Heraeus 1-element 3BNX/K-U (3BNXK-U) Hollow Cathode Lamp, Potassium K, 37 mm Standard, 7pin, Unicam / Thermo Coded - 80079405

Heraeus 1-element 3BNX/K-U (3BNXK-U) Hollow Cathode Lamp, Potassium K, 37mm Standard, 7pin, Unicam / Thermo Coded

Hollow cathode lamps (HCL) are discharge lamps designed for use in Atomic Absorption (AA) instruments. They consist of a cathode made from the element of interest, an anode and an inert filler gas contained in a glass envelope. Noblelight offers the widest selection of single- and multielement coded / non-coded in low and high-current, 37 mm and 50 mm lamps in the industry.

Noblelight hollow cathode lamps are available both for OEMs and as a replacement lamp by discerning users the world over. The range includes standard lamps and data-coded versions for PerkinElmer and ThermoFisher atomic absorption spectrometers.

• Customary diameters 1 ½" and 2"
• Low-current and high-current versions
• Standard and encoded lamps
• Available for OEMs and end users
• Long life due to higher gas volume
• Clear signals and low distortion due to special cathode technology
• Can be used for almost any AA instrument

ADVANTAGES

• Good chemical sensitivity
• High spectral response
• Stable light output
• Low noise characteristics
• Long operating and shelf life

APPLICATIONS

• Atomic Absorption Spectroscopy
• Atomic Fluorescence Spectroscopy
• Multi wavelength laser tuning

Single-Element Lamps

The Heraeus catalogue includes 70 single-element lamps in standard 37 mm (1.5 inch) and 50 mm (2 inch) diameters to fit almost any AA instrument. All cathode materials are selected from the highest purity available – usually 99.99 % or better – to ensure high spectral line intensity, stability and low noise with good analytical sensitivity. The window material is selected to achieve the optimum transmission of the primary spectral lines of the cathode element. Borosilicate glass is used for wavelengths over 350 nm, and high quality quartz for shorter wavelengths.

Standard 37 mm Lamps

37 mm hollow cathode lamps are suitable for most commercial atomic absorption instruments. Standard lamps may also be used in computer controlled spectrophotometers which are designed to take coded lamps as these instruments normally have the facility to be set up manually. Manual setting up of lamp current, wavelength, slit width, gas conditions and burner height takes only a few moments and allows the operator to set the optimum conditions for each particular analysis, which can be stored and recalled when required. Indeed in many cases the instrument will set default conditions for these parameters on entry of the element. Whilst these parameters are generally suitable for a particular element, they may need fine tuning to suit the specific analysis being carried out.