Results 31 to 40 of about 87,118 (303)

Association between environmental exposure to perchlorate, nitrate, and thiocyanate and serum α-Klotho levels among adults from the National Health and nutrition examination survey (2007–2014)

BMC Geriatrics, 2022
Background & aims Aging is a pathophysiological process driven by a diverse set of complex biological processes, and environmental pollution plays an important role in this process.
Yu Yao, Gao-yan He, Xiao-juan Wu, Chao-ping Wang, Xiao-bin Luo, Yong Zhao, Ying Long   +6 more
doaj   +1 more source

Environmental factors other than iodine deficiency in the pathogenesis of endemic goiter in the basin of river Ganga and Bay of Bengal, India

BLDE University Journal of Health Sciences, 2016
Background: In iodine-replete basin of the river Ganga and the Bay of Bengal, we studied iodine nutritional status of school children by goiter prevalence and their urinary iodine (UI), iodine content in edible salt, and the bioavailability of iodine ...
Amar K Chandra, Arijit Debnath, Smritiratan Tripathy, Haimanti Goswami, Chiranjit Mondal, Arijit Chakraborty, Elizabeth N Pearce   +6 more
doaj   +1 more source

Sequential Spectrophotometric determination of methanol and iron in vinegar by a flow injection-pervaporation method [PDF]

, 2002
An easily automatable sequential flow-injection-pervaporation method is proposed for the photometric determination of methanol and iron in vinegar. The method is based on separation of the methanol from the sample matrix by pervaporation followed by its ...
Gonzalez-Rodriguez, Jose, Luque de Castro, Maria Dolores, Perez-Juan, Pedro   +2 more
core   +1 more source

A New Composition for Co(II)-porphyrin-based Membranes Used in Thiocyanate-selective Electrodes

Sensors, 2006
In the present paper, the potentiometric response characteristics of ametalloporphyrin-based electrode in o-nitrophenyloctylether (o-NPOE) plasticizedpolyvinyl chloride (PVC) membrane are presented for a set of monovalent anions.
Otilia Bizerea-Spiridon, Eugenia Fagadar-Cosma, Dana Vlascici   +2 more
doaj   +1 more source

Flow-through Bulk Optode for Spectrophotometric Determination of Thiocyanate and Its Application to Water and Saliva Analysis

Sensors, 2006
A flow-through spectrophotometric bulk optode for the flow-injectiondetermination of thiocyanate is described. As active constituents, the optode incorporatesthe lipophilized pH indicator 5-octadecanoyloxy-2-(4-nitrophenylazo)phenol andmethyltridodecyl ...
José Fernández, Isabel Albero, Concepción Sánchez-Pedreño, Joaquín A. Ortuño, Soledad García   +4 more
doaj   +1 more source

[MII(NCS)2(nia)2(OH2)]: Preparation, Crystal Structure and Thermal Properties (MII = Mn, Fe; nia = nicotinamide)

Acta Chimica Slovenica, 2017
Two novel isostructural coordination compounds of manganese(II) (1) and iron(II) (2) with common formula [MII(NCS)2(nia)2(OH2)2] have been prepared from water solution of appropriate metal salt, nicotinamide and KSCN.
Marta Počkaj, Nives Kitanovski, Boris Čeh, Romana Cerc-Korošec   +3 more
doaj   +1 more source

Cooperative Photometallobiocatalysis: Nonheme Fe Enzyme‐Catalyzed Enantioconvergent Radical Decarboxylative Azidation, Thiocyanation, and Isocyanation of Redox‐Active Esters

Angewandte Chemie, EarlyView.
Through the directed evolution of an underexploited nonheme Fe extradiol dioxygenase, we developed a unified cooperative photobiocatalytic strategy to allow for three types of enantioconvergent radical transformations, including azidation, thiocyanation, and isocyanation.
Liu‐Peng Zhao, Ken Lin, Pei‐Pei Xie, Huichong Liu, Hengye Xiang, Xin Liu, Yunlong Zhao, Peng Liu, Yang Yang   +8 more
wiley   +2 more sources

A comparison of enhancement techniques for footwear impressions on dark and patterned fabrics [PDF]

, 2013
The use of chemical enhancement techniques on porous substrates, such as fabrics, poses several challenges predominantly due to the occurrence of background staining and diffusion as well as visualisation difficulties.
Bandey, Helen, Dawson, Lorna, Farrugia, Kevin J., Niamh, Nic Daéid   +3 more
core   +2 more sources

Asymmetric Coordination in Cobalt Single‐Atom Catalysts Enables Fast Charge Dynamics and Hierarchical Active Sites for Two‐Stage Kinetics in Photodegradation of Organic Pollutants

Angewandte Chemie, EarlyView.
This investigation demonstrates an efficient synthetic methodology for the fabrication of atomically dispersed cobalt species anchored on carbon nitride substrate, featuring distinctive asymmetric Co─C2N3 coordination environments and hierarchical active sites.
Xiaoming Liu, Yang Zhang, Puhua Sun, Fengting He, Yuzhao Wu, Shuaijun Wang, Shaobin Wang, Jinqiang Zhang   +7 more
wiley   +2 more sources

The phytoextraction of gold and palladium from mine tailings : this thesis is presented in fulfilment of the requirements for the degree of Master of Philosophy [PDF]

, 2002
The extraction of gold and palladium from a South African mine tailing (Klipfontein) and artificial substrate was examined. A variety of solutions were tested and extractants observed to dissolve large quantities of metal were subsequently used in trials
Walton, Dylan
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