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Calcium hollow cathode lamp pdf#
Calcium hollow cathode lamp full#

PerkinElmer offers a full range of single-element and multi-element hollow cathode lamps and high intensity electrodeless discharge lamps for those elements for which they are more effective. Published 20 July 2009 2009 IOP Publishing Ltd Journal of Physics B: Atomic, Molecular and Optical Physics, Volume 42, Number 16 Citation U Dammalapati et al 2009 J. U Dammalapati 1, I Norris 1 and E Riis 1. Hollow-cathode lamps may be used for calcium, magnesium and nickel, but a simple microwave-excited discharge tube gives much better sensitivity than a hollow-cathode lamp for iron. Atomic Absorption Lamps PerkinElmer has over 40 years of expertise designing and manufacturing lamps. Saturated absorption spectroscopy of calcium in a hollow-cathode lamp. Measurements of atomic absorption for these elements at 24 A respectively yield limits of determination corresponding to 10 ppm in alumina. Iron and nickel may be co-precipitated on hydrated manganese(IV) oxide and their 8-hydroxyquinolates extracted at pH 4.5. The limits of determination correspond to 10 and 1 ppm of calcium and magnesium in solid alumina. The extract may be sprayed into the airpropane flame of a simple unmodulated spectrophotometer and atomic-absorption measurements for calcium and magnesium made at 42 A respectively.

Calcium hollow cathode lamp pdf#

pdf View Full Product DetailsĮPA Method - 215_1 - Calcium AA Direct Aspiration.The determination of trace amounts of calcium and magnesium in solutions containing large concentrations of aluminium salts may be accomplished by co-precipitating their hydroxides on iron(III) hydroxide, dissolving the precipitate, and extracting the 8-hydroxyquinolates of calcium and magnesium into methyl isobutyl ketone at about pH 11. 5" lamps for all systems except Perkin-Elmer system.ĮPA Method - 215_1 - Calcium AA Direct Aspiration. The materials are carefully selected in our manufacturing to avoid spectral interference from fill gas or impurities in the cathode material. Utilizes Total Quality Control (TQC) to monitor, control and inspect every single step of the hollow cathode lamp manufacturing process. Calcium/magnesium (Ca/Mg) coded multi-element hollow cathode lamp Chrom Tech, Inc. Alternative Wavelengths, 239.9nm Window material, Quartz Element. Our lamps may be operated at only half of the instrument manufacture recommended current for sufficient intensity, resulting in long lifetime of the lamps. Twelve (12) Pin Coded Wavelength 422.7nm. Our lamps are specially designed to emit high intensity at the recommended operating current, resulting in low Signal-to-Noise ratio and excellent performance.

Note: All used lamps are sold as-is with a 90-day right of.

Reliable quality so your expectations will always be met Hollow Cathode lamp for Perkin Elmer with Coded Plug Element: Calcium (Ca) 2.

Wide selection so Varsal can be your one source for all HC Atomic absorption spectrophotometer: it is equipped with magnesium hollow cathode lamp and calcium hollow cathode lamp.

Enhanced sensitivity to produce great results even with difficult samples.

Low operating current to extend lifetime of lamps even further.

High intensity light output resulting in low signal-to-noise ratio and excellent performance.

The larger the lamp, the greater the inert gas volume and the longer the lamp lifetime.

Long life for economical, operator convenience Best Sellers Rank: 1,403,602 in Industrial & Scientific (See Top 100 in Industrial & Scientific) 53 in Lab Spectrophotometers. To prolong the life of a Lumina Hollow Cathode Lamp (HCL), we produce lamps with larger internal volume so that a greater supply of fill gas at optimum pressure is available. The profile of the calcium 422673 resonance line was measured for a standard neon-filled hollow-cathode lamp using a variable gap Fabry-Perot interferometer.

Take our word for it, we have used them all over the last 40 years! * (With the exception of Selenium hollow cathode lamps, they have a 2 month warranty due to the volatility of Selenium)īuck Scientific sources hollow cathode lamps from a few different vendors, since over time we have learned that some manufactures do different elements better than others. All lamps have a 6 month warranty against manufacturer defect. Buck Scientific tests each hollow cathode lamp at our Norwalk, CT manufacturing facility on the new Atomic Absorption spectrophotometers before shipping them out to customers.