Download iv) Electrochemical detection

TECHNICAL EVALUATION REPORT BY TECHNICAL COMMITTEE
TENDER NO. : USM/IDB/P2/2010/V2
School
Name of Equipment
Quantity (ies)
Estimated Price
Bidder
Code
Make/Model/
Accessories
:
:
:
:
Country
Of
Origin
Delivery
Period
United
States of
America
10-12
weeks
School Of Civil Engineering
Electrochemical and Impedance Analyzer
1
RM152,000.00
Technical and Critical Characteristics to be taken into account by
Evaluation Committee
A.
P2V2/12/18 Princeton
Applied
Research Model:
VersaStat 4-400
ITEM
ELECTROCHEMICAL AND IMPEDANCE ANALYZER
Not comply with technical
specifications.
B. DESCRIPTION
i. Lower compliance voltage of
The tenderer is required to supply an electrochemical and impedance
-± 12V, ± 30V required
analyser capable of performing both qualitative and quantitative analyses of
corrosion activities including corrosion of steel in concrete.
C.
P2V2/18/18 METROHMAUTOLAB
AUT302N. FRA.v
The
3 months
Netherlands
P2V2/17/18 Autolab
The
2 months
PGSTAT302N
Netherlands
with FRA Module
AUY302N. FRA.v
State whether the technical
specification suits with
requirement
(conformity/deviation)
D.
1.
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Modular Potentiostat/Galvanostat
Should be a modular low noise Potentiostat/Galvanostat system capable of
measuring or applying a maximum current of ± 1 A, with a compliance
voltage of ± 30 V and to do iR compensation.
Maximum output current: ± 2A.
Maximum output voltage: ± 30 V.
Potential range: ± 10V.
Applied potential accuracy: ± 0.2 % of setting, ± 2 mV.
Applied potential resolution: 150 µV or smaller.
Measured potential resolution: 30 µV or smaller.
Current range: 10nA to 1A in 9 ranges (1A, 100mA, 10mA, 1mA, 100µA,
10µA, 1µA, 100nA and 10 nA).
Applied and measured current accuracy of  0.2% of current and  0.2%
of current range.
Applied current resolution: 0.03% of current range.
Measured current resolution: 0.0003% of current range, (At current range
of 10 nA, the measured current resolution should be 30 fA).
Potential bandwidth: greater than 1 MHz.
Potential risetime/falltime: not more than 250 ns
Should have high speed/high stability potential modes.
Input impedance electrometer: greater than 100 TΩ/ < 8 pF.
Input bias current: less than 1 pA at 25°C.
Electrometer bandwidths: greater than 4 MHz.
Should have varied IR compensation capabilities with selectable range: 0Ω
TDQ
147,000.00
147,000.00
TQ
118,000.00
118,000.00
TQ
117,500.00
117,500.00
ii. Higher risetime/falltime of
350 ns than 250 ns required
ESSENTIAL FEATURES
The instrument should be able to perform electrochemical analyses
including DC-techniques, AC-voltammetry, impedance analyzer and iR- iii. Higher input bias current of
compensation.
5 pA than 1 pA required.
The instrument should primarily consist of high performance
potentiostat/galvanostat, a frequency response analyser (FRA) module,
Comply
and the relevant softwares to enable electrochemical and impedance
analyses be performed including corrosion of steel in concrete.
The instrument should be suitable to be used for research work related to
corrosion of steel in concrete, such as for determination of corrosion
potential, ohmic resistance, polarization resistance, corrosion rate, AC
Comply
impedance measurement and other important corrosion parameters.
TECHNICAL SPECIFICATIONS
The electrochemical and impedance analyser should comply with the
following technical specifications:
Technical Committee Report
Cost Per Unit
Total
(in the Compliance TQ/TDQ)
(CIF)
(CIF)
TQ = Technically Qualified
TDQ = Technically Disqualified Without Tax (RM) Without Tax (RM)
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– 2Ω at 1A range to 0Ω - 200Ω at 10 nA range, complete with current
interrupt and positive feedback, with resolution of 0.025 % or better.
Should have at least four electrode control.
Should have front panel meter for monitoring potential and current.
Should have analog output via BNC connector for potential and current.
Should have control voltage input.
Should have booster option.
Should have optional analog integrator with time constant of 10 and
100ms, 1 and 10s.
