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취급품목

Gateway to Electrochemistry

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제품명

QCM-I 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 : 4°C ~ 80°C (±0.02 °C)
  • 구성품 : QCM Unit with two temperature controlled channels, QCM Sensor Holder (flow through type) 2 pc, BioSense 3.xx Software (one user license), Sample Injection System with Semi-automatic injection valve

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TECHNICAL INFORMATION

Measuring Principle

The QCM-I 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 Channels1-4
Frequency Range1-80 MHz,up to the 13th overtone for a 5 MHz Crystal
Working Temperature

4° C to 80° C, controlled manually or via software,
stability ± 0.02° C

Sample Loading

Sample injection with external syringe or peristaltic pump unit
controlled manually or by BioSense software, and Rheodyne
Model 9725 manual injector valve, or Rheodyne MX series
semiautomatic switching valve.
Optional external Auto sampler unit is available

Flow Cell Volume

~ 40 µl (typical with Ø14 mm crystals)
Typical Flow Rates0.01µl/min - 35ml/min with external syringe pump,
Syringe size 1-60 ml
Sample Volume 1 to 2000 µl (depends on installed loop volume)
Wetted parts PTFE, PEEK, SS, VITON or Kalrez

MEASUREMENT SENSITIVITY

Standard Resonance Frequency sensitivity~2 x 10-1 Hz
Standard Dissipation Sensitivity in Liquid~ 1 x 10-7
Mass Sensitivity in Liquid≤ 1 ng/cm2

SENSORS

Sensor Crystal5 MHz, AT-cut, modular sensor holder accommodates
either 14 mm or 1” inch diameter crystals
See more details inQCM sensor datasheets.

SOFTWARE

BioSense Universal software platform for OWLS, QCM & EC measurements
See more details in BioSense datasheet.
Import/Export of the measured dataBetween separate BioSense software and export to third party software
Excel, JPG, BPM, WMF etc.
PC RequirementUSB 2.0, works with MS Windows® 7 or 8 or 10

ELECTRICAL

Supply VoltageDC power supply with universal input voltage from
100V to 240V AC & 50 to 60 Hz.
위의 모든 사양은 사전 예고 없이 변동될 수 있습니다.
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