Results 1 to 10 of about 602,860 (218)

Research on Quantitative Determination of the Cocoa Shell Content in Cocoa Powder Products by UPLC-Q-TOF MS/MS [PDF]

Zhipu Xuebao, 2022
An assay combined ultra performance liquid chromatography-quadrupole-time of flight-tandem mass spectrometry (UPLC-Q-TOF MS/MS) with the multivariate statistical analysis methods including principal component analysis and orthogonal partial least squares-
ZHANG Ya-li1, HAN Jian-xun1,2, SONG Wei1, WEI Hai-yan1, HOU Wei-jing1, FU Yu1, FU Meng2, LI Ting2   +7 more
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Electrochemical Behavior and Direct Quantitative Determination of Paclitaxel

Frontiers in Chemistry, 2022
The electrochemical behavior and direct quantitative determination of paclitaxel, a poorly soluble drug made into microemulsion, were researched by cyclic voltammetry in acetate buffer solutions (pH = 4.0) at a glassy carbon electrode.
Jiaqi Lang, Wenting Wang, You Zhou, Dongqin Guo, Rujie Shi, Nong Zhou   +5 more
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Spectrophotometric Determination of Losartan Potassium and Hydrochlorothiazide in tablets by Wavelet Transform Approach

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
A precise, rapid and simple spectrophotometric method development with continuous wavelet transform technique was described in this paper for the simultaneous determination of losartan potassium and hydrochlorothiazide in tablets.
Özgür Üstündağ, Erdal Dinç
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Development of a method for the quantitative determination of glibenclamide in tablets

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2023
Aim. To develop and validate a spectrophotometric technique for quantitative determination of glibenclamide in tablets by reaction with 2,3-dichloro-1,4-naphthoquinone. Materials and methods. In the study, the substance glibenclamide of pharmacopoeial
L. H. Leleka, S. O. Vasuik
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Study on Quality Response to Environmental Factors and Geographical Traceability of Wild Gentiana rigescens Franch

Frontiers in Plant Science, 2020
Gentiana rigescens Franch. ex Hemsl. is an important medicinal plant in China and the over exploitation of wild resources has affected its quality and clinical efficacy.
Lu Liu, Lu Liu, Zhi-tian Zuo, Fu-rong Xu, Yuan-zhong Wang   +4 more
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A New Technique to Quantitatively Determine the Periclase Content in High Magnesia Portland Cement

Frontiers in Materials, 2020
An accurate quantification of periclase in high magnesia Portland cement (HMPC) is vital to evaluate the expansive property of this cement at a later age in practice.
Zhongcheng Ma, Zhongcheng Ma, Yan Yao, Zhicheng Liu, Liying Wei, Liying Wei, Biao Wu, Zhaijun Wen, Zhaijun Wen, Chao Lu   +9 more
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The identification and the quantitative determination of loratadine by the HPLC method

Журнал органічної та фармацевтичної хімії, 2021
Aim. To develop the unified method of the HPLC analysis of loratadine, which can allow obtaining reliable and reproducible results of the studies of pharmaceuticals and biological matrices for monitoring the treatment effectiveness.
Olena O. Mamina, Volodymyr I. Kabachny, Nataliia Yu. Bondarenko, Olena V. Lozova   +3 more
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A New Method for Studying the Kinetics of the Release of Poorly Soluble API from Solid Oral Dosage Forms on the Example of Quertin®

Журнал органічної та фармацевтичної хімії, 2023
In this paper, it is proposed to consider a new method developed for studying the kinetics of release of substances that are poorly soluble in aqueous media on the example of quercetin. The study object was the drug containing plant bioactive components –
Nataliia V. Khanina, Victoriya A. Georgiyants, Vadim A. Khanin, Igor A. Zupanetz   +3 more
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Determination of Arbutin in Herbal Medicinal Products

Регуляторные 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, S. S. Prokhvatilova, E. P. Shefer, A. M. Kalinin, I. M. Morgunov, T. A. Golomazova, U. S. Legon’kova   +6 more
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Identification and quantitative determination of the flavonoids of the complex dense extract of st. john's wort herb and pot marigold flowers

Фармацевтичний журнал, 2018
Common Saint-John's wort (Hypericum perforatum) and pot marigold (Calendula officinalis) are rich in such biologically active substances (BAS) as carotene, ascorbic acid, essential oils, vitamins, tannin and resinous substances, as well as flavonoids ...
T. A. Shostak, T. G. Kalyniuk, L.V. Vronska   +2 more
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