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Electrode Preparation

Calibration

Measurement

After Measurement

easurement

This chapter describes measurement.

Requirements for sample and
standard solutions ......................... 34

Measurement hints ........................ 35

Measurement units ........................ 35

Measurement operation................. 36

Содержание 6561S-10C

Страница 1: ...Instruction Manual Combination type Fluoride Ion Selective Electrode 6561S 10C ELECTRODE...

Страница 2: ...nge without notice Warranty and responsibility This product is not covered by warranty because it is a consumable item HORIBA Advanced Techno Co Ltd SHALL NOT BE LIABLE FOR ANY DAMAGES RESULTING FROM...

Страница 3: ...far as the safety and usage precautions for the product are observed Do not throw away this product without any good reason Unit name Hazardous substance Lead Pb Mercury Hg Cadmium Cd Hexavalent chrom...

Страница 4: ...esult in death or serious injury This is to be limited to the most extreme situations This indicates a potentially hazardous situation which if not avoided could result in death or serious injury This...

Страница 5: ...it contains important safety messages Precautions for chemicals Solutions used for calibration and measurement must not come in contact with the skin or consumed These solutions stimulate the eyes an...

Страница 6: ...ectrode Using any other internal solutions may cause measurement errors Do not get the electrode connector wet or touch it with dirty hands It may cause a failure Do not touch a hard surface with the...

Страница 7: ...This manual mainly discusses how to operate the meter to which the combination type fluoride ion selective electrode is connected Electrode Stand Instruction Manual This manual mainly discusses how t...

Страница 8: ......

Страница 9: ...y when use for first time 10 Filling with internal solution 12 Rinsing the electrode 15 Connecting the electrode to the meter 17 Calibration 19 Standard solutions 20 TISAB 21 Calibration operation 23...

Страница 10: ...bleshooting 53 When accurate measurement is not possible 54 Reference 59 Ion selective electrodes 60 Measurement principle of ion selective electrode 62 Characteristics of fluoride ion selective elect...

Страница 11: ...Fig 5 State of liquid junction of reference electrode 61 Fig 6 Relationship between monovalent cation concentration activity and electrode potential 63 Fig 7 Difference in state of solution depending...

Страница 12: ...oefficient for monovalent ion concentration 65 Table 5 Relationship between temperature of ion selective electrode and theoretical slope 68 Table 6 Relationship between temperature of chloride ion sel...

Страница 13: ...his chapter describes what you should know before using the product Confirmation of the items included in the package 2 About this product 3 Product features 3 System configuration 3 Names of parts 4...

Страница 14: ...ed items This product is a consumable item For details on purchasing an electrode and reagent refer to Consumables page 76 1000 mg L standard solution 50 mL 100 mg L standard solution 50 mL Internal s...

Страница 15: ...contamination of the sample solution by the internal solution outflow the interference on the electrode potential and so on Since the structure of the liquid junction movable sleeve type is capable of...

Страница 16: ...ion electrode tip against damage from gravel or other foreign matters If there is no risk of damage it is not required to attach it Ion selective membrane Liquid junction When the ion electrode tip is...

Страница 17: ...figure shows the procedure for measuring the F concentration 1 Measurement preparation 1 2 4 3 Meter Fill with internal solution page 12 Connect the electrode to the meter page 17 Attach the ion elec...

Страница 18: ...Measurement In the following cases perform conditioning of the electrode before calibration For details on conditioning refer to Conditioning of the electrode page 26 1 2 Perform calibration page 25...

Страница 19: ...measurement When the electrode will not be used for two weeks or longer store it as described on page 50 2 1 Rinse the electrode with pure water page 44 Discharge the internal solution from the electr...

Страница 20: ...8...

Страница 21: ...lectrode Preparation This chapter describes the preparation that must be performed before using the product Assembling the electrode only when use for first time 10 Filling with internal solution 12 R...

Страница 22: ...emble the electrode as described in the following procedure 1 Remove the protective cap 2 Remove the rubber cap The rubber cap will not be used again Dispose of it according to the local rules and reg...

Страница 23: ...11 Electrode Preparation Calibration Measurement After Measurement 3 Attach the ion electrode tip by turning it clockwise Ion electrode tip...

Страница 24: ...ement is performed in the state in which there is not much internal solution an inflow of sample solution into the electrode will result in accurate measurements no longer being possible Use the inter...

Страница 25: ...of the internal solution fill port 4 Fill the internal solution with a dropper Fill until the solution surface comes up to just below the internal solution fill port 5 Spread soft and clean lint free...

Страница 26: ...ion fill port It is best that the internal solution oozes out slightly If the outflow is extremely little the potential of the reference electrode will become unstable and susceptible to stir In such...

Страница 27: ...as described in the following procedure 1 Rinse the electrode with pure water 2 Wipe off the moisture Wipe off the moisture using soft and clean lint free paper or cloth If the ion selective membrane...

Страница 28: ...ystals of internal solution adhered to the area around the liquid junction If dirt and crystals of internal solution are adhered they may affect the outflow of internal solution Rinse the electrode wi...

