Nitrogen purged TXRF for the quantification of silver and palladium

Holtkamp, Michael; Wehe, Christoph A.; Blaske, Franziska; Holtschulte, Catharina; Sperling, Michael; Kärst, Uwe

doi:10.1039/c2ja30117b

Cited by 16 publications

(14 citation statements)

References 20 publications

(17 reference statements)

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“…For Fe content determination in seeds, plants were grown in parallel on soil under long-day conditions (16 h day, 8 h night, 21 C). Harvested seeds were dried overnight at 120 C, followed by 2 days exposure to 60 C. Their Fe content was determined using Total Reflection X-Ray Fluorescence (TXRF) (Holtkamp et al, 2012;Holtkamp et al, 2013). TXRF was carried out on a S2-PICOFOX instrument (Bruker Nano) with an air-cooled molybdenum anode for X-ray generation.…”

Section: Seed Fe Content Determinationmentioning

confidence: 99%

CIPK11-Dependent Phosphorylation Modulates FIT Activity to Promote Arabidopsis Iron Acquisition in Response to Calcium Signaling

et al. 2019

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Section: Seed Fe Content Determinationmentioning

confidence: 99%

CIPK11-Dependent Phosphorylation Modulates FIT Activity to Promote Arabidopsis Iron Acquisition in Response to Calcium Signaling

et al. 2019

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“…Total reflection X‐ray fluorescence (TXRF) measurements were performed with a S2‐PICOFOX (Bruker AXS, Karlsruhe, Germany) system with a low‐power X‐ray tube by means of a Mo source and an energy‐dispersive, 50 Peltier‐cooled silicon drift detector (SDD, XFlash). The software SPECTRA version 6.1.5.0 (Bruker AXS, Karlsruhe, Germany) was used for data evaluation 68…”

Section: Methodsmentioning

confidence: 99%

Dendrimer‐Encapsulated Palladium Nanoparticles for Continuous‐Flow Suzuki–Miyaura Cross‐Coupling Reactions

et al. 2015

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The cover picture shows dendrimer-encapsulated Pd nanoparticles (NPs), anchored within a continuous-flow microreactor, that efficiently catalyze the Suzuki-Miyaura cross-coupling (SMC) of iodobenzene and p-tolylboronic acid. The different dendrimer generations employed in this study are represented by the size and the ramification of the trees. Pd NPs are entrapped within the trees along the shore, which is "washed" by the river, symbolizing the laminar flow within the microreactor. In their Full Paper, R. Ricciardi et al. show the influence of the dendrimer generation on the catalytic activity of the Pd NPs.The article highlighted by this cover can be found on p. 936 ff. of Issue 6, 2015.The inside cover picture shows the pivotal role of ultrasound and microwaves in the one-pot preparation of a lead-free Pd-catalyst for selective hydrogenation. In their Full Paper, Z. Wu et al. show that sonication in the presence of a capping agent and reduction by microwave heating gives monodisperse Pd nanoparticles supported on boehmite. The catalyst is approximately seven times as active as a commercial Lindlar catalyst per unit of Pd mass taken, and only 6 % (at 95 % conversion) less selective towards semi-hydrogenation. This investigation was performed by the Universities of Turin (Italy) and Hull (UK) in collaboration with DSM Nutritional products Ltd, Basel (Switzerland) and was funded by the FP7 project MAPSYN.The article highlighted by this cover can be found on p. 952 ff. of Issue 6, 2015.

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“…Die Gegenwart von gelösten Metallen wurde für beide katalytischen Systeme (1,2‐Dichlorethan (DCE) und Toluol) mittels Totalreflexions‐Röntgenfluoreszenz (TXRF) gemessen 21. Kupfer stellte sich als unlöslich heraus, wohingegen gelöstes Palladium je nach Reaktionszeit in verschiedenen Mengen gefunden wurde (siehe SI).…”

Section: Methodsunclassified