
temperature
Approx. 0.6 kg
10 ℃ to 40 ℃ non-condensing
□Measurement Chamber: QCM934-550
Item
Description
Temperature
Control: On/ Off
control
Temperature
15 ℃ to 45 ℃ in case of environmental
control range
temperature -15 ℃ to +20 ℃
Temoperature
±0.02 ℃
stability
Oscillation circuit unit built for batch cell
Oscillation circuit
system
Dimensions
136 x 102 x 182 (WxDxH)[mm] *
Weight
Operation
environmental
temperature
Approx. 1.5 kg
□Flow Cell system: QCM934-510
Item
Description
Main body: Alminum alloy/ Polypropylene
Material
O-ring: Viton®
Dimensions
41 x 34 x 19 (WxDxH)[mm]*
Capacity
90μL
Cell is flowed with solution by the pump and
Usage
connected with QCM934-550
□9MHz AT-Cut Quartz Crystal Resonator: QA-A9M-series
Item
Description
Au, Pt, Ag, Al, C, Cu, ITO, Mo, Ni, Si, SiO2,
Electrode
SUS316L, SUS304,Ti
material
300nm of electrode material is sputtered
onto a Ti film groundwork
Electrode area
5mmφ
□Dip Cell: QA-CL3
Item
Description
Main body: PTFE, PVDF
Material
O-ring: Viton®
Dimensions
25.5 x 20 x 12 (WxDxH)[mm]*
Usage
Solution or air
□Well Cell: QA-CL4/ QA-CL4PK
Item
Description
Main body: PTFE, PVDF(QA-CL4)
Material
PEEK(QA-CL4PK)
Oring: Viton®
Dimensions
25.5 x 20 x 12 (WxDxH)[mm]*
Capacity
Max. 750μl
Cell is filled with solution or CL4 and CL4PK
Usage
are connected with RG100(Cell of EQCM)
□Well Cell: QA-CL5
Item
Description
Main body: VC
Material
O-ring: Viton®
Dimensions
25.5 x 20 x 12 (WxDxH)[mm]*
Capacity
Max. 250μl
Usage
Cell is filled with solution
□Flow Cell: QA-CL6/ QA-CL6PK/ QA-CL7
Item
Description
Main body: PTFE, PVDF(CL6)/
Material
PEEK(CL6PK)/ VC(CL7)
O-ring: Viton®
Dimensions
28.0 x 20 x 12 (WxDxH)[mm]*
Capacity
90μl
Usage
Cell is flowed with solution by the pump
* without a projection part
10 ℃ to 40 ℃ non-condensing
Product names in this paper are trademarks or registered trademarks.
The specification is subject to change without notice. Please be forewarned.
SEIKO EG&G CO.,LTD
Grande Bldgs., 2-26-9, Hatchobori,
Chuo-ku, Tokyo 104-0032, Japan
TEL:(+81)3-5543-3106
FAX:(+81)3-5542-3109
http://www.sii.co.jp/segg
Jun 2015 Rev. 1.1