Thermo-fisher-scientific Ion Selective Electrodes Lead User Manual

EUTECH INSTRUMENTS PTE LTD. INSTRUCTION MANUAL LEAD ION ELECTRODE

Low Level Lead Determination (using a pH/mV meter) This procedure is recommended for solutions with lead concentrations of less than 1.0X10-6M. If t

Instruction Manual Lead Electrode 9reading has stabilized, record the mV reading and determine the concentration from the low level calibration cu

Titration Titration is a very accurate determination of total lead or sulfate ion concentration. This method makes use of the electrode as an endpoin

Instruction Manual Lead Electrode 11Titration of Sulfate Titration of sulfate ion with lead perchlorate make use of the lead ion electrode as a s

6. The sulfate ion concentration from the unknown is calculated as follows: Vt Mt

Instruction Manual Lead Electrode 13ELECTRODE CHARACTERISTICS Reproducibility Electrode measurements reproducible to ±2% can be obtained if the

30 30.07 40 31.07 50 32.06 If changes in temperature occur, the electrodes should be re-calibrated. The temperature range for the E

Instruction Manual Lead Electrode 15 The lower limit of detection is influenced by the slight water solubility of the electrode pellet. Refer to F

The activity, X, represents the effective concentration of free lead ion in the solution. Both bound, Cb, and free, Cf, lead ions are included in the

Instruction Manual Lead Electrode 17TROUBLESHOOTING GUIDE The goal of troubleshooting is the isolation of a problem through checking each of the

TABLE OF CONTENTS GENERAL INSTRUCTIONS ...1 In

Technique Be sure that the electrode's limit of detection has not been exceeded. Be sure that the analysis method is clearly understood and is co

Instruction Manual Lead Electrode 19TROUBLESHOOTING HINTS Symptom Possible Causes Next Step Out of Range de

Low Slope or standards contaminated prepare fresh standards No Slope or incorrectly made stan

Instruction Manual Lead Electrode 21SPECIFICATIONS Concentration Range: 10-1M to 10-6M Pb+2 (20,700 to 0.2 ppm Pb+2) p

Instruction Manual Lead Electrode 1GENERAL INSTRUCTIONS ...Error! Bookmark not defined. I

EUTECH INSTRUMENTS PTE LTD. LEAD ION ELECTRODE INSTRUCTION MANUAL GENERAL INSTRUCTIONS Introduction Eutech Instruments Lead Ion Electrode is used

Instruction Manual Lead Electrode 3Pb(ClO4)2·3H2O. Swirl the flask gently to dissolve the solid. Fill the flask to the mark with distilled water,

3. Adjust the meter to the concentration of the standard and fix the value in the memory according to the meter manufacturer's instructions. 4.

Instruction Manual Lead Electrode 5The temperature of the standard solutions and of the sample solutions should be the same and below 80oC. About

5. Using the semi-logarithmic graph paper, plot the mV reading (linear axis) against the concentration (log axis). Extrapolate the calibration curve

Instruction Manual Lead Electrode 7Direct Measurement of Lead (using an ion meter) 1. By serial dilution of the 0.1M or l,000 ppm lead standard,