Thermo Products 9678BNWP manual Sample Requirements

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Sample Requirements

Electrodes with an epoxy body should only be used in aqueous solutions.

Electrodes with a glass body may be used in non-aqueous solutions and solutions that contain organic solvents.

The ORP electrodes contain a silver/silver chloride (Ag/AgCl) reference that may become clogged in solutions that contain silver complexing or binding agents such as TRIS, proteins and sulfides. Frequent cleaning may be required when measuring solutions that contain these agents. Proteins cause the additional problem of coating the electrode, so extra care should be taken to keep the electrode clean while measuring samples that contain proteins.

Redox/ORP Electrode User Guide



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Contents User Guide Page Epoxy Refillable ORP/ATC Triode Cat. No Bnmd and 9180BN IntroductionRequired Equipment Sample Requirements Electrode Preparation for Gel-Filled Electrodes Electrode PreparationElectrode Preparation for Refillable Electrodes Refillable ORP Electrode ORP Standard Values Electrode CalibrationRedox/ORP Electrode User Guide Measurement Techniques Direct Measurements Electrode MeasurementsOxidation-Reduction Titrations References Typical Redox Titration Methods Unknown Interferences Suitable Titrants Titration Reaction Electrode Maintenance Cleaning Solutions Electrode Cleaning ProceduresGeneral Cleaning Disassembling the Sure-Flow Electrode Sure-Flow Electrode Cleaning Cat. No BnwpShort-term Storage up to one day Electrode StorageLong-term Storage over one day Reassembling the Sure-Flow ElectrodeMeter TroubleshootingElectrode Sample/ApplicationChecking Electrode Operation Assistance WarrantyOrdering Information Thermo Fisher Scientific