This Month's Specials

Lab Analysis Instruments

Feel free to review the advantages and benefits of these instruments then give us a call at 541.387.0343 or submit a request for pricing or a consultation. We're looking forward to helping you.

DPA (Deep-sea Probe Analyzer)

DPA (Deep-sea Probe Analyzer) is the state of the art in-situ probe analyzer, which can automatically measure up to four chemical compounds in surface and seawater. This new innovative probe is expressly designed for applied oceanographic research in deep sea environments. The analytical reactor used in DPA has been tested up to 450 bars of external water pressure, using the pressure compensation option.

DPA is able, as a standard, to detect four nutrient compounds, according to the following detection limits:

• Ammonia: 2 ppb
• Orthophosphate: 1 ppb.
• Nitrate + Nitrite: 2ppb
• Nitrite: 0.6 ppb.

The probe automatically performs well-proven spectrophotometric wet chemistries, commonly used in laboratories. Many other analytical methods, including silicates and metals, are available on request.

DPA is the most advanced analytical probe ever designed due to:

• New 5 ml micro Loop Flow Reactor (µLRF), which enables the lowest consumption of reagents and calibrants.
• Exclusive compact multi-beam, fiber optic based, colorimetric detector.
• New compact design, which now ensures a real portability of the instrument.
• Reliable external reagent holder, makes easy substitution of reagents and calibration solutions possible.
• The high modular assembly is designed for easy integration inside any pre-existing buoy, ROV or towed vehicle, with a deployment depth down to -30 m (standard), or down to -4500 m with the deep-sea version of the probe.

Results are directly provided in concentration units and all measured values are stored with date, time, and sample O.D. (Optical Density).
The same data are available remotely through a serial communication port, which allows the complete configuration and remote control of the probe, using an external Windows based software.

Reagents handling and built-in calibration feature

Sealed bags containing reagents are placed in the external reagent holder and are Refrigerating directly by the surrounding water. The reagent bags are connected to the internal analytical reactor, with an exclusive fast hydraulic multi-connector. Reagent consumption is limited to 80 microliters of each reagent per analysis. Auto-calibration is performed using concentrated standard solutions, contained in the external reagent holder.

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