Product Description
The MultiEmStat is a versatile multi potentiostat with 4, 8 or 12 independent EmStat potentiostats. The channels can perform experiments independently of each other.
The MultiEmStat is conveniently connected by means of a single USB connection and controlled by MultiTrace. Each potentiostat has eight (EmStat3) or nine (EmStat3+) current ranges: 1 nA to 10 mA/100 mA with a resolution of 1 pA at the lowest current range and can automatically select the optimal current range.
Accessories
Standard packaging includes a shielded cable for each channel with connections for a working, a counter and a reference electrode by means of 2 mm banana connectors (crocodile clips included), a USB cable and an AC adapter. The four channel MultiEmStat3 will be delivered in a small housing which is USB powered for extra mobility.
For more information about the difference between a multiplexer, a multichannel device and a polypotentiostat, click here.
Techniques
The following techniques are supported by MultiEmStat.
Voltammetric techniques:
- Linear sweep voltammetry (LSV)
- Differential pulse voltammetry (DPV)
- Square wave voltammetry (SWV)
- Normal pulse voltammetry (NPV)
- Cyclic voltammetry (CV)
These methods can all be used in their stripping modes which are applied for (ultra-) trace analysis.
Techniques as a function of time:
- Chronoamperometry (CA)
- Pulsed amperometric detection (PAD)
- Multiple pulse amperometry (MPAD)
- Open circuit potentiometry (OCP)
- Multistep amperometry (MA)
Specifications
MultiEmStat3 is available as four channel in the small housing and 8 and 12 channel in the larger housing.
MultiEmStat3+ is available as 4, 8 or 12 channel and always comes in the larger housing.
| MultiEmStat version: |
3 |
3+ |
| dc-potential range |
± 3.000 V |
± 4.000 V |
| compliance voltage |
± 5 V |
± 8 V |
| dc-potential resolution |
0.1 mV |
0.125 mV |
| potential accuracy |
0.2 % |
0.3 % |
| current ranges |
1 nA to 10 mA (8 ranges) |
1 nA to 100 mA (9 ranges) |
| maximum current |
± 20 mA typical
and ± 15 mA minimum |
± 100 mA typical |
The current is measured using a zero resistance ammeter (ZRA).
| current resolution |
0.1% of current range, 1 pA at lowest current range |
| electrometer amplifier input |
> 100 Gohm // 4 pF |
| rise time |
approx. 100 μs |
| housing |
MultiEmStat3 4Ch: 8 cm x 12 cm x 3.5 cm |
|
other: 20 cm x 12 cm x 7 cm |
| weight |
MultiEmStat3 4Ch: 0.260 kg |
| interfacing |
USB |
| power |
external 5V adapter for MultiEmStat3 4Ch
external 9V adapter for all other versions |
| sensor connection |
shielded cable with circular connector for WE, Sense (MultiEmStat3+), RE and CE |
Software
MultiTrace is our standard software for multichannel instruments. It is based on PSTrace and comes standard on a CD as well as download. The channels can be controlled all at once or get individual commands. Also the scripting feature can be used individually or for all channels.
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