Strandardization of grown and velvet antlers from reindeer. Part I. Quantitative determination of ninhydrin-active substances in powdered reindeer antlers

1997 ◽  
Vol 31 (4) ◽  
pp. 215-217
Author(s):  
V. P. Pakhomov ◽  
T. V. Maksimova ◽  
I. N. Nikulina ◽  
V. V. Tsygankov ◽  
L. V. Khromova
Keyword(s):  
Quantitative Determination ◽  
Active Substances

scholarly journals Quantitative Determination of Vinpocetine in Dietary Supplements

2016 ◽  
Vol 11 (5) ◽  
pp. 1934578X1601100
Author(s):  
John M. T. French ◽  
Matthew D. King ◽  
Owen M. McDougal
Keyword(s):  
United States ◽  
Quantitative Determination ◽  
Dietary Supplements ◽  
Nootropic Drugs ◽  
Regulatory Policies ◽  
Short And Long Term ◽  
Pharmacologically Active ◽  
Active Substances

Current United States regulatory policies allow for the addition of pharmacologically active substances in dietary supplements if derived from a botanical source. The inclusion of certain nootropic drugs, such as vinpocetine, in dietary supplements has recently come under scrutiny due to the lack of defined dosage parameters and yet unproven short- and long-term benefits and risks to human health. This study quantified the concentration of vinpocetine in several commercially available dietary supplements and found that a highly variable range of 0.6–5.1 mg/serving was present across the tested products, with most products providing no specification of vinpocetine concentrations.

scholarly journals Development of methods for standardization of the active substance, namely the model mixture based on decamethoxine and thiotriazoline

2021 ◽  
Vol 23 (5) ◽  
pp. 703-707
Author(s):  
L. I. Kucherenko ◽  
O. O. Chonka ◽  
O. O. Portna
Keyword(s):  
Hydrochloric Acid ◽  
Polyvinyl Alcohol ◽  
Quantitative Determination ◽  
Active Substance ◽  
Model Mixture ◽  
State Enterprise ◽  
Chemical Reagents ◽  
The Creation ◽  
Active Substances

Today, the important problem is the creation of new decamethoxine and thiotriazoline based drugs for the treatment of stomatitis. The aim of the work is to develop a method for quantitative determination of decamethoxine and thiotriazoline in the model mixture (1:25) by spectrophotometry. Materials and methods. Series 6 model mixtures were made at the ratio of decamethoxine and thiotriazoline 1:25. We used certified substances: thiotriazoline series GTT 3460911 (manufacturer: State Enterprise Chemical Reagents Plant, Kharkiv), decamethoxine series № 010915 (manufacturer: LLC “PHARMCHIM”). Optizen POP spectrophotometer, polyvinyl alcohol, hydrochloric acid, and eosin were used. Results. A method for quantitative determination of decamethoxine and thiotriazoline in MS was developed. It was established that the content of active substances in MS is thiotriazoline from 0.5021 to 0.5096, decamethoxine from 0.0207 to 0.0211. Conclusions. A method for quantitative determination of decamethoxine and thiotriazoline in MS has been developed. The method of quantitative determination of decamethoxine and thiotriazoline in MS is reproducible.

scholarly journals Flavonoid’s Content Determination in Irradiated Samples via Spectrophotometric Analysis

2019 ◽  
Vol 5 (10) ◽  
pp. 32-39 ◽  
Author(s):  
A. Sarukhanov ◽  
A. Morozova ◽  
N. Vasilyeva ◽  
D. Krylenkin
Keyword(s):  
Quantitative Determination ◽  
Raw Materials ◽  
General Information ◽  
Spectrophotometric Analysis ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Qualitative And Quantitative ◽  
Content Determination ◽  
Active Substances

General information about biologically active substances flavonoids is concisely presented. The need for the quantitative determination of its content in products and the influence of product processing on flavonoid’s content is justified. Methods of qualitative and quantitative determination of flavonoids content in various products, medications and raw materials were studied. Based on this study the method of quantitative determination of flavonoid’s in samples of irradiated coriander is compiled and tested. Further ways to improve and adjust the compiled method for flavonoid’s content determination in irradiated samples via spectrophotometric analysis is considered.

DEVELOPMENT OF THE COMPOSITION AND STANDARTIZATION OF THE COLLECTION FOR THE PREVENTION OF INFLAMMATORY PERIODONTAL DISEASES

2021 ◽  
pp. 73-79
Author(s):  
Groznov A.A. ◽  
Kachulin V.A. ◽  
Nesterova O.V.
Keyword(s):  
Essential Oil ◽  
Medicinal Plant ◽  
Quantitative Determination ◽  
Periodontal Diseases ◽  
Antimicrobial Effect ◽  
Biologically Active ◽  
Extractive Substances ◽  
Definition Of ◽  
Active Substances

Taking into account the literature data, as well as the research conducted by the authors, the composition of the collection for the prevention of inflammatory periodontal diseases has been developed, which includes medicinal plant raw materials:medicinal pimenta fruits, medicinal sage leaves, yarrow grass, badan rhizomes in a ratio of 1:1:1: 1 by weight. The quantitative ratio of the components is determined in accordance with the results of the evaluation of the antimicrobial effect of the extract from the proposed collection. To confirm the composition of biologically active substances of the collection, pharmacopoeial qualitative reactions to flavonoids and tannins, as well as the TLC method, which allows identifying substances of a polyphenolic nature, are proposed. The quantitative determination of extractive substances, essential oil, tannins, and flavonoids in the studied collection was carried out and the norms of their content were proposed. The definition of commodity characteristics is carried out.

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