{"product_id":"silver-sulfide-combination-ion-selective-electrode-ise-hi4115","title":"Silver\/Sulfide Combination Ion-Selective Electrode (ISE) - HI4115","description":"\u003cp\u003eHanna's solid state combination ISEs are designed with a cone style junction. The skirted cone geometry of the sensor forms the liquid junction with the test solution at the tip of the junction cone, producing a highly stable reference potential and consistent flow rates of electrolyte into the solution. A simple press of the top portion of the ISE makes it easy to empty the electrolyte fill solution and replace when necessary.\u003c\/p\u003e\n\u003cp\u003eMeasuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI4115 silver\/sulfide solid state ISE can measure silver from 1µM (0.11 mg\/L) to 1M (107, 900 mg\/L) and sulfide from 0.1µM (0.003 mg\/L) to 1M (32, 100 mg\/L).\u003c\/p\u003e\n\u003ch5\u003eSilver(Ag\u003cstrong\u003e\u003csup\u003e+\u003c\/sup\u003e\u003c\/strong\u003e\u003cstrong\u003e)\u003c\/strong\u003e\n\u003c\/h5\u003e\n\u003cp\u003eFor the HI4015 to measure silver accurately, it is important that the ionic strength of the standards and sample be adjusted to a high and constant value with the halide ionic strength adjuster (ISA) solution. The ISA ensures that the activity coefficient is constant so the concentration of free silver ions can be measured.\u003c\/p\u003e\n\u003cp\u003eConversion Table for Ag\u003csup\u003e+\u003c\/sup\u003e\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 0 0 32px;\"\u003e\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol width=\"210\"\u003e \u003ccol width=\"*\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eMultiply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emoles\/L (M) to ppm (mg\/L)\u003c\/td\u003e\n\u003ctd\u003e1.0787 x 10\u003csup\u003e5\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm (mg\/L) to M (moles\/L)\u003c\/td\u003e\n\u003ctd\u003e9.27 x 10\u003csup\u003e-6\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch5\u003eSulfide(S\u003csup\u003e2-\u003c\/sup\u003e)\u003c\/h5\u003e\n\u003cp\u003eFor accurate sulfide measurement, it is important that sulfur is released from hydrogen and that sulfide oxidation is prevented with the sulfide antioxidant buffer solution (SAOB). The SAOB ensures that the solution pH is above pH 12, reducing the effect of interfering ions and releasing sulfur from hydrogen ions. SAOB also acts to stabilize the activity coefficient so the concentration of free sulfide ions can be measured.\u003c\/p\u003e\n\u003ch4\u003eConversion Table for S\u003csup\u003e2-\u003c\/sup\u003e\n\u003c\/h4\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 0 0 32px;\"\u003e\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol width=\"210\"\u003e \u003ccol width=\"*\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eMultiply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emoles\/L (M) to ppm (mg\/L)\u003c\/td\u003e\n\u003ctd\u003e3.207 x 10\u003csup\u003e4\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eppm (mg\/L) to M (moles\/L)\u003c\/td\u003e\n\u003ctd\u003e3.12 x 10\u003csup\u003e-5\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003eFeatures at-a-glance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFixed Sensing Modules\u003c\/strong\u003e - Combination solid state ISEs are electrodes that detect free ions in a solution. The highly insoluble, compressed sensing pellet is attached to the electrode by a fixed sensing module for ease of use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable PEI Body\u003c\/strong\u003e - The probe body is composed of durable polyetherimide (PEI) plastic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBNC Connection\u003c\/strong\u003e - The HI4115 has a universal BNC connector for easy connection to any benchtop meter with a female BNC probe input.\u003c\/p\u003e\n\u003ch2\u003eTheory of Operation\u003c\/h2\u003e\n\u003cp\u003eA solid state sensor electrode develops a voltage due to the ion exchange that occurs between the solution and the inorganic membrane. An equilibrium occurs due to the highly limited solubility of the membrane material in the sample. When the ionic strength of the solution is fixed by the addition of ISA, the voltage is proportional to the concentration of free ions in solution.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI4115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003eSilver\/Sulfide Combination Ion-Selective Electrode (ISE) - HI4115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003ecombination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003esilver (Ag\u003csup\u003e+\u003c\/sup\u003e) 1M to 1 10\u003csup\u003e-6\u003c\/sup\u003eM, 107,900 to 0.11 mg\/L (ppm)\nsulfide (S\u003csup\u003e2-\u003c\/sup\u003e) 1M to 1 10\u003csup\u003e-7\u003c\/sup\u003eM, 32,100 to 0.003 mg\/L (ppm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0 to 80 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003ePEI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimum pH Range\u003c\/td\u003e\n\u003ctd\u003epH 2 to 8 (silver); pH 12 to 14 (sulfide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Length\/Overall Length\u003c\/td\u003e\n\u003ctd\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable\u003c\/td\u003e\n\u003ctd\u003ecoaxial; 1 m (3.3’)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eBNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003e+56 mV (silver); -28 mV (sulfide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/manuals.hannainst.com\/HI4115\" target=\"_blank\" rel=\"noopener\"\u003eSilver\/Sulfide Combination Ion-Selective Electrode (ISE) - HI4115\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871278170481,"sku":"HI4115","price":128992.5,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi4115_2016.jpg?v=1792646034","url":"https:\/\/hannainst.in\/products\/silver-sulfide-combination-ion-selective-electrode-ise-hi4115","provider":"hanna","version":"1.0","type":"link"}