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Overcoming ammonium monitoring challenges: How gas-phase ammonium analyzer delivers zero interference and low maintenance

  • 15 hours ago
  • 2 min read

Ammonium (NH₄⁺) measurement is a critical parameter in wastewater treatment, process water monitoring, and environmental protection. However, traditional optical or electrochemical sensors often face a major hurdle: sample matrix interference. Turbidity, color shifts, pH fluctuations, and salinity can quickly compromise data accuracy and demand continuous manual cleaning.


At Hemera, we take different approach. Our gas-phase ammonium analyzer isolates the target compound before measurement, delivering stable, repeatable data with drastically reduced maintenance.


Hemera gas-phase ammonium analyzer installed at client facility
Hemera gas-phase ammonium analyzer installed at client facility

Key features: Ammonium (NH₄⁺) analyzer

Zero interferences

High accuracy & repeatability

Low detection limit

Fast response time

Minimized maintenance

Low reagent consumption

With turbidity, color, pH, salinity, temperature or BTEX

From 1 to 2 % of full scale in process condition

< 0.1 mg/L NH4+-N

< 1 minute

Only every 6 months

< 1 mL / measurement


The gas-phase advantages: Eliminating matrix interferences

In conventional liquid-phase systems, light or electrodes interact directly with the sample matrix. Any particle, bubble, or color variation distorts the reading.


By transferring the sample’s ammonium into the gas phase prior to detection, our technology completely bypasses matrix complexity.


  • Zero optical obstruction: Unaffected by sample turbidity, suspended solids, or intense coloration.

  • Chemical stability: No impacted by variations in sample pH, temperature, or salinity.

  • Consistent baseline: Prevents sensor fouling caused by direct liquid-contact scaling or bio-fouling.


Proven performance: High accuracy & repeatability

In consecutive test runs, our gas-phase technology demonstrates:


  • High precision across low and high concentration ranges.

  • Outstanding repeatability with minimal relative standard deviation (RSD).

  • Zero baseline drift, eliminating the need for frequent recalibrations.


The accuracy / repeatability test performed on our ammonium analyzer:


Accuracy and repeatability test graph for Hemera NH4+ analyzer

Parameter

Result

Measuring range

0 - 25 mg/L

Standard solution

NH₄⁺ @ 10 mg/L

Consecutive measurements

15

Test conditions

In laboratory

Measured average value

10.02 mg/L

Standard deviation

0.07

Repeatability

± 0.28 % FS

Accuracy

± 0.08 % FS


Screenshot of the screen of our NH4+ analyzer during the accuracy and repeatability test
L800 - NH₄⁺ ANALYZER SCREENSHOT

Designed for low total cost of ownership (TCO)

Equipment maintenance and reagent consumption represent a significant portion of long-term operational costs. We engineered our ammonium analyzer to minimize both:


  • Very low reagent consumption: Reduces chemical handling, storage constraints, and recurring operational expenditure.

  • Low maintenance: Integrated self-cleaning functions prevent sample line clogging and extend continuous operating periods.

  • Maximum uptime: Fewer manual interventions mean your engineering and maintenance teams can focus on higher-value tasks.


Key applications

Our gas-phase ammonium analyzer is built to perform in demanding environments:



Wastewater Treatment Plants

Aeration basin control and effluent compliance monitoring.


Process Water Systems

Industrial water treatment and recovery process control.


Environmental Monitoring

River, surface water, and discharge water quality tracking.


Ready to upgrade your ammonium monitoring?

Stop letting sample matrix complexity dictate your maintenance schedule and compromise your data. Discover how Hemera’s gas-phase analysis can simplify your operations.


Need detailed specifications for your installation?


Contact our engineering team to request the full technical datasheet or discuss your specific process requirements.



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Why choose us?

Tailor-made solutions — Every analyzer is customized to fit your specific needs

Reliability & robustness — Built to perform in the most demanding environments

Easy integration — Seamlessly connects to your existing systems and processes

Customer support — Long-term partnership with dedicated assistance

Multi-sector expertise — Proven experience across industrial and environmental applications

4E chemin de Malacher  

38240 Meylan, France

sales@hemera.fr

Tel: +33 6 77 87 63 00

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