Metal acetylacetonates dissolved in UV-curing resin as solid reference material for trace element measurements in organic samples

Abstract

In this article a preparation method for reference materials containing trace amounts of metals is presented. The applicability is shown for spatial resolved techniques like µXRF and LA-ICP-MS, for a...

Confocal micro X-ray fluorescence analysis for the non-destructive investigation of structured and inhomogeneous samples

“…Confocal overlapping of the foci of two X-ray optics creating a depth-sensitive probing volume (right) and sample movement by x-y-z motorized sample stage. Adapted from reference [ 27 ] with permission from the Royal Society of Chemistry …”

“…Hereby, the optimization of the layer preparation was necessary to achieve a very high homogeneity of the element distribution in the polymer as well as constant layer thicknesses. The successful implementation for CMXRF analysis was demonstrated and evaluated by several multilayer samples containing iron filler materials [ 27 ].…”

“…These materials should be characterized by a high vacuum and long-term stability, the ability to select elements of choice to implement into the materials, an excellent homogeneity on the micro- and nanoscale, an available concentration range from weight-% down to ppm and possibly ppb, the opportunity to realize variable layer thicknesses, and a good replicability of the manufacturing procedure. These idealized demands are not easily met, but could already be partly accomplished by the model systems based on polyacrylates introduced for a wide selection of elements [ 27 ]. With these systems, future development of geometrically complex reference materials, e.g., samples with edges, inclusions, or concentration gradients, can be expected.…”

2023 atomic spectrometry update – a review of advances in X-ray fluorescence spectrometry and its special applications

“…Homogeneous elemental RMs are a valuable tool in quantitative elemental microscopy. Rogoll et al 21 dissolved metal acetylacetonates in a UV-curing resin to prepare a set of RMs with trace amounts of Al, Ca, Cd, Co, Cr, Fe, La, Mg, Pb, Sr and Zn. The ability to stack the cured-resin layers made it possible to undertake depth-resolved analysis.…”

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…Another paper reporting the preparation of reference materials suitable for the analysis of polymers was presented by Rogoll et al 100 These authors prepared a series of layered materials by dissolving metal acetylacetonates in the liquid monomer TerraGloss® UV Glanzlack 8/372 F NVK. The mixture was then placed on a glass sheet and allowed to wait for 10 minutes before being UV-cured at 365 nm for 10 minutes.…”