{"product_id":"horiba-ion-selective-electrode-kit","title":"Horiba Ion-Selective Electrode Kit","description":"\u003cp\u003eHORIBA combination ion-selective electrodes measure a specific ion directly in solution, in millivolts converted to concentration against a two-point calibration. Each one ships as a complete working kit rather than a bare electrode, so you can calibrate and measure the day it arrives.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is in every kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCombination ion-selective electrode (sensing element and reference in one body)\u003c\/li\u003e\n\u003cli\u003e100 ppm and 1000 ppm standard solutions, 50 mL each\u003c\/li\u003e\n\u003cli\u003eElectrode filling solution, 50 mL\u003c\/li\u003e\n\u003cli\u003eIonic strength adjustor (ISA), 50 mL\u003c\/li\u003e\n\u003cli\u003eSyringe and droppers\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ammonia, calcium, chloride and potassium kits also include spare sensing parts: 3 membrane caps with the ammonia electrode, and 2 electrode tips each with the calcium, chloride and potassium electrodes.\u003c\/p\u003e\n\n\u003ch3\u003eAvailable ions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5002S-10C\u003c\/strong\u003e (3200698386) — ammonia (NH\u003csub\u003e3\u003c\/sub\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6583S-10C\u003c\/strong\u003e (3200697410) — calcium (Ca\u003csup\u003e2+\u003c\/sup\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6560S-10C\u003c\/strong\u003e (3200697407) — chloride (Cl\u003csup\u003e-\u003c\/sup\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6561S-10C\u003c\/strong\u003e (3200693774) — fluoride (F\u003csup\u003e-\u003c\/sup\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6581S-10C\u003c\/strong\u003e (3200697408) — nitrate (NO\u003csub\u003e3\u003c\/sub\u003e\u003csup\u003e-\u003c\/sup\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6582S-10C\u003c\/strong\u003e (3200697409) — potassium (K\u003csup\u003e+\u003c\/sup\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy the ionic strength adjustor matters\u003c\/h3\u003e\n\u003cp\u003eAn ion-selective electrode responds to ion \u003cem\u003eactivity\u003c\/em\u003e, not concentration, and activity depends on the total ionic strength of the solution. Adding the same volume of ISA to both your standards and your samples forces them to a common, high ionic strength, so activity tracks concentration and the calibration transfers correctly to the sample. Skipping the ISA is the most common reason ISE results come back wrong. For fluoride the ISA also complexes interfering aluminum and iron and buffers the pH.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAmmonia in wastewater influent and effluent, and nitrification monitoring\u003c\/li\u003e\n\u003cli\u003eNitrate in drinking water, groundwater, surface water and soil extracts\u003c\/li\u003e\n\u003cli\u003eFluoride in drinking water fluoridation control and industrial effluent\u003c\/li\u003e\n\u003cli\u003eChloride in water, brines, food products and concrete or aggregate extracts\u003c\/li\u003e\n\u003cli\u003eCalcium in water hardness, agriculture and food and beverage analysis\u003c\/li\u003e\n\u003cli\u003ePotassium in soil and plant tissue extracts, fertilizers and nutrient solutions\u003c\/li\u003e\n\u003cli\u003eTeaching laboratories demonstrating potentiometric ion measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.horiba.com\/ind\/water-quality\/download\/\"\u003eHORIBA water quality document library — electrode brochures and manuals\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConsumables\u003c\/h3\u003e\n\u003cp\u003eReplacement ion cartridges, ammonia membrane caps, standard solutions and ionic strength adjustors are stocked separately — see the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba-parts-accessories\"\u003eHoriba Parts \u0026amp; Accessories\u003c\/a\u003e collection. Treat the sensing cartridge or membrane as a consumable and budget for periodic replacement.\u003c\/p\u003e\n\n\u003cp\u003eBrowse all \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba\"\u003eHORIBA instruments\u003c\/a\u003e.\u003c\/p\u003e","brand":"Horiba","offers":[{"title":"Ammonia - 5002S-10C - 3200698386","offer_id":48226414526654,"sku":"3200698386","price":1037.0,"currency_code":"USD","in_stock":true},{"title":"Calcium - 6583S-10C - 3200697410","offer_id":48226414559422,"sku":"3200697410","price":1037.0,"currency_code":"USD","in_stock":true},{"title":"Chloride - 6560S-10C - 3200697407","offer_id":48226414592190,"sku":"3200697407","price":1037.0,"currency_code":"USD","in_stock":true},{"title":"Fluoride - 6561S-10C - 3200693774","offer_id":48226414624958,"sku":"3200693774","price":1037.0,"currency_code":"USD","in_stock":true},{"title":"Nitrate - 6581S-10C - 3200697408","offer_id":48226414657726,"sku":"3200697408","price":1037.0,"currency_code":"USD","in_stock":true},{"title":"Potassium - 6582S-10C - 3200697409","offer_id":48226414690494,"sku":"3200697409","price":1037.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/csm_Ion_Sensor_Cartridge_396ba3b411_e1ba743e-97b0-4df1-b8fb-f2d25d7057f7.png?v=1785337384","url":"https:\/\/envirotechonline.com\/products\/horiba-ion-selective-electrode-kit","provider":"EnviroTech Services","version":"1.0","type":"link"}