In this study we have reported a new, fast and extraction free spectrophotometric procedure for the assessment of caroverine in pharmaceutical raw and tablet dosage forms. In the reported visible spectrophotometric procedure tungstate in Folin-Ciocalteu phenol reagent is reduced in alkaline medium and produces the blue colored chromogen that shows Λmax at 740nm with the calibration range of 2-2...

An ultraviolet spectrophotometric and a nonaqueous volumetric method for determining terbinafine hydrochloride (TH) in pharmaceutical formulations are presented. The UV spectrophotometric procedure was developed for assay of TH in raw materials, tablets, and creams. The method was tested for linearity (0.8-2.8 micrograms/mL, r = 0.9997), recovery (102.00% for creams and 99.90% for tablets) and ...

1 . Introduction 2. What is Automation? 3. Solution-Based, Absorption Spectrophotometric Methods 3.1. Specimen Identification 3.2. Specimen Preparation 3.3. Specimen Integrity 3.4. Pipeting Specimens 3.5. Temperature Control 3.6. Absorbance Accuracy 3.7. Wavelength Accuracy 3.8. Time Control 3.9. Cuvet Control 3.10. Control of Interferences 3.10.1. Keto Acids 3.10.2. Ammonium Ions 3.10.3. Glyce...

− A spectrophotometric analyser of food (SAF) is a spectrophotometric instrument dedicated to measuring physical and/or chemical parameters characterizing a predefined class of chemical or biochemical substances which appear in food raw materials or products. It is usually composed of a spectrophotometric transducer and a digital processor. The latter is transforming raw measurement data, provi...

Carbamazepine is an anticonvulsant. It works by decreasing nerve impulses that cause seizures and pain, such as trigeminal neuralgia diabetic neuropathy. well known contemporary pharmaceutical analysis establishes robust, sensitive, economic, stability-indicating analytical procedures. The current study aimed to develop assess UV-spectrophotometric (zero order, first second area under the curve...

This document describes the Imager for Mars Pathfinder (IMP) calibration targets and outlines a procedure for their use in first-order spectrophotometric image calibration. The Mars Pathfinder mission and landing site are discussed, as are previous observations of Mars. Bidirectional reflectance theory relevant to target design and usage as well as planetary surface measurement will be develope...

The spectrophotometric and microbiological assay methods used for the determination of ampicillin levels in ampicillin/cloxacillin combinations were compared. A total of 24 samples of ampicillin/cloxacillin suspensions from 8 batches and 3 companies (B2, D and E) were assayed for their ampicillin content levels using the Spectrophotometric assay method. Infra-red (IR) Spectroscopy confirmed the...

PURPOSE An accurate and precise UV spectrophotometric method with multivariate calibration technique for the determination of aripiprazole in pharmaceutical formulations has been described. METHODS This technique is based on the use of the linear regression equations by using the relationship between concentration and absorbance at five different wavelengths. The aripiprazole shows absorption...

A method is proposed for automatic instrumentation of enzyme activity determinations which involve spectrophotometric measurements. The procedure utilizes a kinetic method to produce one instrumental reading that is proportional to enzyme concentration. The single spectrophotometric reading can be processed by analog or digital computation, using the known absorptivity constant of the reactant ...

Macrolides, one of the most commonly used class of antibiotics, are a group of drugs produced by Streptomyces species. They belong to the polyketide class of natural products. Their activity is due to the presence of a large macrolide lactone ring with deoxy sugar moieties. They are protein synthesis inhibitors and broad-spectrum antibiotics, active against both gram-positive and gram-negative ...