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취급품목

Gateway to Electrochemistry

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제품명

eQCM-I Mini Quartz Crystal Microbalance with Impedance Measurement and Dissipation (QCM-D)

  • Quartz Crystal의 주파수 및 질량 변화 모니터링 가능
  • 다양한 고조파를 빠르고 순차적으로 측정
  • 제어 가능 온도 : 15°C ~ 60°C (±0.02°C)
  • 구성품 : eQCM unit with two channels (one channel is temperature controlled), QSH-014 QCM Sensor Holder (flow through type), QSHE-014 QCM Sensor Holder (flow through type) with \"leak free\" Ag/AgCl reference electrode, BioSense 3.xx Software (one user license)

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Technical Information

Measuring Principle

The QCM-I Mini unit is a high sensitivity mass sensor which measures
the change in frequency of a quartz crystal resonator and
as a label free biosensor it measures the “wet mass” of the
adsorbed layer in processes occurring at or near the sensor
surface. The measuring principle is based on impedance analysis
of the quartz crystal. The resonant frequency (fres) and the
bandwidth of the resonant conductance curve are determined.
The bandwidth or full width at half maximum (FWHM) is in direct
correlation with the quality factor (Q) which is by definition
the inverse of the well known dissipation (D).

Measurement Channels2
1st : Temperature controlled
2nd : Connection for a variety of external sensor-holder modules
Frequency Range1-80 MHz,up to the 13th overtone for a 5 MHz Crystal

Resonance Frequency
Sensitivity in Liquid

≤ 2 x 10-1 Hz

Dissipation Sensitivity
in Liquid

≤ 1 x 10-7

Mass Sensitivity in Liquid *

≤ 1 ng/cm2

Parameters Recorded
for each Overtone

Resonance Curve, Frequency, ΔFrequency, FWHM, ΔFWHM, Q,
Dissipation, ΔDissipation, Temperature, etc.

Temperature Control

Working Temperature15 oC to 65 oC
Temperature Stability± 0.02 oC
Temperature controlSet manually or via software

Fluidic and Sample

Flow Cell Volume~ 40 μl (typical with Ø14 mm crystals)
Wetted Parts PTFE, PEEK, SS, VITON (or Kalrez )
Sample LoadingCustomer Supplied or Integrated Options
Pump Customer Supplied, Syringe Pump or Integrated Peristaltic Options
Other Sample Cell Options

Electrochemical flow-cell, Open Cuvette, Immersion, Vacuum,
High-pressure, Remote Low-profile, Ellipsometry, Microscopy,
Custom...

Physical Dimensions
(without the computer)

Dimensions, weight180 mm x 175 mm x 68mm, 1.35 Kg

Software

BioSenseUniversal software platform for QCM & EC measurements
Import / Export of dataExport to third party software Excel, JPG, BPM, WMF etc. 
PC ControlUSB 2.0, Windows® 10 

Electrical

Power Supply12VDC power supply with universal input voltage
( 100V-240V AC / 50-60 Hz )
* The Sauerbrey relation is assumed to be valid.

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