Flyer Non-Metal Analysis Using HR-CS-MAS
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Catalog excerpts

Flyer Non-Metal Analysis Using HR-CS-MAS - 1

Fluorine Analysis With HR-CS MAS © Jesse Barrow – Fotolia.com Fluorine Analysis Easy to Say, And Easy to Do! For the first time, High-Resolution Continuum Source AAS technology (HR-CS AAS) also allows the determination of non-metals with an AAS instrument, the contrAA®. By converting the analytes into characteristic molecules, these can be determined by molecular absorption spectrometry (MAS). HR-CS MAS is a new, sensitive method for the analysis of the total content of fluorine in aqueous and organic solutions as well as directly in solids — independently of the bonding form of fluorine. Without laborious sample preparation, the total fluorine, both free and also organically or inorganically bound fluoride, is converted to the target molecule gallium fluoride (GaF) in the graphite furnace for subsequent spectrometric determination. This means, for the first time, a simple, fast and reliable spectrometric method is available for fluorine determination in almost every matrix and over a wide concentration range. Graphite furnace HR-CS MAS is just as precise, robust and interference free as graphite furnace AAS and is not subject to any restrictions with regard to the pH value and the sample matrix, so that sample preparation is reduced to a minimum. HR-CS MAS — Molecular Absorption Spectrometry for the Determination of Non-Metals Precise Reproducible High Degree of Automation Simple Sample Preparation Cost Effective contrAA® an Overview of HR-CS AAS: HR-CS AAS — one of the most reliable methods for the determination of trace elements One radiation source for all absorption lines in the range Extended applications: analysis of non-metals (halogens, sulfur …) Highest resolution in order to avoid spectral interferences Representation of the absorption spectrum of the sample Simultaneous spectral background correction Use of correction spectra for the removal of spectral interference Higher quality of measurement results

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Flyer Non-Metal Analysis Using HR-CS-MAS - 2

Fluorine Analysis With HR-CS MAS Wavelength/measurement range Calibration curve Spectral vicinity GaF 211.248 nm Detection limit: 0.3 µg/L F Measurement range: 1–500 µg/L F Analytical Measuring Conditions Use of a graphite tube permanently coated with Zr carbide with a PIN platform Temperature-Time Program With Thermal Modifier Pretreatment Volume Thermal pretreatment Fluorine Applications Determination Determination Determination Determination Determination Determination Determination Determination Determination fluorine fluorine fluorine fluorine fluorine fluorine fluorine fluorine...

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