Should be provided with USB interface.
Should have 16-bit A/D converter, complete with software to attain
programmable gains of 1, 10 and 100.
Should have at least 2 auxiliary input channels.
Should have at least 16-bit, 4 channels D/A converter.
Should have at least 48 digital I/O lines.
2. Frequency Response Analyser
Frequency range: 10µHz to 1 MHz.
Frequency resolution: 0.003 % or better.
Input range: ± 5V.
Signal types: 1 sine, 5 sine, 15 sine
Should have E and I input channels from the potentiostat/galvanostat or X
and Y external signals.
Should have applied amplitude of 0.2 mV to 0.35 V (rms) (potentiostatic
mode); 0.0002 to 0.35, steps of 0.0001 times applied current range (1)
(galvanostatic mode).
Supplied with the following data presentation: Nyquist, Bode, Admittance,
Dielectric, Mott-Schottky.
Supplied with the following data analysis techniques: Fit and Simulation,
Find circle, Element substraction.
3. Electrochemical Techniques Software
Should have user friendly ready-to-use methods.
Each method should be able to be saved into a user-defined database.
Should have easy to use graphical method editor.
Convenient tools like repeat loops, parameter links and increments,
predefined sets of values, drag and drop, and data analysis should be
included in the method.
Sampling and data acquisition settings should be able to be defined for
each command.
Data analysis should be allowed while the measurement is running.
Tools like individual axis scaling, overlays, multiple Y axes, plot additions,
zooming and rotation should be provided.
Each plot should be able to be saved as an image file or directly pasted
into a paper or a presentation file.
Should have build-in electrochemical spreadsheet to generate new data
and new plots.
Data analysis should be able to be saved into a user-defined database.
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Electroanalytical methods
Sampled DC Voltammetry
Normal Pulse, Differential Pulse and Differential Normal Pulse
Voltammetry
Square Wave Voltammetry
AC Voltammetry
Cyclic and Linear Sweep Voltammetry
Staircase potentiostatic and galvanostatic voltammetry, scan rate
: 1 uV/s to 200 V/s
Cyclic Voltammetry with Linear sweep
Stationary current voltammetry
Current Integration method
Hydrodynamic Linear Sweep Voltammetry
Bi-potentiostatic measurement
Recording of 2nd analog signal eg from EQCM or an pH electrode
Possibility to measure with respect to the Open circuit Potential
eg. Corrosion
Possibility to show Tafel plots.
iii)
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Chrono-methods
Chrono-amperometry, coulometry and potentiometry
Measurement rates up to 50kHz
Maximum of 10 potential or current levels.
Possibility to repeat the steps and save data.
Specification of current, charge or potential limits.
Automated recording of extra data points.
Bi-potentiostatic measurements.
Measurements at or with respect to OCP.
Should have at least 3 pretreatment potentials.
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Electrochemical detection
Used in HPLC and FIA.
Pulsed amperometric detection
DC-amperometry and differential pulse amperometry
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Potentiometric Stripping Analysis
Chemical stripping and constant current stripping with
measurement rates of 40kHz.
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Electrochemical Noise
Measurement at open circuit of noise and potential
iv)
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vii)
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Steps and Sweeps
A sequence of potential steps and linear sweeps can be
programmed
Max scan rate of 25V/s
Max sampling rate of 10kHz.
Max of 10 segments
4. FRA Software for Impedance Spectroscopy
The software should have the following features:
Frequency from 10µHz to 1MHz with a linear, logarithmic or square root
distribution.
Frequency scan dividable into subscans allowing the user to define
different amplitudes.
Single sine or super imposed multiscan (5 or 15) measurement.
Measurement at, or with respect to open circuit potential.
Oscilloscope or Frequency spectrum window to follow the applied and
measured frequencies during the measurement.
Able to do Hydrodynamic Impedance or Photo-Modulated Impedance
measurement.
Able to show Z” vs Z’ plots isotropically.
