Zobrazeno 1 - 10
of 891
pro vyhledávání: '"Pre-column Derivatization"'
Autor:
P. A. Kalmykov, T. P. Kustova, S. O. Kustov, P. S. Shestakovskaya, T. R. Azmetov, A. A. Kalmykova
Publikováno v:
Тонкие химические технологии, Vol 19, Iss 2, Pp 127-138 (2024)
Objectives. To develop a new method to determine amino acids in drugs by means of reverse-phase high-performance chromatography (RP HPLC) with pre-column derivatization using phenyl isothiocyanate (PITC) and one-pot sample preparation.Methods. The in
Externí odkaz:
https://doaj.org/article/574377aa33e74b82917ddb7407606c1b
Autor:
Georgios Kamaris, Maria Tsami, Georgiana-Roxana Lotca, Sofia Almpani, Catherine K. Markopoulou
Publikováno v:
Molecules, Vol 29, Iss 23, p 5535 (2024)
In recent years, the detection of nitrosamine precursors has become an important issue for regulatory authorities such as the European Medicines Agency (EMA) and the Food and Drug Administration (FDA). The present study provides a pre-column derivati
Externí odkaz:
https://doaj.org/article/6b94e94b57b3482b8ed7082bf0fd2fb9
Publikováno v:
Journal of Chromatography Open, Vol 5, Iss , Pp 100141- (2024)
Propylene oxide (PO) is an important chemical commodity and a chiral building block to prepare pharmaceutical compounds. It is crucial to develop a sensitive and robust chiral method that can be used to assess the enantiomeric purity of PO and safegu
Externí odkaz:
https://doaj.org/article/7af2e66860b24257aebef3a894228caa
Publikováno v:
Heliyon, Vol 10, Iss 9, Pp e29738- (2024)
Alginate is the most abundant polysaccharide compound in brown algae, which is widely used in various fields. At present, the determination of the content of alginate is mostly carried out using sulfuric acid and trifluoroacetic acid hydrolysis follo
Externí odkaz:
https://doaj.org/article/37189ec2bbfa490581f7e8591c25b5a7
Publikováno v:
Shipin gongye ke-ji, Vol 44, Iss 24, Pp 279-285 (2023)
To establish a methodology for detecting the amino acid content in rice peptides, the research employed the pre-column derivative phenyl isothiocyanate (PITC) for realizing simultaneous, rapid, and effective analysis of 16 amino acids, including aspa
Externí odkaz:
https://doaj.org/article/df4277f063e949c08643ee3a3dd436d1
Publikováno v:
In Heliyon 15 May 2024 10(9)
Publikováno v:
Shipin gongye ke-ji, Vol 44, Iss 14, Pp 264-271 (2023)
A method was established to determine 22 free amino acids in food for special medical purposes by ultra-performance liquid chromatography. After extraction with sulfosalicylic acid and derivation with 2,4-dinitrofluorobenzene (DNFB), the samples were
Externí odkaz:
https://doaj.org/article/3fb6c7fe18b54fbe9c6a8cea590f43b1
Autor:
Limin Hou, Zongpei Jiang, Minqi Ye, Xueyan Sun, Kexin Liu, Yifan Zhu, Xiaoyu Wang, Liangzhu Chen, Ruiheng Gu, Binghu Fang
Publikováno v:
Arabian Journal of Chemistry, Vol 17, Iss 1, Pp 105439- (2024)
The excessive accumulation of antibiotic residue in animal-derived foods pose a threat to our heath. Therefore, it is necessary to establish a rapid, simple, effective, safe and highly sensitive lincomycin (LIN) residues detection method by high-perf
Externí odkaz:
https://doaj.org/article/efa77bc7281d4c8982b348060050e618
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