Hexavalent Chromium Water Tester

The hexavalent chromium water quality analyzer detects hexavalent chromium using the diphenylcarbazide spectrophotometric method. Under acidic conditions, hexavalent chromium reacts with the reagent to form a purple-red compound, and the concentration is determined through colorimetric measurement. It is used to monitor the effectiveness of wastewater treatment in industries such as electroplating and leather tanning, ensuring that discharge meets regulatory standards.
Selection
When selecting, consider a detection range covering 0.01–1 mg/L, using national standard detection methods, and equipped with automatic calibration functions. Prioritize models with strong anti-interference capabilities to adapt to different water quality conditions. The instrument should be easy to operate, have a long maintenance cycle, and stable supply of accessories.

Terms

Standards

Instruments

Measurement range 0~ 5mg/L, can be tested 100 times, supporting the use of special analytical instruments, the operation process is simple and fast, suitable for the determination of hexavalent chromium content in water quality.

$ 164.00

The imported cold light source does not need to be preheated for 100,000 hours, the detection limit is 0.01mg/L Sensitivity is high, the standard and continuous Measurement mode are supported, and the digestion Colorimetric integrated tube is safe and fast to operate. It can store 4000 sets of data and support a variety of transmission methods.

$ 816.00

Using microcomputer processing technology and high Reliability IC, with data nonlinear processing and smoothing functions, Measurement range 0~ 0.5mg/L, resolution 0.001mg/L, Indication Error +/- 5% FS, to ensure long-term stable operation.

$ 356.00

Imported high-luminance Illuminant and narrowband filter system, Optical inspection stability is less than 0.002A/20min, measurement range 0.01~ 1mg/L, support long-term data storage and user self-calibration Linear dispersion.

$ 499.00

Measurement range 0-300μg/L, accuracy +/- 10μg/L +/- 4%, LED Illuminant and reference Detector ensure measurement Stability, IP67 waterproof standard.

$ 632.00

The pre-measurement design simplifies the operation process. Colorimetric measurement is realized based on the diphenylcarbohydrazide method. The detection range covers 0 to 1000 μg/L, and 100 tests can be completed in a single Reagent.

$ 183.00

Measurement range 0-300ppb, accuracy +/- 2ppb +/- 4%, reliable detection based on diphenylcarbonyl dihydrazide method.

$ 215.00

Using 525nm LED Illuminant and diphenylcarbonyl dihydrazide method, Measurement range 0-999ppb, accuracy +/- 5ppb, with fast detection and high Sensitivity characteristics, ten minutes automatic shutdown function to improve the convenience of use.

$ 215.00

Colorimetric integrated tube design, no liquid transfer, measurement error ≤ +/- 5%, Repeatability ≤ +/- 5%, support more than 10 measurements to take the average, built-in 30,000 data storage and thermal printer.

$ 3268.00

Using imported cold light source, Optical inspection Stability up to +/- 0.001A/20min, life 100,000 hours; Colorimetric digestion integrated tube design, support a variety of heavy metals detection, minimum detection value of 0.001mg/L.

$ 3268.00

Using digestion Colorimetric integrated tube technology, the detection limit reaches 0.01mg/L, supports 16 water sample batches, and has 30,000 data storage and abnormal prompt functions to ensure accurate and stable detection.

$ 1622.00

Colorimetric integrated tube with digestion is used to realize detection integration, the detection limit is 0.01mg/L, Optical inspection Stability ≤ +/- 0.001A/20min, supports multiple power supply modes and wireless data transmission, and the portable design is suitable for on-site rapid detection.

$ 816.00

Adopting imported cold light source technology, the lifespan is up to 100,000 hours; the detection sensitivity is as high as 0.001mg/L; the Colorimetric integrated tube design is supported, and the operation is safe and convenient; the built-in rechargeable battery lasts for a long time.

$ 1574.00

Equipped with 80L/H water pRoduction capacity and 18MΩ · cm resistivity effluent, 7-inch color touchscreen displays water quality and temperature in real time, supports automatic circulation and consumable reminders, is compatible with a variety of water storage methods, and has built-in disinfection function.

$ 4932.00

The double outlet design can pRoduce UP water and RO water at the same time, the water pRoduction capacity is 10L/H, the resistivity of UP water is > 10MΩ · cm@25 ℃, and the fully enclosed pipeline design and automatic timing flushing function are adopted to ensure the stability of water quality.

$ 767.00

Articles

Operating Specifications for the Determination of Hexavalent Chromium Content in Wastewater Using Colorimetric Titration Apparatus
This article introduces the standard operating procedure for determining hexavalent chromium content in wastewater using a colorimetric titrator. The method is based on the reaction between hexavalent chromium and diphenylcarbazide under acidic conditions to form a purplish-red complex, with the titration endpoint determined by monitoring changes in absorbance at a wavelength of 540 nanometers.
Wavelength selection for the determination of sulfate content in water quality using photometric titrator
This article discusses how to select the wavelength when using a photometric titrator to determine the sulfate content in water. The core issue lies in the fact that wavelength selection directly affects the accuracy and anti-interference capability of the detection.
Conductivity meter measures the conductivity of water extract from pulp.
This article introduces the method of measuring the electrical conductivity of pulp water extracts using a conductivity meter. Electrical conductivity reflects the content of soluble ions in pulp, which is used to evaluate washing effectiveness and the impact of water quality.
Practical Application of Spectrophotometer in COD, Ammonia Nitrogen, and Total Phosphorus Determination
This article introduces the practical applications of spectrophotometers in measuring key water quality indicators—Chemical Oxygen Demand (COD), Ammonia Nitrogen, and Total Phosphorus.
How to Choose a Suitable Multi-Parameter Water Quality Analyzer Based on Detection Indicators
When selecting a multi-parameter water quality analyzer, the first step is to clarify the parameters that need to be measured, such as physical, chemical, or biological indicators, because different parameters require different detection principles, measurement ranges, and accuracy levels for the instrument.
How to choose between laboratory benchtop and portable water quality testing instruments
When selecting a water quality analyzer, the primary consideration is whether the testing task is conducted in a laboratory or on-site. Benchtop analyzers are suitable for laboratories, offering high precision, excellent stability, and the ability to handle large sample volumes. Portable analyzers are designed for fieldwork or emergencies, emphasizing rapid results, ease of operation, and strong environmental adaptability.
How can multi-parameter water quality analyzers avoid cross-contamination and improve data accuracy?
This article mainly discusses how to avoid cross-contamination in multi-parameter water quality testing to ensure data accuracy. Cross-contamination refers to the residue from a previous sample affecting the results of the next sample, which may lead to data deviation.
Which is more convenient for water hardness testing: the electrode method or the titration method?
Both electrode method and titration are used to measure water hardness. The choice depends on specific needs: opt for the electrode method for speed, and choose titration for accuracy.
Application of UV-Visible Spectrophotometer in the Detection of Heavy Metals in Water
This article introduces the application of ultraviolet-visible spectrophotometry in the detection of heavy metals in water.