model:
Platinum electrode 10*10*0.1mm
Platinum electrode 10*10*0.2mm
Platinum electrode 10*15*0.1mm
Platinum electrode 10*15*0.2mm
Platinum electrode 10*20*0.1mm
Platinum electrode 10*20*0.2mm
Platinum electrode 15*15*0.1mm
Platinum electrode 15*15*0.2mm
Platinum electrode 20*20*0.1mm
Platinum electrode 20*20*0.2mm
Platinum mesh electrode 10*10mm
Platinum mesh electrode 10*15mm
Platinum mesh electrode 10*20mm
Platinum mesh electrode 15*15mm
Platinum mesh electrode 15*20mm
Platinum mesh electrode 20*20mm
Platinum electrode 5*5*0.1mm
Platinum electrode 5*5*0.2mm
10*10*0.1mm reinforced
Platinum electrode is generally used as a counter electrode and a working electrode
The electrode PTFE rod has a length of 80mm and a diameter of 6mm.
1. Before use, the electrode platinum sheet can be cleaned in chromic acid solution and then washed with distilled water.
2. If there is oil on the surface of the platinum sheet, it should be cleaned with acetone, then cleaned in chromic acid solution and distilled water.
Use and maintenance
1. Soak and clean the electrode surface with water before use. When measuring, it can be used in conjunction with various pH/mV meters, paired with calomel electrode or silver silver chloride, insert the electrode directly into the sample, and read when the potential is stable.
2. In-situ determination of soil, bottom mud, etc. must be particularly careful, not to deform the end or rough the surface, soak it in water when it is not used temporarily, and put it in a box if it is not used for a long time.
3. After the electrode has been used for a long time, apply 0.2MHc1v1—0.1MNac1—0.2% Na2SO3 mixture to heat the surface oxide film or adsorbate to 70°C for 2 hours, and then treat it in a 0.05m potassium hydrogen phthalate solution saturated with quinhydroquinone The middle detection potential E shall conform to the following formula:
E=455-0.09(t-25)—[59.1+0.2(t-25)pH
Among them: pH is the pH value of 0.05 potassium hydrogen phthalate solution at T°C.
Package Contents: 1 PCS .
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