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Cold Vapor Mercury Analyzer

PRODUCT MODEL：HM-CGSQ

【introduction】Liquid and gaseous samples with two selectable measurement modes.

+86 17853698681

Product details

Cold vapor mercury analyzer with integrated touchscreen

Mercury analyzer optical gas-path and operating features

Mercury testing application fields

CGS CGSQ and CGQ sample-type and specification comparison

Cold vapor absorption and gold-trap detection principles

Mercury analyzer product and analytical method references

Mercury analyzer optical system and sampling features

Automatic zeroing and touchscreen measurement interface

Enclosed gas path and thermal desorption arrangement

Mercury analyzer warm-up sample analysis and printing

Touchscreen controls and cloud-management functions

Mercury analyzer flow adjustment and physical specifications

Mercury analyzer liquid gas and general specifications

Hengmei company team and production premises

Hengmei laboratory facilities and instrument applications

Product Overview

HM-CGSQ is a benchtop cold vapor atomic absorption mercury analyzer for liquid and gaseous samples. Mercury vapor is carried into an absorption cell and quantified from its absorption of 253.7 nm ultraviolet light against a calibration curve. The measurement mode is selected according to the laboratory sample and preparation workflow.

For liquid measurement, samples are appropriately digested and mercury is chemically reduced to elemental vapor before transport into the absorption cell.

For gas measurement, a gold-film trap collects mercury as an amalgam. Thermal desorption at 800 °C releases mercury vapor into the absorption cell.

Key Features

Android 10 operating system with a 7-inch color touchscreen.
Automatic zeroing, one-key measurement, live curves and instrument status prompts.
Shielded low-pressure mercury lamp optical system and a corrosion-resistant enclosed gas path with drying.
30-minute warm-up and an integrated thermal printer for measurement reports.
Wi-Fi software updates, wireless data upload and client-side data management.
Selectable liquid and gas modes in one instrument.
Gold-film trap capacity greater than 1000 ng of mercury.

Applications

Total mercury determination in prepared water samples and digests from food, soil, sediment, minerals and industrial materials.
Gaseous mercury analysis for ambient air, workplace air, industrial emissions and atmospheric mercury research.

Technical Specifications

Parameter	Specification
Sample type	liquid and gaseous samples
Detection wavelength	253.7 nm
Liquid measurement range	0–15 ng/mL; dilute higher-concentration samples
Liquid detection limit	≤0.01 ng/mL
Liquid repeatability (RSD)	<3%
Liquid linearity error	<5%
Liquid linear correlation coefficient	>0.999
Liquid analysis time	30–100 s
Recommended liquid sample volume	10 mL
Liquid-mode rated power	50 W
Gas measurement range	0–50 ng, collected mercury mass
Gas detection limit	≤1 ng
Gas linear correlation coefficient	>0.995
Maximum trap capacity	>1000 ng
Gas analysis time	100–200 s
Thermal desorption temperature	800 °C
Thermal-desorption rated power	1000 W during heating
Warm-up time	30 min
Operating temperature	10–30 °C
Operating humidity	0–80% RH
Power supply	85–264 V AC, 47–63 Hz
Dimensions	345 × 365 × 160 mm
Net weight	10 kg

Related Models

Parameter	Specification
HM-CGS	Liquid samples; reduction and cold vapor absorption.
HM-CGQ	Gaseous mercury; gold-film trapping and thermal desorption.
HM-CGSQ	Liquid and gaseous samples with two selectable measurement modes.

Operation and Support

Complete warm-up and calibration before measurement. Prepare liquid samples using the appropriate digestion and reduction procedure. The liquid measurement time runs from addition of the reducing agent to the displayed result. Collect mercury on the gold-film trap, then insert it into the thermal-desorption port for measurement. Review the live curve and result, then save or print the report.