Spectromètre de tube par-dessus à fluorescence Rayon X à longueur d'onde propagée (WDXRF)

Every industry in the United States regulates production and manufacturing of goods for quality and accuracy. One way to regulate an industrial process is through a Quality Control (QC) Quantitative Calibration with a WDXRF (wavelength dispersive X-ray fluorescence) spectrometer, such as the Rigaku ZSX Primus II spectrometer.

Motor vehicle catalytic converters provide an environment for chemical reactions in which toxic combustion by-products such as nitrous oxides, carbon monoxide and unburnt hydrocarbons are converted to safe or less toxic substances including oxygen, nitrogen, water vapor and carbon dioxide. A refractory ceramic monolith with a honeycomb structure forms the core of the converter to which an alumina "washcoat" is applied at 10-50 μm for increased surface area to boost efficiency.

Being a fast, simple and non-destructive method WDXRF has become a desired quality control technique to check for purity and/or trace process contaminants in the manufacturing of PET. The following Quantitative Regression results, created on a Rigaku ZSX Primus II, originate from empirical calibrations using several PET standard samples which were doped with standard additions of zinc sterate (analyzed by Zn concentration), calcium sterate (analyzed by Ca concentration), talc (analyzed by Mg concentration) and sodium benzoate (analyzed by Na concentration).

Failure analysis can involve many analytical techniques to determine the cause for failure. WDXRF has been proven to be a very useful method to aid in failure analysis since in many cases elemental composition can be central to determining the failure mode. With today's modern semi-quantitative methods, which operate without needing elemental standards, the analysis can be performed quickly and easily.

In an effort to better understand the world around us, geologists are always striving to make new petrographic discoveries about even the most commonplace materials seen every day. Granite is one such material. Due to vast elemental variety found in mined granite, an interesting analytical opportunity presents itself, in which an elemental map or profile analysis capability would be ideal.

This application note demonstrates quantitative analysis for lubricating oil according to ASTM D6443-04 on Rigaku ZSX Primus, a wavelength-dispersive XRF spectrometer.

Geologists are keenly interested in cause and effect with respect to the ancient climatic records that are rocks. Insight into compositional changes due to weather conditions of long ago periods in the Earth's history can be garnered through the application of modern analytical tools such as WDXRF with mapping capabilities. Here is an example of what compositional changes might be seen in a weathered rock specimen's exposed surface and, say, its interior.

Wire failures due to inclusions in the body of the wires are examined using the ZSX Primus Mapping/Micro Analysis feature. The CCD camera within the XRF unit allows for images to be taken thereby letting the user determine where the analysis should take place on the sample via a point and click function.

When an irregularity appears in a production setting, an immediate need for identification and rectification on the problem arises. Failure analysis and quality control testing are analytical staples to any reliable production facility, and the analytical tools that can accomplish these investigative needs are invaluable.

The UltraCarry preparation method concentrates any aqueous liquid sample on a specially designed absorbent pad that is mounted on a Mylar film, which is stretched across a rigid plastic disk. This unusual sample holder (Figure 1) allows the Rigaku ZSX Primus II WDXRF spectrometer to do a standard water type analysis in only a few minutes and attain values at the ppb level, which rival the competitive ICP analysis method for sensitivity- while offering a reduced preparation time, sample quantity, and waste.

This note demonstrates advanced methods to determine the chemical composition in silicate rocks by XRF..

With the increased concern over the proper use of solder paste and disposal of used printed circuit boards, as well as in forensic science, the need to accurately analyze and identify solder alloys has become more important.

This application note demonstrates quantitative analysis of sulfur in petroleum products according to ASTM D2622-10 on Rigaku ZSX Primus, a wavelength dispersive X-ray fluorescence (WDXRF) spectrometer.