Thermo Fisher Scientific Ion Selective Electrodes Chloride - Manual (Page 4)

Instruction Manual Chloride Electrode
EUTECH INSTRUMENTS PTE LTD.
CHLORIDE ION ELECTRODE
INSTRUCTION MANUAL
GENERAL INSTRUCTIONS
Introduction
Eutech Instruments Chloride Ion Electrode is used to measure chloride ions in aqueous solutions
quickly, simply, accurately, and economically.
Required Equipment
1.
A pH/mV meter or an ion meter, either line operated or portable.
2.
Semi-logarithmic 4-cycle graph paper for preparing calibration curves when using the
meter in the mV mode.
3.
A magnetic stirrer.
4.
Eutech Chloride Ion Combination Epoxy-body Electrode, Code no. EC-CLO-03.
5.
Polishing Paper, Code no. EC-MIS-PP, to polish dirty or etched electrode membranes.
Required Solutions
1. Deionized or distilled water for solution and standard preparation.
2.
Eutech Ionic Strength Adjuster (ISA), 5M NaNO
3
, Code no. EC-ISA-CL1. To prepare this
solution from your own laboratory stock, half fill a 1,000 ml volumetric flask with distilled
water and add 425 grams of reagent-grade sodium nitrate, NaNO
3
. Swirl the flask to
dissolve the solid. Fill the flask to the mark with distilled water, cap, and invert the flask
several times to mix the contents. ISA is added at the rate of 2 ml of ISA to each 100 ml of
standard or sample to adjust the ionic strength to about 0.1M.
3.
Eutech Electrode Filling Solution, 1M/0.1M KNO
3
/KCl, Code no. EC-RE-018, for the EC-
CLO-03 chloride combination epoxy electrode. Eutech Electrode Filling Solution, 1M
KNO
3
Code No. EC-RE-013, for the ECR-04-HC double junction reference electrode or
the EC-CLO-02 chloride combination glass electrode.
4.
Eutech Chloride Standard, 0.1M NaCl, Code no. EC-SCS-CL1-BT. To prepare this
solution from your own laboratory stock, add 5.84 grams of reagent-grade sodium
chloride, NaCl, to a one liter volumetric flask about half-full of distilled water. Swirl the
flask to dissolve the solid. Fill to the mark with distilled water, cap, and upend the flask
several times to mix the solution.
5.
Eutech Chloride Standard, 1,000 ppm Cl
-1
, Code no. EC-SCS-CL2-BT. To prepare this
solution from your own laboratory stock, add 1.65 grams of reagent-grade sodium
4