WNCG-2A Cold Atomic Absorption Mercury Analyzer

Product Introduction

The WNCG-2A Cold Atomic Absorption Mercury Analyzer is a specialized analytical instrument designed for rapid and accurate determination of mercury content in environmental and industrial samples. Based on cold atomic absorption spectrometry, it measures elemental mercury vapor through its characteristic absorption at 253.7 nm without requiring high-temperature atomization.

The instrument integrates an imported detection sensor, microcontroller-based control technology, automatic working-curve calibration, and data storage functions. Its large color touchscreen directly displays mercury concentration, temperature, and humidity, eliminating the need for manual concentration calculations.

With a detection limit of 0.02 ng/mL, automatic storage of up to 256 measurement records, and USB connectivity for data transfer, the WNCG-2A provides a convenient solution for mercury analysis in environmental monitoring, water quality testing, food safety, chemical industries, and public health laboratories.

Performance Features

• Cold Atomic Absorption Technology: Uses the characteristic absorption of elemental mercury vapor at 253.7 nm for mercury concentration determination.

•  Imported Detection Sensor: Equipped with an imported sensor for reliable mercury detection.

•  Direct Concentration Display: Automatically calculates and displays mercury concentration in ng/mL without manual conversion.

• Automatic Calibration: Built-in mercury standard working curve with user calibration and automatic curve storage.

•   Color Touchscreen: Large-screen touchscreen provides convenient operation and clear presentation of measurement results.

• Environmental Parameter Monitoring: Simultaneously displays mercury concentration, ambient temperature, and humidity.

•   Data Storage: Automatically stores up to 256 groups of measurement records.

•  Data Query Function: Allows users to retrieve stored results by date, time, and measurement value.

•  USB Data Transfer: Supports transferring measurement data to a computer for saving, analysis, and printing.

• Automatic Working-Curve Recovery: Retains the last calibrated working curve for direct use after restarting the instrument.

Working Principle

The WNCG-2A operates based on cold atomic absorption spectrometry (Cold AAS). Elemental mercury can volatilize into mercury vapor at room temperature without conventional high-temperature atomization.

When mercury vapor passes through the optical measurement system, it absorbs ultraviolet light at its characteristic wavelength of 253.7 nm. The instrument measures the absorption intensity and determines mercury concentration according to the Beer-Lambert law, which establishes a proportional relationship between absorbance and mercury concentration within the linear measurement range.

The built-in microcontroller processes the measurement signal, automatically calculates the mercury concentration, and displays the result on the touchscreen. Calibration curves can be adjusted and stored according to user requirements, while measurement records are automatically saved for subsequent retrieval and USB data transfer.

Technical Parameters

Application Scenarios

The WNCG-2A Cold Atomic Absorption Mercury Analyzer is widely applicable to mercury contamination monitoring and trace mercury analysis across multiple industries.

• Environmental Monitoring: Determination of mercury contamination in environmental samples, including water, air, and soil.

•  Water Quality Testing: Measurement of mercury concentrations in drinking water, surface water, wastewater, and other water samples.

•   Food Safety Testing: Analysis of mercury residues and contamination in food samples.

• Public Health and Epidemic Prevention: Mercury monitoring for environmental health assessment and contamination investigations.

• Chemical Industry: Determination of mercury content in chemical raw materials and industrial products.

•   Cosmetics Testing: Detection of mercury contamination in cosmetic products and related raw materials.

•  Laboratory Research: Trace mercury analysis and environmental pollution research in scientific institutions and testing laboratories.

WNCG-2A vs. Conventional Mercury Detection Instruments

Frequently Asked Questions (FAQ)

1. What is the WNCG-2A Cold Atomic Absorption Mercury Analyzer used for?

The WNCG-2A is designed to measure mercury content in water, air, soil, food, cosmetics, chemical raw materials, and other environmental or industrial samples.

2. What measurement principle does the WNCG-2A use?

It uses cold atomic absorption spectrometry. Elemental mercury vapor absorbs ultraviolet light at 253.7 nm, and the instrument determines mercury concentration based on the measured absorbance.

3. What is the measurement range of the WNCG-2A?

The standard measurement range is 0–10 ng/mL. Samples with concentrations exceeding 10 ng/mL should be diluted before measurement.

4. What is the detection limit of the WNCG-2A?

The instrument has a detection limit of 0.02 ng/mL, supporting trace-level mercury analysis.

5. Does the WNCG-2A automatically calculate mercury concentration?

Yes. Its built-in microcontroller automatically processes the measurement signal and directly displays mercury concentration in ng/mL, eliminating manual conversion.

6. Can users calibrate the working curve?

Yes. The instrument includes a built-in standard working curve and allows users to perform calibration according to their requirements. The calibrated curve can be automatically saved for subsequent measurements.

7. How many measurement records can the WNCG-2A store?

The instrument can automatically store up to 256 groups of measurement data. Users can retrieve records according to date, time, and measurement value.

8. Can measurement data be exported to a computer?

Yes. The USB interface supports transferring measurement data to a computer for storage, further processing, and printing.

9. Which industries can benefit from the WNCG-2A mercury analyzer?

It is suitable for environmental monitoring, water quality analysis, food safety testing, public health laboratories, cosmetics testing, chemical manufacturing, and scientific research.