Electrochemistry: Potentiostat, Galvanostat, EIS, FC test station

Quartz Crystal Analyzer (QCA922)

The instrument monitors both the resonant frequency and resonant resistance which are also reflected on the two analog outputs. Data collection can be easily done with the SP-150, VSP, VMP3 using a small optional DB9-8BNC cable (Ref: 092-22/1) (see Application Note #13).

Example of EQCM measurements:
Polypyrrol film growth on gold quartz electrode during successive CVs	Resonant frequency and resonant resistance recorded in EC-Lab® software.

The use of 5 or 9 MHz quartz crystals is possible depending on the calibration (5 or 9 MHz) performed at the factory at no charge when purchased.

Main unit

Gate Time	Variable (0.1, 1.0, 10.0 s)
Frequency range	1 MHz – 10 MHz Resolution: 0.1 Hz
Resonant Resistance Range	10 – 16 Ω Resolution: 0.1 Ω
Display	40 Digits x 2 rows
Interface	IEEE-488, RS-232C
Size	260 x 88 x 230 mm
Weight	3.3 kg
Temperature	0 - 40°C
Power consumption	100 - 120 V AC, 230 - 240 V AC, 50 - 60 Hz, (15 W)
ΔF Output	Full Scale: ± 10 V (12 bit) ± 200 Hz / ± 2 kHz / ± 20 kHz / ± 200 kHz
Resistance Output	Full Scale: 0-10 V (11 bit) 1 / 2 / 4 / 8 / 16 kΩ

 

Ordering information Important: Items "SE-QCA922-00" & "SE-QCA922-10" are both needed to do QCA measurements, as well as a resonator holder (Static and Flow QCA cell, Dip cell, Well Cell or Transparent well cell) and Quartz Crystals resonators.
Ref.	Description
SE-QCA922-00	Quartz Crystal Analyser 9 MHz (or 5 MHz) main unit
SE-QCA922-10	Adapter cable

Resonator Holder

Various resonator holders are proposed in order to fit with user's set-up.

	Static and Flow QCA Cell (Ref: 092-QCA-FC)	Dip Cell (Ref: SE-CL3)	Well Cell (Ref: SE-CL4)	Transparent Well Cell (Ref: SE-CL5)
Size: Weight: Well Capacity Temperature: made of:	34.5 x 35.7 x 26.5 mm 96 g 300 µL 80°C PEEK – Stainless steel - Teflon	20 x 25.5 x 12 mm 9 g 0 – 40 °C PVDF	20 x 25.5 x 22 mm 18 g 750 µL 0 – 40 °C PVDF	20 x 25.5 x 17 mm 3 g 250 µL 0 – 40 °C PVC

Static and Flow QCA Cell

The Static and Flow QCA cell (092-QCA-FC) is especially designed to fit with the QCA922. This cell can be used in static mode or in flow mode.

This Static and Flow QCA cell is really convenient and easy to use (or to dismantle). Two O-rings around the quartz ensure airtightness and avoid leakage. Teflon part and sliding stainless steel part maintain O-rings and quartz together. This cell is robust and can be used many times without damage; moreover it is possible to work with organic solvent such as acetonitrile.  

It is also possible to use this cell in flow with a peristaltic pump. The design of the cell is well adapted to this working mode, special connections are provided with the cell.

Counter (A-002222) and reference (A-012167 or A-012171) electrodes must be purchased separately.

Spare parts
Ref.	Description
SE-CLOV	O-ring made of Viton for SE-CL, S6, 10 pieces
SE-CLOP	O-ring made of Perfluoro for SE-CL, S6, 10 pieces

Quartz Crystals Resonator

A wide range of resonators is available in order to meet the need of each user. All resonators available are listed below.

fo = 5 or 9 MHz (depending on the set frequency of the QCA922)
Cut: AT
Surface area of the Quartz: 7.9 x 7.9 mm = 62.4 mm2
Materials: Au, Ag, Al, C, Cu, Mo, Ni, Ti, Pt, SiO2, Stainless Steel, ITO
Surface Area of the electrode: 0.196 mm2
Temperature: -20 – 70 °C

Ref. example: SE-9AU-M

It is possible to purchase the quartz part and the lead wire separately. In this case, a complete quartz electrode includes a separated quartz (ref: SE-9MM-XS) and lead wire (ref: SE-LEAD/2).

 

Nomenclature of Quartz Crystals Resonator:

Example: SE-9AG-MS/1

• 9: fo = 9 MHz
• AG: Electrode in Ag
• M: Mirror finish (E: Etching finish - P: Polish Finish)
• S: Separated
• /1: 30 pieces (/2: 50 pieces - /3 100 pieces)

f0 = 5 MHz (calibration at 5 MHz in factory with no charge when purchased)
Ref.	Description
SE- 5AU/2	Resonators 5 MHz Gold Electrode (50 pcs)
SE- 5PT/2	Resonators 5 MHz Platinum Electrode (50 pcs)
SE- 5SS/2	Resonators 5 MHz Stainless Steel (SUS304) Electrode (50 pcs)

