Spectrophotometric determination of trace amounts of phenol in waste water and biological fluids

Amlathe, Sulbha; Upadhyay, Sweta; Gupta, V. K.

doi:10.1039/an9871201463

Cited by 22 publications

(9 citation statements)

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“…3) covalent immobilisation on PALL Biodyne A membranes; 4) covalent immobilisation on PALL Biodyne B membranes; 5) covalent irnmobilisation on nylon net.…”

Section: ) Physical Entrapment;mentioning

confidence: 99%

Comparison of Immobilisation Procedures for Development of an Electrochemical PPO-Based Biosensor for on Line Monitoring of a Depuration Process

et al. 1994

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“…3) covalent immobilisation on PALL Biodyne A membranes; 4) covalent immobilisation on PALL Biodyne B membranes; 5) covalent irnmobilisation on nylon net.…”

Section: ) Physical Entrapment;mentioning

confidence: 99%

Comparison of Immobilisation Procedures for Development of an Electrochemical PPO-Based Biosensor for on Line Monitoring of a Depuration Process

et al. 1994

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“…The Berthelot reaction (1859) was adapted and applied to the determination of different kinds of phenols. [23][24][25][26] Other spectrophotometric methods have been developed in recent years by using different chromogenic reactions with 3-methyl-2-benzothiazolinone hydrazone (MBTH), [27] iodine monobromide, [28] the iron (II) 1,10-phenanthroline complex, [29] or 2,4,6-trimethylaniline. [30] In a previous work, [31] the 4-aminoantipyrine (4-AAP) method was adapted for diosmin determination.…”

Section: Introductionmentioning

confidence: 99%

A Sensitive Spectrophotometric Method for Determination of Diosmin Using Sodium Nitroprusside as a Chromogenic Reagent

Moldovan

Aboul‐Enein

2011

Instrumentation Science & Technology

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A simple and sensitive method for the spectrophotometric determination of diosmin has been developed, and optimum reaction conditions along with other analytical parameters have been evaluated. Diosmin, as a phenolic compound, reacts with sodium nitroprusside and hydroxylamine hydrochloride in a basic medium to give a green-colored product. At analytical wavelength of 763 nm, Beer's law is obeyed over the concentration range 2-140 lg mL À1 of diosmin with a correlation coefficient of 0.9997. The molar absorptivity is 9671 L mol À1 cm À1 . The limits of detection (LOD) and quantification (LOQ) are 0.05 and 0.2. lg mL À1 , respectively. The method has been successfully applied to the determination of diosmin in a commercial pharmaceutical preparation. The results were compared favorably with those obtained by the 4-aminoantipyrine method.

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“…Enols have also been determined with sodium nitroprusside by reaction with hydroxylamine and in the presence of ammonia and N-chlorosuccinimide (Amlathe et al 1987).…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric method for estimation of aliphatic primary amines in biological samples

Varma

Gaikwad

2007

World J Microbiol Biotechnol

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A method based on Rimini test for aliphatic amines was studied and developed for quantitative estimation of aliphatic primary amines. The method involves action of the amine with acetone to form schiff base which complexes with sodium nitroprusside to give violet colour. The absorption maximum in the visible range of the spectrum, for the reaction mixture was found to be 550 nm. The pH (8-11) and reaction time scan for the assay were optimized. A linear relation of concentration (0.2-3 mg/mL) of amine against absorbance at 550 nm was established. Interference due to other reaction components was negligible (±0.02 mg/mL) as compared to the sample in buffer. 1, 3-dimethyl butylamine was used as the model amine and the method was applied to other amines; it was observed that when electron-withdrawing substituents are present in the molecule the reaction is retarded, as the incubation time was longer. This method is useful for estimation of aliphatic primary amine in biological samples.

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Spectrophotometric determination of trace amounts of phenol in waste water and biological fluids

Cited by 22 publications

References 0 publications

Comparison of Immobilisation Procedures for Development of an Electrochemical PPO-Based Biosensor for on Line Monitoring of a Depuration Process

Comparison of Immobilisation Procedures for Development of an Electrochemical PPO-Based Biosensor for on Line Monitoring of a Depuration Process

A Sensitive Spectrophotometric Method for Determination of Diosmin Using Sodium Nitroprusside as a Chromogenic Reagent

Spectrophotometric method for estimation of aliphatic primary amines in biological samples

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