Biological sulphur-containing compounds – Analytical challenges

The authors would like to thank Cornelius Brombach for the help with Fig. 1. C. Brombach drew the figure after a draft made by the authors.Peer reviewedPostprin

Tellurium, selenium and cobalt enrichment in Neoproterozoic black shales, Gwna Group, UK : Deep marine trace element enrichment during the Second Great Oxygenation Event

We are grateful to John Still for his skilled technical support and the ACEMAC facility at the University of Aberdeen. Research funded by NERC grant NE/M010953/1 and NERC facility grant IP-1631-0516. AJB is funded by NERC support of the Isotope Community Support Facility SUERC. The authors thank Eva Stüeken, Ross Large and one anonymous reviewer for their constructive feedback on the original manuscript.Peer reviewedPublisher PD

Francos, pero excluidos de la mezquita y del cementerio: los Bellito y los Galip de la morería de Zaragoza

En: Estudios en memoria del Profesor Dr. Carlos Sáez. Homenaje, Mª del Val GONZÁLEZ DE LA PEÑA,(coord.), Universidad de Alcalá, Servicio de Publicaciones, 2007, p. 341-352Los Bellito fueron maestros de obras y artesanos reconocidos y también lo fueron los Galip algo más tarde. Su franquicia de no contribuir en los impuestos de la morería de Zaragoza, porque dependían de señorío eclesiástico, les comportó una cierta exclusión social puesto que la aljama afirmaba que quien no contribuía en las cargas no debía beneficiarse de los servicios religiosos como la mezquita o el cementerio. Esa exclusión fue causa de momentos de tensión, que se analizan.Ministerio de Educación y Ciencia, (HUM2004-0096) y Departament d'Universitats, Recerca i Societat de la Informació, (SGR2005-193)Peer reviewe

A rapid monitoring method for inorganic arsenic in rice flour using reversed phase-high performance liquid chromatography-inductively coupled plasma mass spectrometry

Savarin Sinaviwat thanks the Royal Thai Government Scholarship for financial support.Peer reviewedPostprin

Te-rich protolith for PGE mineralisation in NE Scotland

We are grateful to Adrian Boyce and John Still for skilled technical support. This work was supported by NERC grant NE/M010953/1Postprin

Speciation of trace elements in the Bowland Shale

This research was supported by NERC grant number NE/M010953/1Peer reviewedPostprin

Arsenate Impact on the Metabolite Profile, Production, and Arsenic Loading of Xylem Sap in Cucumbers (Cucumis sativus L.)

Arsenic uptake and translocation studies on xylem sap focus generally on the concentration and speciation of arsenic in the xylem. Arsenic impact on the xylem sap metabolite profile and its production during short term exposure has not been reported in detail. To investigate this, cucumbers were grown hydroponically and arsenate (AsV) and DMA were used for plant treatment for 24 h. Total arsenic and arsenic speciation in xylem sap was analyzed including a metabolite profiling under AsV stress. Produced xylem sap was quantified and absolute arsenic transported was determined. AsV exposure had a significant impact on the metabolite profile of xylem sap. Four m/z values corresponding to four compounds were up-regulated, one compound down-regulated by AsV exposure. The compound down-regulated was identified to be isoleucine. Furthermore, AsV exposure had a significant influence on sap production, leading to a reduction of up to 96% sap production when plants were exposed to 1000 μg kg−1 AsV. No difference to control plants was observed when plants were exposed to 1000 μg kg−1 DMA. Absolute arsenic amount in xylem sap was the lowest at high AsV exposure. These results show that AsV has a significant impact on the production and metabolite profile of xylem sap. The physiological importance of isoleucine needs further attention

Correction: Spatiotemporal distribution and speciation of silver nanoparticles in the healing wound.

Correction for 'Spatiotemporal distribution and speciation of silver nanoparticles in the healing wound' by Marco Roman et al., Analyst, 2020, 145, 6456–6469, DOI: 10.1039/D0AN00607F

Environmental effects on arsenosugars and arsenolipids in Ectocarpus (Phaeophyta)

We thank Gillian Milne, of the Aberdeen Microscopy Facility, University of Aberdeen, for help in preparing and viewing the samples through TEM and Ingo Maier, from the Universita¨t Konstanz, for kindly providing us with an optimised processing schedule for the fixation of Ectocarpus for TEM. We also express our gratitude to Dawn Shewring for her help with algal culturing. A´ . H. Petursdo´ttir thanks the Icelandic research fund (grant reference 130542–051), the SORSAS award and The College of Physical Sciences at Aberdeen University for financial support. F. C. Ku¨pper also received funding from the MASTS (The Marine Alliance for Science and Technology for Scotland) pooling initiative and their support is gratefully acknowledged. MASTS is funded by the Scottish Funding Council (grant reference HR09011) and contributing institutions.Peer reviewedPublisher PD