 

f0 = 9 MHz
Ref.	Description
SE- 9AU-E/1	Resonators 9 MHz Gold Electrode Etching finish (30 pcs)
SE- 9AU-E/3	Resonators 9 MHz Gold Electrode Etching finish (100 pcs)
SE- 9AU-P/1	Resonators 9 MHz Gold Electrode Polish finish (30 pcs)
SE- 9AU-P/3	Resonators 9 MHz Gold Electrode Polish finish (100 pcs)
SE- 9AG	Resonators 9 MHz Silver Electrode (25 pcs)
SE- 9AL	Resonators 9 MHz Aluminium Electrode (25 pcs)
SE- 9AU	Resonators 9 MHz Gold Electrode (25 pcs)
SE- 9C	Resonators 9 MHz Graphite Electrode (25 pcs)
SE- 9CU	Resonators 9 MHz Cupper Electrode (25 pcs)
SE- 9MO	Resonators 9 MHz Molybdenum Electrode (25 pcs)
SE- 9NI	Resonators 9 MHz Nickel Electrode (25 pcs)
SE- 9PT	Resonators 9 MHz Platinum Electrode (25 pcs)
SE- 9SI	Resonators 9MHz Silicium Electrode (25 pcs)
SE- 9SO	Resonators 9 MHz Silicium Oxide Electrode (25 pcs)
SE- 9SS	Resonators 9 MHz Stainless Steel (SUS304) Electrode (25 pcs)
SE- 9TI	Resonators 9 MHz Titanium Electrode (25 pcs)
SE- 9AG-S	Resonators 9 MHz Silver Electrode Separated lead wire (25 pcs)
SE- 9AL-S	Resonators 9 MHz Aluminium Electrode Separated lead wire (25 pcs)
SE- 9AU-S	Resonators 9 MHz Gold Electrode Separated lead wire (25 pcs)
SE- 9C-S	Resonators 9 MHz Graphite Electrode Separated lead wire (25 pcs)
SE- 9CU-S	Resonators 9 MHz Copper Electrode Separated lead wire (25 pcs)
SE- 9MO-S	Resonators 9 MHz Molybdenum Electrode Separated lead wire (25 pcs)
SE- 9NI-S	Resonators 9 MHz Nickel Electrode Separated lead wire (25 pcs)
SE- 9PT-S	Resonators 9 MHz Platinum Electrode Separated lead wire (25 pcs)
SE- 9SI-S	Resonators 9 MHz Silicium Electrode Separated lead wire (25 pcs)
SE- 9SO-S	Resonators 9 MHz Silicium Oxide Electrode Separated lead wire (25 pcs)
SE- 9SS-S	Resonators 9 MHz Stainless Steel (SUS304) Electrode Separated lead wire (25 pcs)
SE- 9TI-S	Resonators 9 MHz Titanium Electrode Separated lead wire (25 pcs)
SE- 9AG-M	Resonators 9 MHz Silver Electrode Mirror finish (25 pcs)
SE- 9AL-M	Resonators 9 MHz Aluminium Electrode Mirror finish (25 pcs)
SE- 9AU-M	Resonators 9 MHz Gold Electrode Mirror finish (25 pcs)
SE- 9C-M	Resonators 9 MHz Graphite Electrode Mirror finish (25 pcs)
SE- 9CU-M	Resonators 9 MHz Copper Electrode Mirror finish (25 pcs)
SE- 9IT-M	Resonators 9 MHz ITO Electrode Mirror finish (25 pcs)
SE- 9MO-M	Resonators 9 MHz Molybdenum Electrode Mirror finish (25 pcs)
SE- 9NI-M	Resonators 9 MHz Nickel Electrode Mirror finish (25 pcs)
SE- 9PT-M	Resonators 9 MHz Platinum Electrode Mirror finish (25 pcs)
SE- 9SI-M	Resonators 9 MHz Silicium Electrode Mirror finish (25 pcs)
SE- 9SO-M	Resonators 9 MHz Silicium Oxide Electrode Mirror finish (25 pcs)
SE- 9SS-M	Resonators 9 MHz Stainless Steel (SUS304) Electrode Mirror finish (25 pcs)
SE- 9TI-M	Resonators 9 MHz Titanium Electrode Mirror finish (25 pcs)
SE- 9AG-MS	Resonators 9 MHz Silver Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9AL-MS	Resonators 9 MHz Aluminium Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9AU-MS	Resonators 9 MHz Gold Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9C-MS	Resonators 9 MHz Graphite Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9CU-MS	Resonators 9 MHz Copper Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9IT-MS	Resonators 9 MHz ITO Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9MO-MS	Resonators 9 MHz Molybdenum Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9NI-MS	Resonators 9 MHz Nickel Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9PT-MS	Resonators 9 MHz Platinum Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9SI-MS	Resonators 9 MHz Silicium Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9SO-MS	Resonators 9 MHz Silicium Oxide Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9SS-MS	Resonators 9 MHz Stainless Steel Electrode Mirror finish Separated lead wire (25 pcs)
SE- 9TI-MS	Resonators 9 MHz Titanium Electrode Mirror finish Separated lead wire (25 pcs)

 

Others
Ref.	Description
SE- LEAD/2	Resonators Lead wire No sputter (50 pcs)
SE- 9Q/2	Resonators 9 MHz No sputter No lead wire (50 pcs)
SE- 9Q-M/2	Resonators 9 MHz No sputter Mirror finish No lead wire (50 pcs)

Options

When the QCA922 is used as a standalone unit (without potentiostat), the WinQCM software (ref: SE-WQCM) can be used to record data.

The connection between the computer and QCA922 is of GPIB type. A GPIB-USB-HS (ref: GPIB-USB) converter from National Instruments is required.