AIMC Topic: Spectrophotometry

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Simultaneous Determination of Estradiol Cypionate and Medroxyprogesterone Acetate Hormones in Injectable Suspension by UV Spectrophotometry Based on Least-Squares Support Vector Machine and Fuzzy Inference System: Comparison with HPLC.

Journal of AOAC International Jan 4, 2024
BACKGROUND: The combination of estradiol cypionate (ECA) and medroxyprogesterone acetate (MPA) is used to prevent pregnancy in women. The analysis of the ECA and MPA combination reveals a challenge due to the strong overlap of the spectra of these co...
Female Estradiol Humans Pregnancy Chromatography, High Pressure Liquid Spectrophotometry Medroxyprogesterone Acetate Support Vector Machine Least-Squares Analysis
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Simultaneous Quantitative Analysis of Salmeterol and Fluticasone in Inhalation Spray Using HPLC and a Fast Spectrophotometric Technique Combined with a Time Series Neural Network and Multivariate Calibration Methods.

Journal of AOAC International Jul 17, 2023
BACKGROUND: Chromatographic methods have been used for the simultaneous determination of salmeterol (SMT) and fluticasone (FLU). The methods take a lot of analysis time, need sample pre-treatment and large amounts of solvents, and are costly.
Chromatography, High Pressure Liquid Calibration Salmeterol Xinafoate Fluticasone Spectrophotometry Time Factors Neural Networks, Computer Least-Squares Analysis
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Spectrophotometric method for simultaneous determination of valsartan and substances from the group of statins in binary mixtures.

Acta pharmaceutica (Zagreb, Croatia) Dec 20, 2017
Applicability of derivative spectrophotometry for the determination of valsartan in the presence of a substance from the group of statins was checked. The obtained results indicate that the proposed method may be effective by using appropriate deriva...
Pravastatin Hydroxymethylglutaryl-CoA Reductase Inhibitors Spectrophotometry Indoles Atorvastatin Reproducibility of Results Fatty Acids, Monounsaturated Valsartan Sensitivity and Specificity Fluvastatin
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Analysis of Closely Related Antioxidant Nutraceuticals Using the Green Analytical Methodology of ANN and Smart Spectrophotometric Methods.

Journal of AOAC International Jan 1, 2017
Two new, simple, and specific green analytical methods are proposed: zero-crossing first-derivative and chemometric-based spectrophotometric artificial neural network (ANN). The proposed methods were used for the simultaneous estimation of two closel...
Dietary Supplements Tablets Neural Networks, Computer Antioxidants Green Chemistry Technology Spectrophotometry, Ultraviolet Vitamin E Ubiquinone Calibration Spectrophotometry
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Spectrophotometric Methods for Simultaneous Determination of Amlodipine Besylate and Atenolol in Their Tablet Dosage Form.

Guang pu xue yu guang pu fen xi = Guang pu Dec 1, 2015
Three simple, specific, accurate and precise spectrophotometric methods are developed for simultaneous determination of amlodipine besylate (AM) and atenolol (AT) in tablets. The first method is dual wavelength spectrophotometry (DW). The second meth...
Reproducibility of Results Sensitivity and Specificity Tablets Amlodipine Spectrophotometry Atenolol Calibration
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[Research on the Spectrophotometry for Determination of Flavonoids in Waste Residue of Stevia Rebaudiana].

Guang pu xue yu guang pu fen xi = Guang pu Oct 1, 2015
A spectrophotometric method for the determination of flavonoids content in Waste Residue of Stevia Rebaudiana was established by comparing the UV-Vis spectra with three spectrophotometric methods: Direct, AlCl3 and NaNO2-Al (NO3)3-NaOH method. The ef...
Rutin Chlorides Indicators and Reagents Aluminum Chloride Spectrophotometry Reproducibility of Results Flavonoids Research Temperature Aluminum Compounds Stevia
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[Research on Modeling Method for Chlorophyll Content Fine Measurement Based on Neural Network].

Guang pu xue yu guang pu fen xi = Guang pu Sep 1, 2015
Aiming at SPAD values of living plant leaf chlorophyll content affected easily by the blade thickness, water content, etc, a fine retrieval method of chlorophyll content based on multiple parameters of neural network model is presented. The SPAD valu...
Plant Leaves Light Spectrophotometry Chlorophyll Neural Networks, Computer Water
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A NEW SPECTROPHOTOMETRIC METHOD FOR THE ASSAY OF LISINOPRIL.

Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi Jan 1, 2015
AIM: A new spectrophotometric method for the assay of lisinopril using 2,4-dinitrophenol as reagent is described.
Lisinopril Mathematical Computing Angiotensin-Converting Enzyme Inhibitors Chemistry, Pharmaceutical Indicators and Reagents 2,4-Dinitrophenol Reproducibility of Results Spectrophotometry Methanol
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