potassium and carbon
Preparation and Characterization of New Carbon Paste Microelectrode Modified with potassium hydrotris{N-(2,6-xylyl)-2-thioimidazolyl)}borate and Its Application in the Voltammetric Determination of Hg (II)
... chemically carbon paste electrodes [32]. Carbon paste electrode (CPE) is one of the most popular chemically modified electrodes used with voltammetric ...with carbon paste electrode for the ...
11
Capability of Visible Near Infrared Spectroscopy in Estimating Soils Carbon, Potassium and Phosphorus
... The spectroscopy technique has many advantages over conventional analytical methods since it is fast and easy to implement and with no use of chemical extractants. The objective of this study is to quantify soil total ...
12
One step activation using potassium hydroxide on prepared activated carbon for base transesterification reaction
... activated carbon with KOH via one step activation by impregnate different percentage concentrations of 10%, 15%, 20% and 25% potassium hydroxide into the palm kernel shell and carbonized at 600°C for 2 ...
31
Voltammetric Detection of Potassium Ferricyanide Mediated by Multi-walled Carbon Nanotube/Titanium Dioxide Composite Modified Glassy Carbon Electrode
... conventional three-electrode system, a platinum wire as a counter electrode, an Ag/AgCl (in 3 M NaCl) as a reference electrode and 3 mm diameter glassy carbon electrode (GCE) as a working electrode were employed. ...
12
Voltammetric Oxidation of Potassium Thiocyanate using ErBa2Cu3O7 Modified Glassy Carbon Electrode
... adhered abrasively at electrode surfaces and placed in contact with an electrolyte solvent [3]. Recently the electrochemical properties of the compound and also the mechanism of the electrochemical reaction taking place ...
9
How Old is Earth, and How Do We Know?
... Some readers may find comfort in this unfalsifiable Creationist loophole of “ created antiquity ” or “ prechronism. ” We observe stars and galaxies that are billions of light years away so one might conclude that light ...
8
Chemical Properties of Maize Residues under Application of Organic and Inorganic Nutrient Sources
... Organic carbon was determined using the dichromate – acid oxidation ...N potassium dichromate solution and concentrated orthophosphoric acid were added to ...
6
Fabrication of high purity silica from rice husk and its conversion into ZSM 5
... of potassium and other alkali cations as reported by a previous study ...the carbon compounds, then released potassium and other alkali cations from the rice husk, and as a result, the silica content ...
5
New Micro-sensor Chip Integrated with Potassium Zinc Hexacyanoferrate(II) Nano-composite for Potentiometric Determination of Cesium (I)
... analog, carbon nano-tubes "CNTs" of new structure have been widely used in the chemical sensor fabrication as electrode modifier due to its high conductivity, dispersibility and wettability which increase ...
13
Potentiometric Sensor Platform Based on a Carbon Black Modified Electrodes
... use carbon black as an intermediate layer in potentiometric complex multielectrode system consisting of electrodes containing potassium, sodium, chloride and nitrate selective membrane (with built-in ...
8
Electrochemical Detection of Bisphenol A Using Graphene-Modified Glassy Carbon Electrode
... Glassy carbon electrode was modified with graphene by a simple drop and dry ...glassy carbon electrode using potassium ferricyanide as a redox ...glassy carbon electrode exhibited more facile ...
12
Hydrogeological investigations of the Palmerston North region : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Science with Honours in Earth Science at Massey University
... conductivity, potassium, manganese, sodium, and total dissolved solids increase from east to west within the research area... Free carbon dioxide, fluorine,.[r] ...
14
Intercalation of Metallic Potassium and Fullerene C60 into Natural Graphite
... The works were performed to obtain experimental information for future routine preparation of the products for their further application. We have prepared and partly described a product with stabilized potassium ...
8
Research on the Carbonization Process of Potassium Chloride Solutions in the Presence of Diethylamine
... resulting potassium bicarbonate precipitates quickly from the suspension and is easily filtered, which allows us to recommend the use of existing standard thickeners and filtering plants with a minimum working ...
5
Comparison the Amount of Existing Mineral Elements in Plant Aerial Parts, Litter and Soil of Three Range Species in Taleghan Region
... include carbon, nitrogen, phosphorous and ...nitrogen, carbon and C/N ratio of the species litter had significant differences, so that ...of Carbon and C/N ...and carbon in plant aerial part ...
7
Effect of Fertilization with the Sheep Manure Vermicompost on the Yield of Sweet Potato and Selected Properties of Soil Developed from Loess
... The experiment was carried out in 2016–2018 in Łańcut, in the Rzeszów Foothills. The effect of fertilization using the sheep manure vermicompost on sweet potato of early cultivar (Carmen Rubin) and selected soil ...
7
Effect of neutralising substances on reducing the influence of cobalt on the content of selected elements in soil
... organic carbon - by the Tiurin method and total nitrogen - by the Kjeldahl ...and potassium was determined by the Egner-Riehm method, and that of the available magnesium (Mg) - by the Schachtschabel ...
7
Microbial biomass and soil health as influenced by INM practices in rice - cotton cropping system
... and potassium and microbial population and organic carbon status in rice cotton cropping ...and potassium and microbial population and organic carbon status gain at end of the experiment were ...
8
Effect of liming on the change of some agrochemical soil properties in a long term fertilization experiment
... organic carbon and the content of plant available ...organic carbon content was recorded using Vario MAX CN – Elementar (Hanau, ...and potassium forms was made using the Egner-Riehm method (Egner et ...
5
Utilization of tea plantation weeds to produce vermicompost and estimation of physiochemical changes during its production
... Organic wastes of tea plantations like fallen leaves, weed clippings etc are rich source of nutrients. But, direct incorporation of these waste materials to the soil may cause wastage due to immobilization of nutrients ...
6