Comparative Gas Sensing in Cobalt, Nickel, Copper, Zinc, and Metal-Free Phthalocyanine Chemiresistors

2009 ◽  
Vol 131 (2) ◽  
pp. 478-485 ◽  
Author(s):  
Forest I. Bohrer ◽  
Corneliu N. Colesniuc ◽  
Jeongwon Park ◽  
Manuel E. Ruidiaz ◽  
Ivan K. Schuller ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Metal Free ◽  
Cobalt Nickel ◽  
Nickel Copper ◽  
Copper Zinc

Direct electrochemical synthesis of cobalt, nickel, copper, zinc, cadmium, tin and lead zincon complexes

1992 ◽  
Vol 17 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Hassan E. Mabrouk ◽  
Mohamed Gaber ◽  
A. Z. El-Sonbati ◽  
Gad B. El-Hefnawey
Keyword(s):  
Electrochemical Synthesis ◽  
Cobalt Nickel ◽  
Nickel Copper ◽  
Zinc Cadmium ◽  
Copper Zinc

Graphene oxide/cellulose membranes in adsorption of divalent metal ions

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 96595-96605 ◽  
Author(s):  
Rafal Sitko ◽  
Marcin Musielak ◽  
Beata Zawisza ◽  
Ewa Talik ◽  
Anna Gagor
Keyword(s):  
Graphene Oxide ◽  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Cobalt Nickel ◽  
Nickel Copper ◽  
Zinc Cadmium ◽  
Copper Zinc ◽  
Cellulose Membranes ◽  
Cadmium And Lead

In this paper, graphene oxide/cellulose membranes were prepared in order to perform effective adsorption of heavy metal ions: cobalt, nickel, copper, zinc, cadmium and lead.

scholarly journals ИК-СПЕКТРОСКОПИЧЕСКОЕ ИССЛЕДОВАНИЕ СТРУКТУРЫ БИОКОМПЛЕКСНЫХ СОЕДИНЕНИЙ МЕТАЛЛОВ С НАКСОДЖИНОМ

2019 ◽  
Vol 1 (11(41)) ◽  
pp. 10-16
Author(s):  
Цивцивадзе Тенгиз Иванич ◽  
Брегадзе Нестан Левановна ◽  
Чигогидзе Нодар Шалвович ◽  
Дидбаридзе Изольда Сардионовна
Keyword(s):  
Metal Complexes ◽  
High Frequency ◽  
Frequency Region ◽  
Organic Ligands ◽  
High Frequency Region ◽  
Cobalt Nickel ◽  
Acceptable Range ◽  
Nickel Copper ◽  
Stretching Vibration ◽  
Copper Zinc

During researching the spectra of biocomplexes of synthesized metals synthesized by us with the organic laxand Naxogin (nimorazole), we compared the spectra of the obtained complexes with the ir-spectra of free (uncoordinated) naxogin (nimorazole). The research showed that the stretching vibration frequencies υ(C=N) were A~10–25 cm-1 in the high- frequency region and rarely in the higher metallicity (but in the acceptable range), which indicates that naxogin is present in these metal complexes (nimorazole). In a coordinated state through one of the two nitrogen atoms of the imidazole cycle. Comparisons were also made with the spectra of noxogenic (nimorazole) metal complexes (manganese, cobalt, nickel, copper, zinc) and other metals chromium(II), iron(II) and iron(III), which convinced us that organic ligands were only centrally connected with the complexes atoms.

scholarly journals Analysis of selected elements in water in the drinking water preparation plants in Belgrade, Serbia

2011 ◽  
Vol 65 (2) ◽  
pp. 187-196
Author(s):  
Davor Antanasijevic ◽  
Natasa Lukic ◽  
Viktor Pocajt ◽  
Aleksandra Peric-Grujic ◽  
Mirjana Ristic
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
River Water ◽  
Distribution System ◽  
Inductively Coupled Plasma ◽  
Raw Water ◽  
Cobalt Nickel ◽  
Nickel Copper ◽  
Groundwater Supply ◽  
Copper Zinc

Belgrade's water supply relies mainly on the River Sava and groundwater supply wells, which are located in the vicinity of the river and Ada Ciganlija. In this paper, the content of aluminum, boron, chromium, manganese, cobalt, nickel, copper, zinc, arsenic, cadmium, barium and lead was analyzed in raw water as well as drinking water distributed by the Water Supply and Sewage of Belgrade. A total of 14 samples were examined from all water treatment plants that are part of the distribution system. The measurements were conducted using the inductively coupled plasma-mass spectrometry (ICP-MS) technique. The aim of this research was to examine the effectiveness of drinking water preparation process in the plants belonging to the Water Supply and Sewage of Belgrade. The content of certain elements varies considerably in raw water (river and groundwater): the concentration of boron in river water is two to three times lower than the concentration in groundwater; the concentration of arsenic in river water is ten to twenty five times lower than the concentration in groundwater; the concentration of aluminum in all groundwater samples was below the detection limit of the instrument (0.50 ?g/dm3), whilst in the river water the content of aluminum was about 50 ?g/dm3 and the concentration of manganese in the river water was up to 10 times lower than the concentrations in groundwater. In all drinking water samples the concentration of the elements were bellow the maximum allowed levels according to the Serbian regulations. Correlation coefficients determined for boron, manganese, cobalt, nickel, copper, zinc, arsenic, barium and lead, which were analyzed in raw waters, show that four groups of elements can be distinguished. Boron, manganese, arsenic and barium are related to each other and probably have a common natural origin; copper and lead probably have a common anthropogenic origin; correlation of nickel and cobalt was observed, while zinc was not in correlation with any other element.

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