Results 21 to 30 of about 1,987 (209)

Estimation of the Amount of Active Pharmaceutical Ingredient in Over-the-counter Available Aspirin Formulations Using Titrimetry, UV-Visible Spectrophotometry and Raman Spectroscopy [PDF]

open access: yes, 2022
Counterfeit pharmaceuticals are a serious threat to public safety worldwide. Adverse health effects including resistance to treatment and death have resulted from the consumption of such medicines. Aspirin, which is a non-steroidal anti-inflammatory drug,
Chahal, Harismranjeet K.
core   +1 more source

Uso de ICP OES e titrimetria para a determinação de cálcio, magnésio e alumínio em amostras de solos Use of ICP OES and titrimetry for calcium, magnesium and aluminum determination in soil samples

open access: yesRevista Brasileira de Ciência do Solo, 2010
O crescente interesse dos laboratórios brasileiros de análise de fertilidade de solos pela espectrometria de emissão óptica com plasma indutivamente acoplado (ICP OES) em detrimento da técnica de titrimetria deve-se à possibilidade da determinação ...
Ricardo Soares   +5 more
doaj   +1 more source

Sensitive and selective methods for the determination of cyproheptadine in tablets using N-bromosuccinimide and two dyes [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2012
One titrimetric and two spectrophotometric methods are described for the determination of cyproheptadine hydrochloride (CPH) in bulk drug and tablets employing N-bromosuccinimide (NBS) as a brominating agent and two dyes, erioglaucine (EG) and meta ...
Raghu Srinivas Madihalli   +1 more
doaj   +1 more source

Determination of the Degree of Unsaturation in Essential Oils

open access: yesРегуляторные исследования и экспертиза лекарственных средств, 2023
Being widely used, medicinal products based on vegetable oils require strict regulation and evaluation of quality attributes, determination of shelf-life periods, and monitoring of storage conditions.
A. M. Agafonov   +5 more
doaj   +1 more source

Quantitative determination of perfloxacin mesylate by residual-base neutralisation method [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
This work describes two procedures based on residual base determination for the quantification of pefloxacin mesylate (PFM) in bulk drug and in pharmaceutical products.
Basavaiah Kanakapura   +1 more
doaj   +1 more source

The birth of titrimetry: William Lewis and the analysis of American potashes [PDF]

open access: yes, 2001
A brief biog. of William Lewis is presented, focusing on his anal.
Page, Frederick G.
core   +1 more source

Development of a ‘drop-count’ method for the screening of the ethanol content in hand sanitisers using oxalic acid and potassium permanganate titrimetry

open access: yesOrapuh Journal, 2022
Introduction The demand for ethanol-based sanitisers has increased dramatically since the dawn of the COVID-19 era, making it very difficult for health regulators to ensure the quality of the products and the safety of unsuspecting consumers.
Kaneoa E. Monts’o   +5 more
doaj   +1 more source

Determination of Arbutin in Herbal Medicinal Products

open access: yesРегуляторные исследования и экспертиза лекарственных средств, 2021
Arbutin is the main active ingredient in many herbal medicinal products that have diuretic, antimicrobial, bactericidal, and antioxidant effects. Many of these products are mixtures of different herbal substances.
N. P. Antonova   +6 more
doaj   +1 more source

Development of a reference material for the composition of 0.1 m potassium dichromate solution. Certified reference material GSO 10992-2017

open access: yesСтандартные образцы, 2019
This paper describes key stages in the development and investigation of a high-precision certified reference material (CRM) for the composition of potassium dichromate solution.
A. Yu. Shimolin, A. V. Sobina
doaj   +1 more source

Sensitive and rapid titrimetric and spectrophotometric methods for the determination of stavudine in pharmaceuticals using bromate-bromide and three dyes

open access: yesAnais da Academia Brasileira de Ciências, 2008
Four sensitive and rapid methods for the determination of stavudine (STV) in bulk drug and in dosage forms were developed and optimized. In titrimetry, aqueous solution of STV was treated with a known excess of bromate-bromide in HCl medium followed by ...
Kanakapura Basavaiah   +3 more
doaj   +1 more source

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