Sensors and sample handling system

  QSense Initiator QSense Explorer QSense Analyzer QSense Pro

Number of sensors

 1  1  4  8 (4 parallel in flow)

Volume above each sensor

 ~ 40 μl

 

 ~ 40 μl  ~ 40 μl  ~ 15 μl

Minimum sample volume

  ~ 200 μl  ~ 200 μl  ~ 200 μl  ~ 50 μl

Working temperature 

± 0.02 *A

 20-45 

°C

 15-65 °C  15-65 °C  4-70 °C

Mimimum dispense volume

 -  -  -  1μl*

Sensors

 Gold, SiO2, Ti and other metals, oxides, glass, polymers, etc.   

Measurement Characteristics

  QSense Initiator QSense Explorer QSense Analyzer QSense Pro

Maximum time resolution

 

~ 4 data points per second C

 ~ 200 data points per second D  ~ 200 data points per second D  ~ 200 data points per second D

Maximum mass sensitivity in liquid

 -  ~ 0.5 ng/cm2E  ~ 0.5 ng/cm2E  ~ 0.5 ng/cm2E

Normal mass sensitivity in liquid

~ 1.8 ng/cm2 ~ 1.8 ng/cm2F ~ 1.8 ng/cm2G ~ 1.8 ng/cm2G

Maximum dissipation sensitivity in liquid

- ~0.04 x     

Normal dissipation sensitivity in liquid

 ~0.1 x 10-4  ~0.1 x 10-6F  ~0.1 x 10-6G   ~0.1 x 10-6G

Software

  QSense Initiator QSense Explorer QSense Analyzer QSense Pro

Analysis software

   QSense Dfind QSense Dfind QSense Dfind

Output parameters

Frequency, dissipation, Sauerbrey mass Frequency, dissipation, modeled values of mass, thickness and viscoelasticity.

Import/export

Excel, BMP, JPG, WMF, GIF, PCX, PNG, TXT
  QSense Initiator QSense Explorer QSense Analyzer QSense Pro

Electronics unit (HxWxL in cm)

 18x36x21 18x36x21 18x36x21 70x67x57 

Chamber (HxWxL in cm)

5x10x15 5x10x15 12x23x34

A The temperature stability depends on variations in how the ambient temperature affects the warming or cooling of the chamber.
B Smallest sample volume to pick up and dispense. Note that the smallest volume needed for measurement is 50 µl.
C Two data points per second for each harmonic.
D One sensor, one frequency.
E Data from one sensor in single frequency mode. One data point collected every 5 seconds. The Sauerbrey relation is assumed to be valid.
F Data from multiple frequency modes (all harmonics). Four data points are collected within 1 second. The Sauerbrey relation is assumed to be valid.
G Data from all sensors in multiple frequency modes (all harmonics) are collected within 1 second. The Sauerbrey relation is assumed to be valid

All specifications are subject to change without notice.