Frequently Asked Questions

The self reversal (Smith-Hieftje) technique is a method of background correction in atomic absorption spectroscopy where a high current is momentarily passed through the cathode, producing a dense cloud of neutral atoms in front of the cathode, effectively cutting off the stream of photons produced during normal lamp operating low current.

Heraeus hollow cathode lamps are made from the highest purity materials available to ensure high spectral line intensity, stability, and low noise with good analytical sensitivity. They also have enhanced insulation to cope with high voltage pulse used by the self reversal background correction method.

Heraeus hollow cathode lamps can be used in a variety of applications, including atomic absorption spectroscopy, atomic fluorescence spectroscopy, multi-wavelength laser tuning, laser output stabilization, multi-component analyzers, environmental analyzers, and medical analyzers.

A hollow cathode lamp is a gas discharge device in which the discharge is highly constrained within the cathode of a specific metal, resulting in a unique line spectrum.

No, not all elements are suitable for use with the self reversal technique. The available range of elements is included in the lamp listing.

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