ICP-OES ACTIVA-M - HORIBA Jobin Yvon - #5

While the S³-base and assistant software tools make multi-line analysis a reality, without the advanced detector technology, optics and torch system of ACTIVA-M, the assistance would be more limited in capability.

ACTIVA-M, built on A Platform for the Future™,

maintains the strengths of HORIBA Jobin Yvon ICP spectrometers, while incorporating advanced CCD technology.

The addition of adjacent spectral windows allows the system to cover the entire 120-800 nm range: each entire spectrum is stored, allowing recalculation at any time on any element.

This configuration offers :

■ Minimised spectral interferences, thanks to high and constant resolution

■ Excellent limits of detection, regardless of the matrix complexity, thanks to high light throughput

■ Ability to determine halogens in the far UV

The unique megapixel CCD based-camera allows obser­vation of the Normal Analytical Zone of the plasma. This vertical torch-based Total Plasma View provides instrumental limits of detection comparable to axial or dual view systems, but is superior in terms of :

■ Warm-up time of typically 15 min (computer controlled automatic solid-state Rf generator running at 40.68 MHz)

■ Low argon consumption (12 L/min) and a quick-mount demountable torch with less parts replacement

■ Perfect reproducibility in torch positioning and stored operating parameters, facilitating multi-user operation

■ Long-term stability even for difficult matrices, offered by the configuration of the torch associated with the efficient Smart-Hood extraction

■ Minimised matrix effects and few memory effects

• Allowing complex matrix, high dissolved solids or organic sample analysis (thanks to the large internal diameter, 3 mm, of the injector and to the unique sheath gas device)

• Providing better limits of detection

■ Linear concentration range over a minimum of five decades

■ High sample throughput with minimal re-sloping effort

■ Incomparable ICP-AES performance for alkaline elements

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As 188.983 nm —Mn 259.373 Se 196.026 nm —Zr 343.823 Pb 220.353 nm

123

4

The Czerny-Turner optical system is equipped with a megapixel, unequalled low-noise CCD detector, leading to spectral windows up to 8 or 16 nm with simulta­neous measurement of multiple lines and backgrounds.

Based on dual large back-to-back gratings, the resolu­tion is, then, constant not only within a window but also over the spectral range. It is better than 10 pm with the 4343 grooves/mm holographic grating (in the range 120-430 nm), and better than 18 pm with the 2400 grooves/mm grating.

Considering the ACTIVA-M low-noise, high-speed CCD detector, combined with possible exposure times in the range 1:1000, a practical dynamic range (signal before saturation-to-readout noise ratio) of 10⁷ can be achieved. Such a dynamic range is usually higher than the ratio of the maximum concentration to the limit of quantitation, with the maximum concentration corres­ponding to the beginning of graph curvature.