Synthesis of Copper Nanofluids Using Ascorbic Acid Reduction Method Via One Step Solution Phase Approach

Abstract We describe an automated colorimetric method for determination of uric acid in serum or urine by use of an AutoAnalyzer II or SMA 12/60 (Technicon Corp.). The method depends on reduction of a ferric-phenanthroline complex by uric acid under acidic conditions to a ferrous-phenanthroline complex, which absorbs at 505 nm. Advantages of this method over other methods now in use are that color and concentration are linearly related (to 20 mg/100 ml); aqueous reagents are easily prepared, stable, and inexpensive; and interference from ascorbic acid has been eliminated by use of an alkaline copper-containing diluent. The analysis is also free of interference from glucose, creatinine, glutathione, salicylates and hemoglobin. Correlation with results of the Technicon phosphotungstic acid reduction method is excellent (r = .996). Correlation with results of an automated uricase method is satisfactory (r = .979). Recovery of uric acid was 101% over a wide concentration range.

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One-step synthesis of micro-sized hexagon silver sheets by the ascorbic acid reduction with the presence of H2SO4

Advanced Powder Technology ◽

10.1016/j.apt.2014.01.001 ◽

2014 ◽

Vol 25 (3) ◽

pp. 865-870 ◽

Cited By ~ 9

Author(s):

Xueyi Guo ◽

Duo Deng ◽

Qinghua Tian ◽

Cuiyan Jiao

Keyword(s):

Ascorbic Acid ◽

One Step ◽

Acid Reduction

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Controlling Synthesis of Copper Nanorods and Triangular Nanoplates

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.4.145 ◽

2009 ◽

Vol 4 ◽

pp. 145-152 ◽

Cited By ~ 1

Author(s):

Xiu Wen Zheng

Keyword(s):

Aqueous Solution ◽

Ascorbic Acid ◽

Solution Phase ◽

Simple Solution ◽

Anisotropic Growth ◽

One Dimensional ◽

Phase Approach ◽

Self Assembled ◽

Copper Nanorods

Copper nanorods and triangular nanoplates have been successfully generated by via a simple solution-phase approach by reducing CuCl2 with L-ascorbic acid (AsA) in aqueous solution in the presence of cetyltgrimethlammonium bromide (CTAB). The formation of self-assembled microstructures of CTAB molecules in aqueous solution is suggested to account for the anisotropic growth of one-dimensional copper nanorods and triangular nanoplates.

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Influence of Cu on the Improvement of Magnetic Properties and Structure of L10 FePt Nanoparticles

Nanomaterials ◽

10.3390/nano11051097 ◽

2021 ◽

Vol 11 (5) ◽

pp. 1097

Author(s):

Luran Zhang ◽

Xinchen Du ◽

Hongjie Lu ◽

Dandan Gao ◽

Huan Liu ◽

...

Keyword(s):

Magnetic Properties ◽

Annealing Temperature ◽

Reduction Method ◽

Solid Phase ◽

Average Particle Size ◽

Fept Nanoparticles ◽

Average Particle ◽

Phase Reduction ◽

Different Temperatures ◽

One Step

L10 ordered FePt and FePtCu nanoparticles (NPs) with a good dispersion were successfully fabricated by a simple, green, one-step solid-phase reduction method. Fe (acac)3, Pt (acac)2, and CuO as the precursors were dispersed in NaCl and annealed at different temperatures with an H2-containing atmosphere. As the annealing temperature increased, the chemical order parameter (S), average particle size (D), coercivity (Hc), and saturation magnetization (Ms) of FePt and FePtCu NPs increased and the size distribution range of the particles became wider. The ordered degree, D, Hc, and Ms of FePt NPs were greatly improved by adding 5% Cu. The highest S, D, Hc, and Ms were obtained when FePtCu NPs annealed at 750 °C, which were 0.91, 4.87 nm, 12,200 Oe, and 23.38 emu/g, respectively. The structure and magnetic properties of FePt and FePtCu NPs at different annealing temperatures were investigated and the formation mechanism of FePt and FePtCu NPs were discussed in detail.

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