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Hanna

HI4012-00 ISA for Lead/Sulfate ISE, 500 ml Bottle

Product code: MX-11920

HANNA instruments offers a full range of solutions for ISE electrodes . ISE standards are required for the direct ISE and incremental measuring method . They are available for a variety of ISE with certificate of analysis parameters .

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Product description

HI4012-00 is an ionic strength adjuster (ISA) solution for use with lead/sulfate ion selective electrodes (ISEs). Hanna ISA solutions are formulated to fix the ionic strength of a sample and standards so that they are both constant. Without addition of ISA, an ion selective electrode would measure ion activity; addition of ISA stabilizes the ionic strength and permits measurements as ion concentration. With some ISEs, the ISA solution is also used to adjust the solution's pH or to remove any potential interferences from competing ions that are present. Air tight bottle with tamper-proof seal Ensures quality and freshness of solution Each bottle marked with lot number and expiration date Hanna ISE standard solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle Importance of ISA* Fixes a solution's ion activity to be constant so concentration can be determined Adjusts the pH of a solution required for some ISEs Complexes interfering ions in a sample to allow measurement of free ions of interest * If an ISA solution is used with a sample, then it must be used with the calibration standards in equal proportions.