5E-HGT2320 Automatic Mercury Analyzer is used to determine the mercury in liquid and solid material such as coal, coal fly ash, soil, sludge, sediment, ore, mineral, foodstuff, waste water and fodder.
Operation Principle:
5E-HGT2320 is a direct mercury analyzer of solid and liquid samples which employs the thermal decomposition process described in U.S. EPA Method 7473.
The samples are firstly dried, in which moisture shall be discharged in a form of vapor by a three-way valve. Then the sample is thermally decomposed in an oxygen-rich stream and the decomposition products are carried by flowing oxygen to the catalytic section of the furnace, where oxidation is completed and all interfering substances, such as halogens and nitrogen/sulfur oxides are eliminated. The remaining decomposition products are further carried to a gold amalgamator where the mercury is selectively trapped.
After the system is flushed with oxygen to remove the remaining decomposition products, the amalgamator is rapidly heated, releasing mercury vapor. Flowing oxygen carries the mercury vapor through a253.7nm wavelength atomic absorption spectrophotometer. Mercury concentration is measured via absorbance peak height or peak area.
Features:Safety First
Determine total mercury directly without sample preparation or other wet chemistry. No hazardous waste produced and no corrosive chemicals used.
High Efficiency
Results in 5 minutes. An auto-sampler with as many as 70 sample positions is provided.
Wide Application
5E-HGT2320 is able to analyze a variety of sample types including solids and liquid in a wide range of applications.
Easy Operation
Just input the sample mass into software and load the sample onto the auto-sampler, 5E-HGT2320 will finish the test automatically.
Minimum Analysis Cost
Compared with the traditional CV-AAS mercury analysis techniques, 5E-HGT2320 saves more than 70% in cost for customers
Sample Application:
Coal Soil Ore Minerals Foods
Feed Fertilizer Wastewater Sludge
Specifications:
| Model |
5E-HGT2320 Automatic Mercury Analyzer |
| Conforms to Method |
US/EPA 7473, ASTM D6722 |
| Principle |
Sample Thermal Decomposition, Atomic Absorption |
| Instrument control |
External PC computer system |
| Sample types |
Liquid or solid |
| Max. Sample Volume (Liquid)* |
1000 µl (ceramic boat), 1500 µl (nickel boat) |
| Max. Sample Weight (Solid)* |
1000 mg (ceramic boat), 1500 mg (nickel boat) |
| Light Source |
Low pressure mercury lamp |
| Hg wavelength |
253.65 nm |
| Detectors |
UV enhanced photodiodes (2) |
| Number of samples |
70 with small or large boats |
| Detection limit |
0.001 ng Hg |
| Working Range |
Automatic scale change / Dynamic range 0 ng – 1500 ng Hg |
| Repeatability |
<1.5 % @ 10 ng Hg |
| Typical Analysis Time |
5 minutes |
| Sample treatment Drying time Decomposition time Waiting time |
Adjustable from 1– 999 s 1– 999 s 1– 999 s |
| Calibration |
Standard solution or CRM |
| Number of standards |
Minimum 2 (blank & high), maximum 33 |
| Carrier gas |
Oxygen |
| Input pressure |
15 Psi (100 kpa) |
| Peak flow |
300ml/min |
| Peak (W) -Energy consumption |
3000W |
| Standby (W)-Energy consumption |
<100W |
| Power Supply |
AC110/220V, 50/60Hz |
| Weight (kg) |
30 kg |
| Dimensions (L x W x H) |
500 x 460 x 350 mm |
| *Depend on different sample density |
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