Minimum investment and low operating costs
The MHS-15 Mercury/Hydride System is a manual accessory for high-sensitivity determination of mercury and hydride-forming elements, such as As, Se, Sb, Te, Bi and Sn, by flame atomic absorption (AA) spectroscopy. Mercury/hydride atomic absorption is the preferred technique for trace determination of mercury and the metallic hydride-forming elements, because it offers the best possible detection limits, down to the ng range, while minimizing capital investment and operating costs. The technique is simple, easy-to-handle, and reliable and has been proven in tens of thousands of laboratories worldwide.
Simple operation
The MHS-15 system includes a reaction assembly and a quartz-cell assembly. The analyzer is free-standing and is placed adjacent to the AA spectrometer sample compartment. It includes a reaction flask, a reservoir for the reducing agent and all pneumatic components for carrier transportation of the metallic vapors to the quartz cell.
The cell mounts on a standard 10-cm PerkinElmer® burner head, permitting the cell to be heated in the spectrometer flame. The quartz cell is positioned in the light beam of the spectrometer and alignment is provided by the instrument’s burner adjustment controls. Its quartz cell can be easily tilted out of the flame using a swivel mount.
Due to the reaction chemistry in the mercury/hydride process, the analyte is completely separated from its matrix during analysis, eliminating interferences.
Technical data
| Absorption cell | Quartz cell, 165 mm long, 12 mm diameter |
| Cell heating | Up to approx. 1000 °C with air/acetylene flame |
| Reaction flask | Polypropylene flask with special, conically formed inner side.
Connection to the analyzer assembly with special joint with O-ring gasket. |
| Sample volume | Max. 50-mL volume |
| Reducing agent | NaBH4 or SnCl2 |
| Inert gas supply | Argon, inlet pressure 2.5-3.5 bar (36-51 psig) approx. consumption 1.1 L/min |
| Power supply | No electrical supply is required. |
| Dimensions | 17 cm x 37.5 cm x 16 cm (WxHxD) |
| Weight | Approximately 4.3 kg |
