Results 1 to 10 of about 273,868 (276)
Evaluating the Creaming of an Emulsion via Mass Spectrometry and UV–Vis Spectrophotometry [PDF]
ACS Omega, 2018 The creaming behavior of a turbid oil-in-water emulsion was observed via the processes of multiphoton ionization time-of-flight mass spectrometry (MPI-TOFMS) and ultraviolet-visible spectrophotometry (UV-vis), and the results were compared. The transmittance measurement by UV-vis showed that the turbidity of the toluene emulsion was decreased with time.
Ryo Shinoda, Tomohiro Uchimura
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Determination of Hansen solubility parameters of water-soluble proteins using UV–vis spectrophotometry [PDF]
Heliyon, 2023 Determination of solubility parameters by dissolution tests are difficult for some valuable molecules, such as proteins, where the quantities available are small, UV–vis spectroscopy can determine dissolved concentrations of even small amounts of ...
Neveen AlQasas, Daniel Johnson
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Content determination of ampicillin by Ni(ii)-mediated UV-Vis spectrophotometry. [PDF]
RSC Adv, 2022 Ampicillin could be degraded under alkaline conditions, of which the degradation products formed a complex with Ni2+in a ratio of 2 : 1 in ammonium hydroxide.
Lin Y, Cen S.
europepmc +3 more sources
Estimation of Fisetin in Strawberry (Fragaria ananassa) by UV-Vis Spectrophotometry [PDF]
Pizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2023 Flavonoids are naturally occurring plant molecules. Fisetin belongs to a class of flavonoids; it is a bioactive polyphenolic flavanol molecule found in fruits and vegetables with potential pharmacological activities. This study was designed to validate a
Subhadip Chakraborty +2 more
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Carbon nanomaterial-derived lung burden analysis using UV-Vis spectrophotometry and proteinase K digestion. [PDF]
Part Fibre Toxicol, 2020 Background The quantification of nanomaterials accumulated in various organs is crucial in studying their toxicity and toxicokinetics. However, some types of nanomaterials, including carbon nanomaterials (CNMs), are difficult to quantify in a biological ...
Lee DK +4 more
europepmc +2 more sources
Chemometrics-Assisted UV-Vis Spectrophotometry for Quality Control of Pharmaceuticals: A Review
Indonesian Journal of Chemistry, 2023 Spectroscopic method in the UV-Vis region is considered the most molecular spectrometric method for content determination of a single component. However, a lot of pharmaceutical dosage forms comprise two or more components which lead to peak overlapping.
Laela Hayu Nurani +6 more
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Journal of Spectroscopy, 2022 A fast and low-cost analytical method to determine the concentrations of carotenoids (β-carotene, lutein, and lycopene) from mixed standard solutions or from fruit extracts (kiwi fruits, tomato paste, pink grapefruit juice, kiwi-pineapple smoothie, and ...
Nawel Achir +3 more
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Indonesian Journal of Medical Laboratory Science and Technology, 2019 Ascorbic acid mostly comes from vegetables and fruits, especially fresh fruits. Vitamin C is a vitamin that can be formed by several types of plants. One of them is papaya which has various contents including vitamin C that can increase endurance, help ...
Nosy Maria Riscahyani +2 more
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Determination Of Sun Protection Factor By Uv-Vis Spectrophotometry
Health Care : Current Reviews, 2016 Background: Sunscreen products contain active ingredients that can absorb, reflect or scatter the sunlight, depending on their nature. We can evaluate the effectiveness of a sunscreen by determining the sun protection factor (SPF). This SPF should be specific for each phototype, so as to the protection against the damaging effects of UV rays may be the
Rafaelaa Nobre, Ana Paulaa Fonseca
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Borneo Journal of Pharmacy, 2018 This study aims to obtain the profile of Thin-Layer Chromatography (TLC) and Ultraviolet-Visible (UV-Vis) spectrophotometry from the ethanol extract of akar kuning stems (Arcangelisia flava) from Central Kalimantan.
Mohammad Rizki Fadhil Pratama +2 more
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