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Flow Injection Spectrophotometric Determination of Hydrazine in Environmental Water Samples
Flow Injection Hydrazine Spectrophotometry
2011/12/14
A simple, accurate, sensitive and selective flow injection spectrophotometric method for rapid determination of amounts of hydrazine was proposed in this paper, which was based on p-dimethylamino-benz...
Synthesis and spectrophotometric determination of acidity constants of 2,3,4,6'-tetrahydroxy-3'-sulfoazobenzene and their use in determination of aluminum
Azo dye acidity constants aluminum spectrophotometric determination
2011/4/6
A novel azo derivative, 2,3,4,6'-tetrahydroxy-3'-sulfoazobenzene (THSA), was synthesized by using pyrogallol. The acid dissociation constants, or Ka values, of THSA were determined by the UV-visible s...
Spectrophotometric Determination of Trace Phosphate Ions by Amplitude-Modulated Flow Analysis Coupled with Malachite Green Method
Spectrophotometric Determination Trace Phosphate Ions
2010/9/14
An amplitude-modulated flow analysis coupled with lock-in detection is proposed for the determination of trace phosphate. The flow rate FS of sample solution is varied in response to a periodic signal...
Collection of Indonaphthol Blue on a Membrane Filter for the Spectrophotometric Determination of Ammonia with 1-Naphthol and Dichloroisocyanurate
Collection Indonaphthol Blue Membrane Filter
2010/9/14
In order to determine ammonium ion in water samples, we propose a method based on the Berthelot reaction of ammonia with 1-naphthol and dichloroisocyanurate to form an indophenol blue derivative and c...
Spectrophotometric Determination of Cysteine with Gold Nanoparticles Stabilized with Single-stranded Oligonucleotides
Spectrophotometric Determination Cysteine Gold Nanoparticles Stabilized Single-stranded Oligonucleotides
2010/9/20
A sensitive and selective spectrophotometric detection method for cysteine has been established in this paper. The assay is based on the displacement of single-stranded oligonucleotide (ssDNA) adsorb...
Kinetic Spectrophotometric Determination of Trace Amounts of Iodide in Food Samples
Kinetic Spectrophotometric Determination Trace Amounts Iodide Food Samples
2010/9/20
A simple, selective and sensitive kinetic method has been developed for the determination of trace amounts of iodide. This method is based on a catalytic effect of iodide on the reaction between Janu...
Kinetic Spectrophotometric Determination of N-Acetyl-L-cysteine Based on a Coupled Redox-Complexation Reaction
Kinetic Spectrophotometric Determination N-Acetyl-L-cysteine Coupled Redox-Complexation Reaction
2010/9/20
A novel simple kinetic spectrophotometric method for the determination of N-acetyl-L-cysteine (NAC) has been developed and validated. The proposed method is based on a coupled redox-complexation react...
Spectrophotometric Determination of Traces of Platinum with 5-Chloro-2-hydroxythiobenzhydrazide after Extraction into Molten Naphthalene
Spectrophotometric Determination Platinum 5-Chloro-2-hydroxythiobenzhydrazide
2010/9/17
Platinum(IV) can be determined spectrophotometrically with 5-chloro-2-hydroxythiobenzhydrazide on extraction into molten naphthalene from the aqueous phase with pH 2.2 − 6.0. Beer’s law is obeye...
Micellar-mediated Extractive Spectrophotometric Determination of Hydrogen Sulfide/Sulfide through Prussian Blue Reaction: Application to Environmental Samples
Micellar-mediated Extractive Spectrophotometric Determination Hydrogen Sulfide Prussian Blue Reaction
2010/9/17
A sensitive surfactant-mediated extractive spectrophotometric method has been developed, based on the reaction of ferric iron with sulfide to form ferrous iron and its subsequent reaction with ferricy...
Spectrophotometric Determination of Labetalol and Lercanidipine in Pure Form and in Pharmaceutical Preparations Using Ferric-1,10-Phenanthroline
Ferric-1 10-Phenanthroline labetalol lercanidipine spectrophotometry
2009/10/26
A simple and sensitive spectrophotometric method was developed for the determination of labetalol HCl (LBT) and lercanidipine HCl (LER) in pure form and in dosage forms. The method was based upon oxid...
Kinetic Spectrophotometric Determination of Certain Cephalosporins in Pharmaceutical Formulations
Kinetic Spectrophotometric Determination Pharmaceutical Formulations Cephalosporins
2009/9/4
A simple, reliable, and sensitive kinetic spectrophotometric method was developed for determination of eight cephalosporin antibiotics, namely, Cefotaxime sodium, Cephapirin sodium, Cephradine dihydra...
An Improved Spectrophotometric Determination of the Activity of Ribulose 1, 5-bishosphate Carboxylase
ADP Lag time Rubisco Spectrophotometric assay
2009/7/28
Spectrophotometric assay of ribulose 1, 5-bisphosphate carboxlase, Rubisco, is a very useful method for the routine determination. However, when the freshly synthesized ribulose 1, 5-bisphosphate, RuB...
Spectrophotometric Determination of Diazepam in Pure form, Tablets and Ampoules
diazepam 2,4-dinitrobenzoic acid 3,5-dinitrobenzoic acid picric acid spectrophotometric determination
2009/4/20
The interaction of diazepam with picric acid (I), 3, 5-dinitrobenzoic acid (II) and 2, 4-dinitrobenzoic acid (III) was found to be useful for its spectrophotometric determination. the quantitation wa...
Spectrophotometric Determination of Alfuzosin HCl in Pharmaceutical Formulations with some Sulphonephthalein Dyes
Spectrophotometric Determination Alfuzosin HCl Pharmaceutical Formulations
2009/4/20
Bromocresol purple (BCP), bromophenol blue (BPB) and bromothymol blue (BTB) were used to determine alfuzosin hydrochloride either in pure form or in pharmaceutical formulations. Alfuzosin was extract...
Spectrophotometric Determination of Isoniazid and Rifampicin from Pharmaceutical Preparations and Biological Fluids
Spectrophotometric Isoniazid Rifampicin N-bromosuccinimide (NBS) Pharmaceutical preparations Biological fluids
2010/11/11
Two methods are described for the determination of the commonly used antimycobacterial drugs
such as Isoniazid and Rifampicin in their pure forms, pharmaceutical preparations and biological fluids. M...