Vanadium-zinc

Copper, cobalt, nickel, manganese, boron, vanadium, zinc, lead, molybdenum, various organic vitamins, various amino acids... 

Samples Analyzed by Inductively Coupled Plasma (ICP) Metals — Where two or more of the following analytes are requested on the same filter, an ICP analysis may be conducted. However, the Industrial Hygienist should specify the metals of interest in the event samples cannot be analyzed by the ICP method. A computer print-out of the following 13 analytes may be typically reported Antimony, Beryllium, Cadmium, Chromium, Cobalt, Copper, Iron, Lead, Manganese, Molybdenum, Nickel, Vanadium, Zinc. Arsenic — Lead, cadmium, copper, and iron can be analyzed on the same filter with arsenic. 

Metal-induced reductive dimerization of carbonyl compounds is a useful synthetic method for the formation of vicinally functionalized carbon-carbon bonds. For stoichiometric reductive dimerizations, low-valent metals such as aluminum amalgam, titanium, vanadium, zinc, and samarium have been employed. Alternatively, ternary systems consisting of catalytic amounts of a metal salt or metal complex, a chlorosilane, and a stoichiometric co-reductant provide a catalytic method for the formation of pinacols based on reversible redox couples.2 The homocoupling of aldehydes is effected by vanadium or titanium catalysts in the presence of Me3SiCl and Zn or A1 to give the 1,2-diol derivatives high selectivity for the /-isomer is observed in the case of secondary aliphatic or aromatic aldehydes. 

Major constituents (greater than 5 mg/L) Minor constituents (O.Ol-lO.Omg/L) Selected trace constituents (less than 0.1 mg/L) Bicarbonate, calcium, carbonic acid, chloride, magnesium, silicon, sodium, sulfate Boron, carbonate, fluoride, iron, nitrate, potassium, strontium Aluminum, arsenic, barium, bromide, cadmium, chromium, cobalt, copper, gold, iodide, lead, Uthium, manganese, molybdenum, nickel, phosphate, radium, selenium, silver, tin, titanium, uranium, vanadium, zinc, zirconium... 

SIC INOUSTRY NUMBER METAL. Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Mercury Nickel Selenium Silver Vanadium Zinc... 

The less common elements in coal ash (e.g., beryllium, chromium, copper, manganese, nickel, lead, vanadium, zinc, and cadmium) can also be determined using atomic absorption (ASTM D-3683). In the test method, the ash is dissolved by mineral acids, and the individual elements determined by atomic absorption spectrometry. 

For suspension cultures, the concentration of calcium and magnesium should be kept low to prevent cell aggregation and adhesion. Other metals, such as iron, manganese, selenium, vanadium, zinc, copper, and molybdenum, are usually added to the culture medium, but at reduced concentrations, and mainly if the medium is not supplemented with animal serum. 

Emissions from coal-fired power plants have been the subject of intensive study by many workers (27,28,29,30). However, oil-fired power plants also can be expected to emit trace metals. A comparison of the approximate metal content of typical coals and oils given in Table VIII indicates that oils contain at least 13 of the important metals with high (> 10 ppm) concentrations of vanadium, zinc, and nickel. Coal contains at least 14 of the environmentally important metals with very high (> 100 ppm) concentrations of iron, magnesium, titanium, and zinc. 

See also Aluminum Antimony Arsenic Barium Beryllium Bismuth Boron Cadmium Cesium Chromium Cobalt Copper Gallium Iron Lead Lithium Manganese Mercury Metallothionein Molybdenum Nickel and Nickel Compounds Platinum Potassium Selenium Silver Sodium Tellurium Thallium Tin Titanium Tungsten Uranium Vanadium Zinc. 

Many authors have reported on impurity accumulation during crystal annealing. Sulfur, in particular, has been observed to segregate on indium ), iron ), molybdenum ), silver ), titanium > > tungsten ), vanadium ), zinc ) and zirconium ), often with formation of an ordered structure, especially on iron ) and nickel ) and fixation at preferential sites ). 

T/K Sodium Strontium Tantalum Tungsten Vanadium Zinc Zirconium... 

The aminoalditol 23 was prepared by a pinacol-like homocoupling of an appropriately protected L-serine-derived aldehyde and promoted by a vanadium-zinc complex [V2Cl3(THF)6)]2[Zn2Cl6]. (See Section 2.2 for the further transformation of compound 23). 

Oxygen Potassium Sulfur Copper Iron Manganese Molybdenum Sodium Vanadium Zinc... 

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