Plots options :
o Z’ vs Z’
o Y” vs Y’
o Bode plot
o Z’ and Z’ vs f
o Z’ and Z” vs ω or ω
o Y”/ω w vs Y’/ω
o Epsilon Plot
o Z’ vs ωZ”
o Z’ vs Z”/ ω
For Potential, Current or time scans :
o Z’ and Z” vs E, I or t
o Y’ and Y” vs E, I or t
o ωZ’ and ωZ” vs E, I or t
o Mott-Schottky plot
Data analysis for :
o Find Circle, to analyse semi-circles in the Nyquist or Z’-Z” plot
o Equivalent Circuit Fitting, based on the Circuit Description,
possible elements : Resistance, capacitance, Inductance,
Constant Phase Element, Warburg, Gerischer Impedance,
Hyperbolic tangent and Hyperbolic co-tangent elements.
o Kramers-Kronig test
E.
ESSENTIAL COMPONENTS & ACCESSORIES
The electrochemical and impedance analyzer should comprise of the
following essential components and accessories:
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A current booster module to increase the maximum current with the
following specification:
o Maximum compliance voltage: ± 20 V
o Maximum applied voltage: ± 10 V
o Maximum cell current: ± 10 A
o Accuracy: ± 300 uA
o System bandwidth: 10 kHz high speed
o Operation mode: Potentiostatic and galvanostatic
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Ag/AgCl Reference Electrode with double junction
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Pt Rod Counter Electrode
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A personal computer preloaded with Windows XP or Vista or
equivalent and Microsoft Office, with the following minimum
specifications:
o Intel Core 2 Quad 2.83GHZ (1333FSB / 12MBMB - Q9550)
processor
o Intel DG45 ID Original Motherboard
o Operating system to be compatible with equipment
o 4GB DDR2 800FSB RAM
o 500GB SATA Harddisk Drive
o At least 48 X DVD-RW Drive Support Double Layer
o 17” Wide Screen Flat Panel LCD Monitor
o 9500GT 512MB DDR3 Graphic Card
o Microsoft Keyboard
o Microsoft Optical Mouse
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F.
Should be supplied with one inkjet colour printer (u p to 4800 x 1200
optimised dpi, up to 23 ppm, integrated memory, hi-speed USB port,
A4 paper size and below).
The equipment must be accompanied with all other necessary
components, accessories and software/s needed to ensure successful
and proper functioning of the system, and to ensure full functionality of
the equipment for the user intended applications as highlighted earlier
in the essential features.
Should be provided with all necessary accessories for calibration
checking.
Should be provided with all relevant calibration charts (if any) in
English.
The tenderer shall be responsible for the installation; commissioning
and test run of the equipment before final acceptance. All cost shall be
borne by the tenderer.
The tenderer shall provide on-site training on:
o Fundamental and theory of corrosion electrochemistry.
o Operation and use of the instrument.
o Software familiarization.
o Routine and preventive maintenance of the equipment.
o Special training specific to the user intended applications of
the system should be proposed and provided.
STANDARD REQUIREMENTS AND INSTRUCTIONS
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The equipment supplied must be a brand new item with proper
serial number to prove it and must not be a used or a
reconditioned instrument.
The equipment must be fully installed and made fully functioning.
Maintenance, Service & Operating Manual and original Catalogue
in English must be provided, at least 2 copies.
The equipment supplied must be warranted against
manufacturing defects for at least 12 months from the date of
commissioning.
Free preventive maintenance service 1 x 6 monthly during the
warranty period
The supplier has to give information regarding their servicing
capabilities / after sales service for the equipment quoted.
On–Site training must be provided for operation, maintenance and
troubleshooting.
Quotation that does not quote prices exclusive of tax will not be
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considered.
All installation charges inclusive of electrical and builder’s works
must be borne by the supplier.
Service contract and software upgrading must be quoted
separately.
For all supplies, please offer the minimum required specifications
or better versions.
Recommendation of Award:
1) Name of Equipment : Electrochemical and Impedance Analyzer
2) Package No.:
2 – Analytical Equipment
3) Quantity (ies) :
1
4) Company Name :
Advanced Altimas Sdn. Bhd.
5) Bidder Code :
P2V2/17/18
6) Price (RM):
117,500.00
No.
Name
Position
1.
Professor Dr. Hamidi Abdul Aziz
Dean
2.
Assoc. Prof. Dr Badorul Hisham Abu Bakar
Deputy Dean
3.
Assoc. Prof. Dr. Megat Azmi Megat Johari
USM-IDB (MA0103) Central
Committee
4.
Assoc. Prof. Dr. Choong Kok Keong
Programme Chairman
5.
Mr. Zulkifly Hashim
Assistant Engineer
Signature of Technical Committee Members
Date