Страница 29: ...rode to the meter For details on the connector of the meter to which the electrode will be connected refer to the instruction manual of the meter 1 Connect the electrode connector to the meter When di...

Страница 30: ...18...

Страница 31: ...Electrode Preparation Calibration Measurement After Measurement y Calibration This chapter describes calibration Standard solutions 20 TISAB 21 Calibration operation 23...

Страница 32: ...the package or available as consumables by HORIBA Advanced Techno 100 mg L F standard solution Use the standard solution included in the package or available as consumables by HORIBA Advanced Techno 1...

Страница 33: ...llowing ASTM D1179 method B 1 Pour 500 mL of pure water in a 1 L beaker 2 Add the following three to 1 3 Stir the solutions specified in 2 until they dissolve 4 Cool down to room temperature 5 Add 5 N...

Страница 34: ...a 1 L beaker 2 Add the following three to 1 3 Stir the solutions specified in 2 until they dissolve 4 Cool down to room temperature 5 Transfer the solution prepared in 4 to a 1 L volumetric flask and...

Страница 35: ...efore the calibration operation Filling with internal solution page 12 Rinsing the electrode page 15 Perform conditioning before the first use before use after storage for two weeks or longer or if th...

Страница 36: ...solution into a 100 mL beaker 2 Add 25 mL of TISAB 3 Stir the solution slowly with a magnetic stirrer Set the valence as shown in the table on the right Setting item Setting value Valence 1 Always use...

Страница 37: ...ker 2 Add 25 mL of TISAB 3 Slowly stir the solution with a magnetic stirrer 5 Rinse the electrode with pure water Additive amount of TISAB In the case using different volume from the example note that...

Страница 38: ...cloth against the ion selective membrane lightly so as to soak up the water Conditioning of the electrode In the following cases perform conditioning of the electrode before calibration Before the fir...

Страница 39: ...junction Do not touch the stir bar with the electrode It may damage the electrode Make sure that the rubber stopper of the internal solution fill port is open during calibration If it is closed the in...

Страница 40: ...erform the first calibration as described in the Meter Instruction Manual 11 When the first calibration is finished take out the electrode from the solution for calibration 12 Rinse the electrode with...

Страница 41: ...ly to remove the moisture the ion selective membrane may tear or static electricity may be generated resulting in a measurement errors Press the cloth against the ion selective membrane lightly so as...

Страница 42: ...truction Manual When the second calibration is finished the slope of the electrode is displayed 17 Check the slope on the meter For details on how to check the slope refer to the Meter Instruction Man...

Страница 43: ...pure water Check that slope is at least 80 If the slope is less than 80 the measurement may not be performed accurately The possible causes of calibration failure are Dirt on the ion selective membra...

Страница 44: ...the moisture the ion selective membrane may tear or static electricity may be generated resulting in a measurement errors Press the cloth against the ion selective membrane lightly so as to soak up th...

Страница 45: ...aration Calibration Measurement After Measurement Measurement This chapter describes measurement Requirements for sample and standard solutions 34 Measurement hints 35 Measurement units 35 Measurement...

Страница 46: ...kept at 50 C or less Exceeding 50 C may cause electrode deterioration The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the temp...

Страница 47: ...lution comes up to the liquid junction The measurable pH range differs depending on the type and structure of the ion selective electrode The pH range is generally smaller when the concentration of th...

Страница 48: ...eration The calibration characteristics vary depending on the temperature The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the t...

Страница 49: ...the stirring speed so that the stir bar will rotate 3 or 4 turns per second If swirling occurs on the surface the stirring speed is too fast Reduce the speed to a level where swirling does not occur A...

Страница 50: ...d in step 1 Place the electrode fully into the sample solution so that the solution comes up to the liquid junction If the ion selective membrane is rubbed severely to remove the moisture the ion sele...

Страница 51: ...t If it is closed the internal solution does not ooze out very much from the liquid junction As a result the potential of the reference electrode will become unstable and susceptible to stir It is rec...

Страница 52: ...8 When the measurement of the ion concentration is finished take out the electrode from the sample solution 9 Close the rubber stopper of the internal solution fill port 10 Rinse the electrode with p...

Страница 53: ...g soft and clean lint free paper or cloth If the ion selective membrane is rubbed severely to remove the moisture the ion selective membrane may tear or static electricity may be generated resulting i...

Страница 54: ...42...

Страница 55: ...Electrode Preparation Calibration Measurement After Measurement After Measurement This chapter describes cleaning of the electrode after measurement How to clean the electrode 44...

Страница 56: ...an the electrode Clean the electrode after use as described in the following procedure 1 Open the rubber stopper of the internal solution fill port View video View video Dropper Item to be prepared Ru...

Страница 57: ...tinue pressing from above until all of the internal solution is discharged Extracting from the internal solution fill port Turn the electrode upward and extract the internal solution with a dropper Wh...

Страница 58: ...the moisture using soft and clean lint free paper or cloth If the ion selective membrane is rubbed severely to remove the moisture the ion selective membrane may tear or static electricity may be gene...

