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Nitrate Half-Cell Electrode HI4013

Producer: HANNA Instruments

SKU: HANNA-HI4013 Category: Hanna experimental measuring equipment

– Is an ion selective electrode (ISE) half-cell liquid membrane

– Required for use with HI5315 reference electrode

– Used to determine nitrate ions in magnetic solutions 0.62 to 6,200 mg/L NO₃^–

– Liquid membrane sensor

– Used with Meters with ISE measurement function

The HI4013 nitrate ion selective electrode is a half-cell sensor housed in an epoxy body. The internal elements are isolated from the sample by an organic polymer membrane. This liquid membrane sensor requires a separate reference electrode to complete the measurement system.

Hanna solid state half-cell electrodes are designed for use with the HI5315 conical junction reference electrode. The conical reference forms a liquid junction with the sample solution at the tip of the conical junction, providing a very stable reference current and a consistent flow rate of electrolyte into the solution.

For the HI4013 to measure nitrate accurately, it is important that the ionic strength of the standards and samples is adjusted to a high and constant value with the nitrate ionic strength adjuster (ISA) solution. The ISA ensures that the activity coefficient is constant so that the concentration of free nitrate ions can be measured. Measuring all solutions with a constant ionic strength reduces the margin of error between measurements. The HI4013 liquid nitrate membrane ISE can measure from 10µM (0.62 mg/L) to 0.1M (6,200 mg/L).

Conversion table to NO₃^–

	Multiply by
mol/L (M) to ppm (mg/L)	62000
ppm (mg/L) to M (mol/L)	1.61 x 10^-5

SALIENT FEATURES

Interchangeable sensor module – The liquid membrane half-cell ISE is an electrode that detects free ions in a solution. This type of ISE is designed to easily incorporate replaceable sensor modules.

Durable epoxy body – Half-cell fluoride probe body made of durable epoxy resin.

BNC connection – The HI4013 has a universal BNC connector for easy connection to any meter with a BNC input.

Working principle: Liquid membrane ion selective electrodes generate voltage due to ion exchange occurring between the solution and a polymer membrane containing organic ion exchange resin. When the ionic strength of the solution is fixed by adding ISA, the voltage is proportional to the concentration of free ions in the solution.

ISE ELECTRODE AND NECESSARY SOLUTIONS AND ACCESSORIES

https://hannavietnam.com/blog-detail/dien-cuc-ise-va-cac-dung-dich-phu-kien-can-thiet-122

SPECIFICATIONS

Type	half-cell; liquid circuit
The scale Nitrate (NO₃^–)	0.1M to 1×10^-5M 6200 to 0.62 mg/L (ppm)
Optimal pH scale	pH 2 to 12
Temperature scale	0 to 40°C
Slope	-56 mV
Diameter	12mm
Body length	120 mm
Body material	epoxy, PVC
Cable	Coaxial; 1 m (3.3')
Connect	BNC
Guarantee	06 months