Size Reduced Iron Nitroprusside Particles: an Electrochemical Mediator for the Quantification of Peroxodisulfate and Nitrite

Devaramani, Samrat; Ramakrishnappa, T.; Lawrence, Nathan S.

doi:10.5935/0103-5053.20150005

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…The samples were collected in fish farm and characterized by the content of total iron, total copper and total aluminum by X-Ray Fluorescence, S2 Picofox, with Mo K radiation, 50 kV voltage and current of 602 mA. These metals could interact with the nitroprusside and could interfere with the analytical signal [27][28][29]. The fishpond water conductivity was measured by a LUTRON CD-4303 conductivity meter (2% accuracy of the full scale), calibrated with standard KCl solution (± 0.5%); the pH was measured by a LABMETER PHS-3B pHmeter (resolution ± 0.01) and combined glass electrode, calibrated with buffer solutions pH 7.0 (± 0.05) and pH 4.0 (± 0.02); and the turbidity was measured using a Tecnopon TB1000 digital turbidimeter (resolution 0.8) calibrated with standards between 0.1 and 1,000 NTU.…”

Section: Methodsmentioning

confidence: 99%

Development of a Spectrophotometric Method for the Determination of 17α-methyltestosterone

Lindino¹,

Savaris²,

Alberton³

et al. 2019

Br J Anal Chem

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Contamination of waters by 17α-methyltestosterone (MT) has increased in recent years due to the increase in the fish farms production. This work describes the determination of the MT hormone by a new spectrophotometric method in the visible region, after the reaction with potassium nitroprusside with the generation of a compound having maximum absorbance at 400 nm. To understand the process of the compound formation, geometry optimizations were performed at MPW1PW91/6-311+G (2d,2p) level of theory and the calculations showing that the NO group of nitroprusside bonds to the carbon with double bond adjacent to the carbonyl of 17α-methyltestosterone. In this method, MT was determined at the concentration between 8.0 x 10 -8 and 2.7 x 10 -7 mol L -1 with a coefficient of determination of 0.9946. The relative standard deviation for the repeatability in nine replicates was 2.37% for [MT] = 1.50 x 10 -7 mol L -1 . Limit of detection (LOD) was calculated as 1.75 x 10 -8 mol L -1 and the limit of quantification (LOQ) was established as the lowest value of the linear concentration range (8.0 x 10 -8 mol L -1 ). This spectrophotometric method was suitable according to the analysis of analytical figures of merit, it has low cost and can be applied to samples of fish farm waters with portable spectrophotometers for in situ measurements, increasing the environmental control with rapid analysis.

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Section: Methodsmentioning

confidence: 99%

Development of a Spectrophotometric Method for the Determination of 17α-methyltestosterone

Lindino¹,

Savaris²,

Alberton³

et al. 2019

Br J Anal Chem

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“…3,4 Although they have been well characterized for decades, 2,5−7 only recently have these porous transition-metal nitroprussides and their analogues, Prussian blue materials, been found to have potential for usage in industrial applications. These range from gas storage and separations 8−12 to magnetism, 13 electrochemistry, 14 photomagnetism, 15 medical technologies, 16 and adsorption for radioactive elements (e.g., cesium 17 ). Their microporous, crystalline framework structure is formed by coordination of transition metals (M = Co, Ni, etc.)…”

Section: ■ Introductionmentioning

confidence: 99%

“…Pentacyanonitrosylferrates, commonly known as nitroprussides (NPs), are historical vasodilators with a long and documented history. , They were traditionally used in medication for lowering blood pressure in certain types of heart failure and during surgery to decrease bleeding. , Although they have been well characterized for decades, ,− only recently have these porous transition-metal nitroprussides and their analogues, Prussian blue materials, been found to have potential for usage in industrial applications. These range from gas storage and separations − to magnetism, electrochemistry, photomagnetism, medical technologies, and adsorption for radioactive elements (e.g., cesium). Their microporous, crystalline framework structure is formed by coordination of transition metals (M = Co, Ni, etc.)…”

Section: Introductionmentioning

confidence: 99%

Transition-Metal Nitroprussides Examined for Water Harvesting and Sorption Cooling

et al. 2020

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Transition-metal pentacyanonitrosylferrates, commonly known as nitroprussides, have a long and documented history. Here, we synthesize cobalt and nickel nitroprussides (NPs) in order to probe their use as sorbents for water and fluorocarbon uptake for potential water harvesting and cooling applications. These NPs show stable and reversible equilibrium sorption isotherms at room temperature with peak uptake values of ∼40 wt % for H 2 O and ∼30 wt % for fluorocarbon R134a. At water harvesting conditions, working capacities of ∼19 wt % were obtained for NPs. At sorption cooling conditions, the working capacities favored nickel NP. Given the advantages of an easy, inexpensive, and scalable synthesis, this study demonstrates the potential for using nitroprussides for future water harvesting and adsorption cooling systems.

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Size Reduced Iron Nitroprusside Particles: an Electrochemical Mediator for the Quantification of Peroxodisulfate and Nitrite

Cited by 2 publications

References 2 publications

Development of a Spectrophotometric Method for the Determination of 17α-methyltestosterone

Development of a Spectrophotometric Method for the Determination of 17α-methyltestosterone

Transition-Metal Nitroprussides Examined for Water Harvesting and Sorption Cooling

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