Страница 59: ...nd crystals of internal solution adhered to the area around the liquid junction If dirt remains repeat steps 4 and 5 7 Attach the protective cap Do not get water and foreign matters inside of the prot...

Страница 60: ...48...

Страница 61: ...nce This chapter describes the storage procedure of the electrode as well as the lifespan and replacement procedure of each part Storage 50 Main unit of electrode 50 Consumables 51 Consumables and rep...

Страница 62: ...and discharge the internal solution After Measurement page 43 2 Attach the protective cap Do not get water and foreign matters inside of the protective cap when attaching it to the electrode It may s...

Страница 63: ...and ion electrode tip are not repairable parts Service life Replace after approx 400 hours Ion electrode tip Replace consumables at the period whichever occurs first approx one year after purchase or...

Страница 64: ...nation type fluoride ion selective electrode including the ion electrode tip 3200693774 Use this up before the expiration date displayed on the bottle Use this up before the expiration date displayed...

Страница 65: ...Troubleshooting Troubleshooting This chapter describes the measures to take when accurate measurement is not possible When accurate measurement is not possible 54...

Страница 66: ...ave almost the same temperature Match the temperature as close as possible by for example using a thermostatic bath The temperature difference may cause measurement errors Requirements for sample and...

Страница 67: ...any air bubbles remaining on the ion selective membrane If air bubbles remain on the ion selective membrane it may result in inaccurate measurement Note on page 40 Is a solution at a temperature outs...

Страница 68: ...the standard solution with water other than pure water will cause measurement errors Standard solutions page 20 Is calibration performed before each measurement Perform calibration before each measur...

Страница 69: ...pening the bottle Furthermore do not return the standard solution to its original container after it has been used once Consumables page 51 Is the amount of the discharging internal solution appropria...

Страница 70: ...58...

Страница 71: ...lectrodes 60 Measurement principle of ion selective electrode 62 About activity 64 Characteristics of fluoride ion selective electrode 66 Measurement range 66 Impact of pH 67 Impact of temperature 68...

Страница 72: ...ion selective electrode where two electrodes are integrated Fig 4 Structure of combination type ion selective electrode Electrodetype Electrode function Ion selective electrode An electromotive force...

Страница 73: ...ple solution or standard solution as a mechanism of generating such a stable potential The stable potential with almost no change V 0 can be generated by the diffusion of the outflow of the internal s...

Страница 74: ...ation measurement using an ion selective electrode 2 303 RT nF is the change of the electrode potential generated when the ion concentration activity is changed by a factor of ten times and is referre...

Страница 75: ...ionship between monovalent cation concentration activity and electrode potential To perform the above quantitative analysis using an ion selective electrode either 1 use an ion meter or meter with an...

Страница 76: ...red in the sample solution which can be represented by the Nernst equation page 62 According to the above equation if the potential gradient is determined by the calibration using the standard solutio...

Страница 77: ...10 3 mol L the activity coefficient becomes lower than 1 If the activity coefficient becomes lower than 1 activity ion concentration an error occurs in the potential measurement A TISAB is used to re...

Страница 78: ...of around 1 10 1 mol L and a minimum of around 1 10 6 mol L to 1 10 5 mol L Furthermore when lower concentration is measured where the linearity is not established perform calibration at two points in...

Страница 79: ...lope of the ion selective electrode or parallel shifting of the calibration curve To prevent these effects set the pH to an appropriate value in advance and keep it constant One simple method to set t...

Страница 80: ...adient is The standard solution in calibration and the sample solution in measurement shall have almost the same temperature Match the temperature as close as possible Table 5 Relationship between tem...

Страница 81: ...ce before using the electrode Impact of stirring The impacts on the measurement of the electromotive force by stirring the sample solution are for example slow response inability to measure the low co...

Страница 82: ...hat may form compounds with poor solubility or may form complex salts with the structure material of the ion selective membrane are likely to have a significant impact whereas in the case of liquid me...

Страница 83: ...to reach a reading value that is 95 stabilized is within 30 seconds approximately in the case of a standard solution with a concentration ranging from 10 mg L to 100 mg L Impact of light With some typ...

Страница 84: ...t This reduces the errors in the ion concentration measurement due to the electromotive force changes caused by the temperature changes of the ion selective electrode and reference electrode Measureme...

Страница 85: ...Material Material This chapter describes the specifications external dimensions and consumables of the product Specifications 74 External dimensions 75 Consumables 76...

Страница 86: ...range differs depending on the ion concentration 3 This is the electrode potential gradient in the calibration using the 10 mg L and the 100 mg L standard solutions at 25 C Item Description Operating...

Страница 87: ...75 Material External dimensions Unit mm 16 5 O D 18 85 150...

Страница 88: ...e ion selective electrode 6561S 10C 3200693774 Fluoride ion selective electrode tip 7661S Electrode tip 3200693606 1000 mg L fluoride ion standard solution 500 F SH 500 mL 3200697163 100 mg L fluoride...

Страница 89: ...t jp For any questions regarding this product please contact your local agency or inquire from the following website http global horiba com contact_e index htm 31 Miyanonishi cho Kisshoin Minami ku Ky...

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