a new simple arid rapid catalytic kinetic method for determination of trace amounts of chromium (110 isdescribed. the method is based on the catalytic effect of chromium (iii) on the reduction of methylene blue byascorbic acid in acidic media. the reaction monitored smectrophotomenically by measuring the decrease ofabsorbance at 664 nm at 25 c. the fixed-time method was used for the first 300 s...

Abstract The spectrophotometric molybdenum blue method for phosphorus determination was adapted to a multiwell plate format. sensitive and allowed the simultaneous of in many samples. It cheap eco-friendly due application small volumes reagents and, therefore, it meets requirements “green” or sustainable chemistry. method’s limit detection (LOD) is 0.37 μg/mL its quantification (LOQ) 1.13 μg/mL...

Background: Technetium-99m radioisotope is the backbone of any nuclear medicine institute. This radioisotope is acquired by the elution of Molybdenum-99/Technetium-99m generator which emits 141 keV gamma ray and having 6.04 hour half-life. Occasionally the contents of Molybdenum-99 may mix up with elute, which may affect image quality and patients may receive higher doses than recommended. This...

The assimilatory nitrate reductase from Chlorella contains flavin, heme, and molybdenum as prosthetic groups. The molybdenum in assimilatory nitrate reductase is associated with a pterin moiety (molybdopterin) as evidenced by the ability of the enzyme to donate active molybdenum cofactor to the Neurospora nitrate reductase mutant nit-1 and by the oxidative conversion of the pterin to two well c...

The new carboxylato-dinitrosyl-molybdenum complexes o f the formula: [M o(NO )2( 0 2CMe)2] • MeOH, N a2[M o(NO)2( 0 2CMe)4] and M o(N O )2( 0 2CPh)2 have been synthesized. Their structure was resolved on the basis o f spectroscopic investigations ('H N M R , IR, U V -V IS ). Catalytic activity o f these complexes in olefin metathesis reaction was also examined. The electronic structure o f dini...

Khatunabad area is situated geologically in UrmiehDokhtar magmatic belt in NW of Iran. In this research, studied area has been investigated in order to recognize the potential copper and molybdenum-bearing target areas. The survey layers include the lithologic units, alteration, geochemical result, tectonics and copper and molybdenum occurrence. As an accurate decision can have a considerable e...