1Instruction ManualHI 4110FLUORIDECOMBINATIONFLUORIDEHI 4010HI 4010HI 4010HI 4010HI 4010HI 4010HI 4110HI 4110HI 4110HI 4110HI 4110Fluoride IonSelectiv

1010. Tighten the electrode cap onto the body and fill elec-trode body until fill solution volume is just below fillhole.11. Position electrode in a H

11stabilized. This value should be less than the previ-ous noted (more negative).• Determine the difference between the two-mV values.An acceptable v

12For HI 4110 module replacement1. Drain the fill solution by pressing the upper cap.Rinse electrode with distilled or deionized water. Drain.2. Unscr

13If no fluoride complexing species are in the sample, TISABneedn’t be added at the same proportions. Add 1 partsTISAB to 100 parts sample or standar

14XII. XII. XII. XII. XII. Other Measurement TOther Measurement TOther Measurement TOther Measurement TOther Measurement Techniquesechniquesechniquese

15Five mL acetate buffer (3.7 M HOAC/0.76M 0AC- incomposition) is added to 100 mL of sample. A standardaluminum solution is first titrated with a fl

16MAN4110 10/02/R3 WARRANTY WARRANTY WARRANTY WARRANTY WARRANTYHanna Instruments Ion Selective Electrodes are warrant

2HI 4010 Fluoride Half-cellHI 4010 Fluoride Half-cellHI 4010 Fluoride Half-cellHI 4010 Fluoride Half-cellHI 4010 Fluoride Half-cellHI 4110 Fluoride Co

3III. III. III. III. III. Theory of OperationTheory of OperationTheory of OperationTheory of OperationTheory of Operation:::::The HI 4010 or HI 4110 f

4IV. IV. IV. IV. IV. Design elements of the HI 4010 and HI 4110Design elements of the HI 4010 and HI 4110Design elements of the HI 4010 and HI 41

5V. V. V. V. V. Equipment requiredEquipment requiredEquipment requiredEquipment requiredEquipment required:• Hanna HI 5315 double junction r

6Using volumetric pipettes and glassware make dilutions tobracket the concentration of the samples. Standards withconcentrations < 10-4 M (1.9 ppm

7• A slightly scratched crystal may benefit from a treat-ment with a fluoride containing toothpaste (withoutbaking soda). Lightly wipe the sensor tip

8VIII. VIII. VIII. VIII. VIII. Electrode PreparationElectrode PreparationElectrode PreparationElectrode PreparationElectrode PreparationHI 4

96. Reassemble electrode by gently pushing the innerassembly into the outer body, sliding spring downcable, and screwing cap into place. DO NOT TOUCHO