Brand: CH Instruments | Category: Nanotechnology
CHI135 is the 25 mm spacer CH Instruments publish for the CHI130 thin layer flow cell. It is the only accessory in this group listed in packs, the published unit being four per pack.
| Parameter | Value |
|---|---|
| Listed size | 25 mm |
| Pack quantity | 4 |
| Application | Flow-cell spacer |
Selected part-specific CH Instruments catalogue details. Confirm exact part number, mating components and chemical compatibility before ordering; instrument measurement limits do not apply to accessories. Checked 2026-09-29.
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CHI140A is the spectroelectrochemical cell kit in the CH Instruments range, built around a thin layer quartz glass cell. The published kit sheet lists a platinum gauze working electrode, a platinum counter electrode, a Teflon cap and a 10 cm ETFE purge tube alongside the cell body. No reference electrode is included: CH Instruments name 012167 for aqueous Ag/AgCl work and 012171 for non-aqueous Ag/Ag+ work as the options.
CHI134 is the reference electrode built for the CHI130 thin layer flow cell, with a polyacetal plastic body that CH Instruments describe as having good mechanical tolerance and chemical resistance. The centre wire is silver and the tip, 4 mm long and 3.4 mm in diameter, acts as the liquid junction through a VYCOR glass frit. The published specification states it is made for organic solvent and suits mild solvents such as acetonitrile, that the electrolyte may be changed for HPLC use, and that the plastic does not stand up to strong solvents such as THF.
Published in full as the CHI150 Saturated Calomel Electrode (SCE), this reference electrode works on Hg2Cl2 + 2e = 2Hg + 2Cl- and is quoted at 0.241 V against NHE at 25 C. Its saturated KCl filling solution meets the test solution through a ceramic liquid junction, and the published drawing gives a 9.0 mm diameter upper chamber 37 mm long over a 5.3 mm diameter lower stem 50 mm long. CH Instruments instruct users to top up with saturated KCl when the level falls and to store the electrode dipped in saturated KCl after use.