MA-3 Solo

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Affordable, high-performance & compact benchtop direct mercury analyzer


Affordable robust design with a wide measurement range

Engineered for affordability, with easy-to-use manual boat loading and a sturdy “quick twist” load lock, the rugged MA-3 Solo is simple to operate and delivers a wide measurement range of 0 to 10,000 ng with quick analysis times ranging from 5 to 12 minutes.

Inexpensive operation – no gases or consumables required

MA-3 Solo was designed to be as simple to use as possible. Unlike other systems that require purified oxygen gas, purified air is used as the combustion and carrier gas. This design concept makes the instrument perfect for field portable operation or for use in mobile laboratories. The ceramic sample boats are easily cleaned for reuse. No gas requirement and reusable boats keep operating costs low.

Advanced optics for superior sensitivity and stability

Employing a high-quality thermally stabilized Hg-discharge lamp that emits a very strong, stable line emission at 253.7 nm eliminates the need for any intensity-robbing optical filtering of the source. Two rugged semiconductor detectors provide the quantitative and reference measurements, ensuring a long lifetime of trouble-free operation. Other systems use inexpensive 50% transmittance mirrors to redirect the light source, but this reduces the intensity, lowering sensitivity. Instead, MA-3 Solo uses high quality optical gratings to redirect the full intensity through the sample cell and to the reference detector, for superior sensitivity and stability.

Real time continuous diagnostics

MA-3 Solo’s software continuously monitors key diagnostics, such as all heater temps, flow rates, valve actuations, and voltages. This allows the software to automatically prompt the user if there is an issue, and it also allows for quick and easy troubleshooting for maximum uptime and reliability.

Compact, lightweight design for portability

Engineered for portability, the MA-3 Solo has built-in ergonomic handles and weighs just 13 kg (~28 lbs). It can run on any standard single-phase wall power, from 100 to 240 VAC (50/60 Hz). The rugged design is perfect for field operation or for use in mobile labs.

Windows based and user friendly graphical software

Running under the Microsoft Windows operating system, the MA-3 Solo’s modern software is intuitive to use and provides a real-time graphical representation of the measurement status.


Thermal decomposition mercury analyzer
MA-3 Solo
Measuring objects Solid sample; liquid sample; gaseous sample *1 *2
Analysis method Thermal decomposition-gold amalgam collection cold atomic absorption spectrometry
Measurement principle Non-dispersion double-beam cold atomic absorption spectrometry
Light source Low-pressure mercury discharge lamp
Detector Semiconductor detector (with 254 nm bandpass filter)
Detection limit; Precision Detection limit: 0.01 ng; Precision: RSD 3% (0.1 ng or greater) *3
Measuring range 0 to 10,000 ng
Analysis time 5 to 12 minutes
Flow rate at measurement 0.2 L/min
Exhaust gas treatment Activated carbon filter for removing mercury
Sample heating temperature Up to 850°C
Heating control 3 Step setting
(temperature time arbitrary setting possible)
Carrier gas Self-purified ambient air
Sample bottle Dedicated ceramic boat (Capacity: 1.5 mL)
Size/Weight 403 W x 252 D x 300 H (mm), 13 kg (~28 lbs)
Power source AC100-240 V, 50/60 Hz, 1.1 KVA
Usage environment Temperature: 15 to 35°C; Humidity: 10 to 80% RH (no dew condensation)
Standard accessories Sample boat (10); boat stands; boat tongs; L-cysteine
Control/Data processing system MA3Solo_Win OS Windows 10 Pro
Communication USB
Display (Japanese/English) Peak waveform; calibration curve graph; measurement process; measurement result; equipment status
Data processing Calibration curve (linear formula x 3 types; cubic formula x 3 types); unit setup; concentration computation; baseline correction; statistical calculation (mean value; standard deviation; CV%)
Precision control Equipment check; evaluation of calibration curve; blank check; recovery calculation
Printing Memo; calibration formula/graph; measured value table; statistical calculation; peak waveform Measurement date and time; result of equipment check

*1: For some samples, measurement may be impossible.

*2: For measurement of gaseous samples, an optional collector tube measurement kit is required.

*3: Certain conditions are prerequisite for low concentration measurement.

Applications, Test methods

Sediment, Soil, Food, Biological tissue, Blood, Urine, Ore, Coal, Plastics, Crude Oil, Waste water and more.
Methods: USEPA 7473; ASTM D 6722-01; ASTM D 7623-10; UOP 1009-15; JIS K0102


Option for collector tube measurement

Collector tube measurement kit (a set of 5 collector tube L= 65 mm + holder for measurement)