Vernier™ Go Direct™ Ammonium Ion-Selective Electrode

Description

• Range (concentration): 1 to 18,000 mg/L (or ppm) pH range: 2 to 7 (no pH compensation) Interfering ions: K + , Li + , Na + , Cs + , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ Electrode slope: 55 ±3 mV/decade at 25°C Electrode resistance: 0.1 to 5 MΩ Minimum sample size: must be submerged 2.8 cm (1.1 in.) Use the Go Direct Ammonium Ion-Selective Electrode to wirelessly measure levels of ammonium ions introduced from fertilizers
• It can also indicate aqueous ammonia levels, if sample solutions are acidified to convert NH 3 to NH 4 +
• The versatile BNC connector allows students to easily replace the electrode when it expires or becomes damaged
• You need only replace the electrode and not the entire sensor—lowering your overall equipment costs
• The Go Direct Ammonium Ion-Selective Electrode has a combination-style, non-refillable, gel-filled electrode
• Like all other PVC ISE membranes, the membrane on the ISE has a limited life expectancy
• However, the replaceable module of ISE allows you to simply discard the used membrane module and replace it with a new one.