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Professional Focus Concentration
2 Years
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| Brand Name : | Corrtest |
| Model Number : | CS901 |
| Payment Terms : | T/T, D/P |
| Delivery Time : | 5-10 working days |
4mm Ag Agcl Silver Silver Chroride Reference Electrode CS901
Ag AgCl reference electrode silver silver chloride electrode(CS901)
It consists of a Teflon cap with a AgCl coated Ag wire, a glass
tubing, and a porous Teflon tip sealed into the glass tubing.
Porous Teflon tip has the following advantages: slow solution leak
and more durability due to its perfect chemical inertness. However,
you should still take good care of the electrode. The most critical
issue is that the electrode should always be dipped in KCl
solutions when it is not in use. If you leave it in air by
accident, the solution inside the pores will dry out causing high
resistance (you will see noise increase or even potential out of
control if the tip is seriously dried out). The only way to restore
it is to fill it with solution and slowly push the solution through
the porous Teflon tip.
The reference electrode compartment (the glass tubing) is filled
with 3.5M KCl. You can fill with other concentration KCl. The
potential of the reference electrode versus the Standard Hydrogen
Electrode (0.0V) can be calculated from the activity (not
concentration) of Cl ion.
Before you use the reference electrode, you need to remove the cap
at the end of the electrode. Tap the tubing and make sure no air
bubble is trapped in the lower portion of the tubing. The electrode
should be dipped into 1M KCl solution immediately and left
overnight before use.
The solution in the compartment is refillable. To do that,
carefully unplug the Teflon cap by holding the glass tube with your
left hand and using your right thumb to push the edge of the white
cap towards the right. Do not pull on the cap and tube directly. It
may cause glass tubing to break. Next, use a syringe to refill both
the glass tubing and the white Teflon cap. The solution level
should be full. Tap the tubing and make sure that no air bubble is
trapped in the bottom of the tubing. Slowly insert the glass tubing
into the Teflon cap with Ag wire. Please insert very slowly. You
will see solution comes out through the tip. It is normal. If you
insert too fast, it will generate too much pressure and may cause
the porous Teflon tip to be popped out or damaged. After the glass
tubing is all the way in the cap, let it sit for a while so that
the pressure inside the tubing will be released and no solution
will further leak.
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