Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Petro Rydchuk"'
Autor:
Oleksandr Tymoshuk, Lesia Oleksiv, Orest Fedyshyn, Petro Rydchuk, Vasyl Matiychuk, Taras Chaban
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 3, Pp 970-976 (2020)
The paper presents a new azolidone derivative – 5-[2-(4-hydroxyphenyl)hydrazineylidene]-4-iminothiazolidin-2-one (HPIT) studies and its interaction results with iridium(IV) ions. The Ir(IV) with this reagent in the pH = 5.0 without heating forms a
Externí odkaz:
https://doaj.org/article/797d7e0b2e714970a5383acecc443483
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 1, Pp 23-35 (2020)
A rapid, simple and sensitive spectrophotometric method for the determination of amoxicillin (AM) is described. The method is based on the previous sulphanilamide (SA) and sulphathiazole (STZ) diazotization in the medium of 0.6–0.7 M hydrochloric a
Externí odkaz:
https://doaj.org/article/1d0bd541b75d47a3b6851cb8a86d0ce7
Autor:
Mariana Rydchuk, Kateryna Plotnikova, Solomiya Pysarevska, Sophia Ivakh, S. Plotycya, Zvenyslava Zasadna, Petro Rydchuk, Liliya Dubenska, Dmytro Yanovych
Publikováno v:
Journal of Food Measurement and Characterization. 16:891-900
The method of voltammetric determination of nitroimidazoles in honey is developed. This method is based on the reduction of nitroimidazoles nitro group on the mercury drop indicator electrode. The obtained values of LODs for nitroimidazoles are as fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49dae77ca2f3eb64019a874f3c42a460
https://doi.org/10.1007/s11694-021-01214-z
https://doi.org/10.1007/s11694-021-01214-z
Publikováno v:
Chemistry & Chemical Technology. 15:324-329
The interaction of Pd(II) with 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one (HITO) was investigated over the pH range of 1.0–10.0. Optimal conditions for the voltammetric determination of Pd(II) were established. A new voltammetric method of Pd(II)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f3952cf5490f8e3ebe20c9554b073d
https://doi.org/10.23939/chcht15.03.324
https://doi.org/10.23939/chcht15.03.324
Autor:
T. I. Chaban, Orest Fedyshyn, Oleksandr Tymoshuk, Vasyl S. Matiychuk, Lesia Oleksiv, Petro Rydchuk
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 3, Pp 970-976 (2020)
The paper presents a new azolidone derivative – 5-[2-(4-hydroxyphenyl)hydrazineylidene]-4-iminothiazolidin-2-one (HPIT) studies and its interaction results with iridium(IV) ions. The Ir(IV) with this reagent in the pH = 5.0 without heating forms a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23f629c8c203f895f6e0fb17fa28cc81
https://journals.matheo.si/index.php/ACSi/article/view/6046
https://journals.matheo.si/index.php/ACSi/article/view/6046
Autor:
Petro Rydchuk, Svitlana Tymoshuk, Mefodiya St., Lviv, Ukraine, T. I. Chaban, Lesia Oleksiv, Vasyl S. Matiychuk, Oleksandr Tymoshuk
Publikováno v:
Chemistry and Chemical Technology. 14:139-145
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee71b69e25300bc30a78f9a0f7062a29
https://doi.org/10.23939/chcht14.02.139
https://doi.org/10.23939/chcht14.02.139
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 1, Pp 23-35 (2020)
A rapid, simple and sensitive spectrophotometric method for the determination of amoxicillin (AM) is described. The method is based on the previous sulphanilamide (SA) and sulphathiazole (STZ) diazotization in the medium of 0.6–0.7 M hydrochloric a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a0070c4bdbf1a323bacdbaa29a58c85
https://doi.org/10.17344/acsi.2019.5041
https://doi.org/10.17344/acsi.2019.5041
Publikováno v:
Methods and Objects of Chemical Analysis. 15:5-20
Color is one of the key ingredients for increasing the appetizing of food, so food dyes have become firmly established in food production technologies. However, with the acquisition of toxicity data of synthetic food dyes (SFD), there were restrictio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5455a2cda4a62adba1bc2d478f5265a0
https://doi.org/10.17721/moca.2020.5-20
https://doi.org/10.17721/moca.2020.5-20
Publikováno v:
Materials Science. 55:455-459
We study the interaction of 4-methoxy-1-(5-benzylthiazol-2-yl)azo-naphthalene-2-ol with palladium (II) ions. The conditions required for the formation of a complex and for getting the optimal fractions of its components are established. We propose a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91893d0dee02f07fa112ff0203ebacc7
https://doi.org/10.1007/s11003-019-00325-9
https://doi.org/10.1007/s11003-019-00325-9
Publikováno v:
Methods and Objects of Chemical Analysis. 14:130-139
5-Hydroxyimino-4-imino-1,3-thiazolidine-2-one has been suggested as a new organic reagent for the voltammetric determination of platinum. The optimal conditions of Pt(IV) voltammetric determination using 5-hydroxyimino-4- imino-1,3-thiazolidine-2-one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40d99c5035bee82aa04713fb3f7d8d45
https://doi.org/10.17721/moca.2019.130-139
https://doi.org/10.17721/moca.2019.130-139