The name FlexCell is chosen since it emphasizes the versatility and serviceability of this thin-layer flow cell in the Antec program. With its unrivaled design working electrodes can be serviced or replaced in a few minutes. The low cost of ownership is attributed to the replacement of only the working electrode disc. The same holds for switching electrode material for different applications using the same flow cell. This makes the Flexcell suitable for all sorts of electrochemical analyses like the usual biogenic amines (glassy carbon), but also carbohydrates (gold), peroxides (platinum), halides (silver), sulfides (Magic Diamond) etc.
A FlexCell with stainless steel AUX is available for all USP/EP methods that specifically mention a 3-step pulse method and metal AUX. This is a short list of the EP and USP methods:
Part number is 102.4325EP - Flexcell Au HyREF, SS AUX.
Detection of carbohydrate moieties is done under alkaline conditions using a gold working electrode and pH inert HyREF reference electrode. The Flexcell with easy replaceable gold working electrode is particularly useful for some USP/EP methods that still mention the PAD mode with a traditional 3-step pulse. The gold electrode is slowly 'consumed' by the pulse process and once it is below the flat surface of the electrode it is easily taken out and polished using the special kit for metal electrodes (pn 250.1045 - Polishing kit for metal WE). When the wear is too much a gold disc is replaced by a new one. With the DECADE Elite using a 'mild' 4-step pulse this process of electrode wear is really much slower. Under such conditions the Sencell can be used as well. Unfortunately a few USP/EP specifically mention the 3-step pulse settings. In such case the Flexcell is the right choice.
Apart from the above mentioned carbohydrate application, the Flexcell has another feature that makes it special. The total cell volume is less than 1 µL, which makes the Flexcell suitable as an electrochemical reactor in-line with other detectors or flowcells. For example, in the analysis of Azithromycin a dual flowcell is required and the Flexcell is used in-line prior to detection with a Sencell.
|Flexcell BDD HyREF
Flexcell GC HyREF
Flexcell Pt HyREF
Flexcell Au HyREF
Flexcell Ag HyREF
|Flexcell GC sb
Flexcell Pt sb
Flexcell Au sb
Flexcell Ag sb
|Flexcell GC ISAAC
Flexcell Pt ISAAC
Flexcell Au ISAAC
Flexcell Ag ISAAC
||Flexcell WE disc GC (glassy carbon)
|102.5022||Flexcell WE disc Pt (platinum)|
|102.5027||Flexcell WE disc Au (gold)|
|102.5032||Flexcell WE disc Ag (silver)|
|102.5037||Flexcell WE disc Cu (copper)|
|102.5050||Flexcell WE disc BDD (diamond)|