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EZ1002 / EZ1003 Ammonium Colorimetric Analyzer
SKU: EZ1002.99001C02, EZ1003.99001C02
Manufacturer: Hach
Availability: Order only
The versatile analyzer base unit provides flawless real-time duplication of a standard / laboratory method for determining concentrations of substances with unmatched accuracy.
The EZ1000 series analyzers use the colorimetric method to measure ammonium concentration:
- EZ1002 Berthelot method, standard measuring range: 0.025 - 1 mg/L NH4-N
- EZ1003 Nessler method, standard measuring range: 0.25 - 2 mg/L NH4-N
Applications: waste water, drinking water, surface water, power generation.
Description Specifications Recommended products
Description
Description
The sampling line transfers the sample to the analyzer. The analyzer uses pumps, valves, and syringes to move the sample and reagents into a measuring cell on the analytical panel. When the measurement cycle is complete, the analyzer removes the sample through the drain line. The analysis results are displayed on the data processing panel display. The data processing panel controls and configures the analyzer. It also stores analyzer data (such as trends, alarms, analysis results, and data log files).
- The standard measuring range can be narrowed with a different calibration range or extended with internal dilution options.
- Analog and digital output options
- Multi-threaded analysis - up to 8 threads.
Many additional options are available. Please contact us for more details.
Optional measuring ranges for EZ1002
- 0.005 - 0.1 mg/L NH4-N
- 0.01 - 0.25 mg/L NH4-N
- 0.01 - 0.5 mg/L NH4-N
- 0.2 - 4 mg/L NH4-N (with internal dilution)
- 0.4 - 8 mg/L NH4-N (with internal dilution)
- 2.5 - 100 mg/L NH4-N (with internal dilution)
Optional measuring ranges for EZ1003
- 1 - 8 mg/L NH4-N (with internal dilution)
- 2 - 16 mg/L NH4-N (with internal dilution)
- 2.5 - 200 mg/L NH4-N (with internal dilution)
Description of methods for the determination of ammonium
EZ1002: determination of ammonium concentration in water is based on the reaction of ammonium ions with hypochlorite and thymol component in a highly alkaline medium (pH > 10) with the formation of a green complex. Absorbance is measured at 630 nm. Sodium nitroprusside is added as a catalyst to speed up the reaction. Sodium tartrate is added to prevent the precipitation of the metal hydroxide.
EZ1003: determination of ammonium concentration in water is based on the reaction of ammonia with potassium mercury iodide from Nessler's reagent in an alkaline medium to form a yellow-brown complex. Absorbance is measured at 450 nm.
The analysis vessel is cleaned and filled with fresh sample. After sampling, the initial absorbance is measured at 630/450 nm. The reagents are then added, after stirring to obtain full color development, the final absorbance value is determined. The obtained values of optical density are used to calculate the concentration of ammonium in accordance with Lambert Beer's law.
EZ1002 / EZ1003 Ammonium Analyzer Specifications
- Measurement method EZ1002 based on APHA 3500-NH3 standard method (Berthelot); EZ1003 comply with EPA Standard Method 350.1 (Nessler);
- Detection limit ≤ 5 μg/L / ≤ 250 μg/L;
- Interference for EZ1002: Amino acids, hydrazine and urea. High turbidity and color of the sample. Fats, oils, proteins, surfactants and tar. For EZ1003: acetone, alcohols, aldehydes, aliphatic and aromatic amines, chlorine, glycine, organic chloramines and sulfides. High turbidity and color of the sample. Fats, oils, proteins, surfactants and tar;
- Cycle time 25 min (dilution + 5 min) / 6 min (dilution + 5 min);
- Automatic cleaning yes;
- Automatic calibration 2 points; freely programmable frequency;
- Ambient temperature 10 - 30 °C ± 4 °C at 5 - 95% relative humidity (no condensation);
- Store reagent requirements 10 to 30 °C
- Flow rate 100 - 300 mL/min;
- Sample temperature 10 - 30 °C
- Sample quality maximum particle size 100 μm, < 0.1 g/L; turbidity < 50 NTU;
- Dimensions (H x W x D) 690 mm x 465 mm x 330 mm
- Weight 25 kg
- Manufacturer: AppliTek NV / SA
- Distributor: Hach Lange GmbH
Specifications
| Application area | Wastewater, Drinking water, Treatment facilities, Equipment for water utilities, Process control |
| Type | Industrial |
| Industry | Power generation, Food and Beverage, Municipal |
| Parameters | Ammonium |
| Measurement Range | 0.025 - 1 mg/L NH4-N |
| Measurement method | Colorimetric |
| Measurement Range (2) | 0.25 - 2 mg/L NH4-N |
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