The eQCM 10M is a versatile electrochemical quartz crystal microbalance (EQCM) that accommodates any crystal from 1-10 MHz in any cell or holder. Its resolution allows you to detect mass changes on the ng/cm2 scale. This is less than a monolayer of material! Our system comes with everything you need to get started – the eQCM 10M, 5 MHz Au-coated crystals (5x), static cell, cables, manuals, and software.
eQCM 10M Features
- Any crystal from 1-10 MHz in any cell
- Detect ng/cm2
- USB Interface
- Integrated QCM and Gamry Potentiostat acquisition
- Impedance scanning gives both ƒs and ƒp, the series and parallel resonant frequencies
- Data Analysis in Gamry’s flexible and customizable Echem Analyst™
eQCM Applications
- Electroactive Polymers
- Li+ Intercalation
- Corrosion Studies
- Electrodeposition
- Self-Assembled Monolayers
- Antibody-Antigen Interactions
- Surfactant Adsorption
- Protein Adsorption
- Ion and Solvent Transport
The eQCM 10M rapidly scans a frequency window around the two resonant frequencies (these resonant frequencies are explained in our Basics of an eQCM Quartz Crystal Microbalance App Note). The advantage of scanning through the two resonant frequencies is that you no longer need to cancel the parasitic capacitance in order to maintain oscillation. Additionally, the relative impedance spectrum is displayed each time a data point is acquired, giving you insight into bubble formation on your electrode or improper cell setup. Having the two resonant frequencies also allows you to qualitatively see dissipation changes. When ƒs and ƒp respond similarly your film is rigid, however, when ƒs and ƒp respond differently the film is not rigid.
Resonator also allows you to adjust the driving amplitude of the crystal. This is especially important when working in an ionic liquid (IL) or a viscous solution where damping is especially high. The ability to manually increase the driving amplitude for heavily-loaded crystals offers a significant advantage over straight dissipation or time-resolved techniques.
Data analysis is done in our flexible and customizable Echem Analyst™. We give you a variety of plotting options to allow you to display the data as you want. You can plot straight mass change versus time, mass versus charge, mass versus potential, or a basic form of dissipation versus time.
Cleaning Crystals
A note about cleaning Quartz Crystal Microbalance crystals. We typically think of crystals as one-time use items but if you need to clean them, Pirhanna solution (the acidic one) can work well but take all of the necessary precautions when dealing with this solution. It is very dangerous and you should consult an MSDS and have proper safety training before using.
FREQUENCY MEASUREMENT
|
Range |
1– 10 MHz |
Resolution |
0.02 Hz |
|
|
ENVIRONMENTAL
|
Operating Temperature Range |
0 to 45°C |
Relative Humidity |
Maximum 90 (non-condensing)% |
Storage and Shipping Temperature |
-25 to 75°C |
Maximum Shipping Acceleration |
30G |
|
|
GENERAL
|
Power Input Voltage |
Range 10 to 14 Volts |
Power |
25W |
Dimensions |
175x 115x 80 mm |
Weight |
1 kg |
Dimensions of External Power Adapter |
120 x 55 x 30 mm |
Weight of External Power Adapter |
40 grams |
A PHE200 or Global license is necessary to have Resonator control any Gamry Reference or Interface potentiostat in version 6 of the software. No additional license is required in version 7 of the software.
System Requirements
- USB 2.0 Port
- Microsoft® Windows™ XP SP3/Vista/7/8/10 (32-bit or 64-bit)
Accessories for the eQCM Quartz Crystal Microbalance include:
5 MHz Crystals (Pack of 5)
The crystals below have a nominal electroactive area of 1.1 cm2 and a nominal area of overlap of 0.24 cm2. These crystals all have a Ti underlayer to improve adhesion.
The following 10 MHz crystals are for the discontinued Teflon Static Cell:
The crystals below have a nominal electroactive and area of overlap of 0.21 cm2. These crystals all have a Ti underlayer to improve adhesion.
Very interesting results.
Rating: 5.0 
Organization: IQUIMEFA-UBA-CONICET
Application Area: Development of biosensors
Incredible instrument.
Rating: 5.0 
Organization: IQUIMEFA-UBA-CONICET
Application Area: Biopolymers and nanotechnology
Would not be able to get it all done without the ease of this instrument.
Rating: 4.0 
Organization: University of Houston
Application Area: Mass loading of surface interaction with material
Great Instrument.
Rating: 4.0 
Organization: IQUIMEFA-UBA-CONICET
Application Area: Analytical sensor development
Great instrument, easy to use, very stable
Rating: 5.0 
Organization: Rowan University
Application Area: Materials chemistry and energy storage
Makes my research data collection easy!
Rating: 3.3 
Organization: University of Houston
Application Area: Determine Mass loading of Surfaces
Great equipment
Rating: 4.0 
Organization: University of the Punjab, Lahore, Pakistan
Application Area: electrochemistry
Excellent service and easy installation
Rating: 5.0 
Organization: University of Wisconsin-Platteville
Application Area: characterization of polymer film
Results are consistent. I can use device on many novel applications
Rating: 4.3 
Organization: Pamukkale University
Application Area: detecting bio molecules and conducting polymer applications
Good results
Rating: 4.3 
Organization: University of the Punjab, Lahore, Pakistan
Application Area: Electrochemistry
Such a small but useful, easy to use, practical, Mobile, and stable instrument.
Rating: 4.7 
Organization: Hungarian Academy of Sciences, Research Center for Natural Sciences, Institute of Materials and Environmental Chemistry
Application Area: electrochemistry, sensors, drug delivery, biosensors, adsorption, inhibition