10.46243/jst.2022.v2.i01.pp1-7 registered
Thermodynamic Study of the formation of transition metal ion complexes carrying medicinal drug in mixed solvent media
Resolves to https://www.jst.org.in/index.php/pub/article/view/597
Held by Longman Publishers (India) · prefix 10.46243 live · DOI address https://doi.org/10.46243/jst.2022.v2.i01.pp1-7
Registered 29 Sep 2026 via crossref · record version 2 · last change 29 Sep 2026, 11:59 PM · record sha256 638c01d6e32ff563…
Resolve ⬇ Record (JSON) ⬇ Kernel Metadata Declaration (XML) Compare with Crossref Cite (APA · BibTeX · RIS · CSL)
What the DOI identifies
JournalArticle — an article in a journal · Digital · Visual · en
Thermodynamic Study of the formation of transition metal ion complexes carrying medicinal drug in mixed solvent media (PrincipalTitle)
Published 2022-05-22
Part of Journal of Science & Technology · ISSN 2456-5660 · volume 7 · issue Special 1 · pages 1–7
Agents
- Ramesh Ware Ramesh Ware (author)
- Longman Publishers (publisher)
Identifiers DOI 10.46243/jst.2022.v2.i01.pp1-7
Abstract
Stability constant of Labetalol drug with transition metal ions Fe3+, Co2+, Ni2+, Cu2+, Zn2+ and Cd2+ using a pH metric titration technique in 20%(v/v) ethanol-water mixture at three different temperatures 300K, 310K & 320K at an ionic strength of 0.1M NaClO4 were studied. Calvin-Bjerrum method as adopted by Irving-Rossotti has been employed to determine metal-ligand stability constant logK values. The trend in the formation constants for transition metal ions follows the orderFe3+>Cu2+ > Zn2+ > Cd2+ >Ni2+ > Co2+.The thermodynamic parameters such as, Gibb’s free energy change ΔG, entropy change ΔS and enthalpy change ΔH associated with the complexation reactions were calculated.
System metadata — ISO 26324:2025, Annex B · DOI Handbook 10.1
Each element by the standard's name (Annex B: reference elements, then administrative) and the Handbook's (in grey), read off the record above.
| Element | Value | In the record |
|---|---|---|
| DOI Name DOI name | 10.46243/jst.2022.v2.i01.pp1-7 | doi |
| Referent Type referentType | Creation | referent |
| Referent Sub-Type referentSubType | JournalArticle — an article in a journal | type |
| Referent Name(s) referentName(s) | Thermodynamic Study of the formation of transition metal ion complexes carrying medicinal drug in mixed solvent media (PrincipalTitle, en) | titles |
| Basic Metadata basicMetadata | author: Ramesh Ware Ramesh Ware publisher: Longman Publishers published: 2022-05-22 part of: Journal of Science & Technology · ISSN 2456-5660 · vol. 7 · no. Special 1 · pp. 1–7 language: en form: Digital · Visual · Language | agents, dates, container, language, structural_type, modes, characters |
| Referent Identifier(s) alternateIdentifier(s) | none besides the DOI | identifiers, relations (IsSameAs) |
| Registration Authority registrationAuthorityCode | Crossref — issued by Crossref (member 25296); held here as a copy | record.source_agency (our code, ra_doi_name, for names issued here once appointed) |
| Created Date issueDate | 2024-02-16 | record.registered (when the DOI name was first registered) |
| relatedIdentifiers | none needed — the descriptive metadata is in this record | container, relations (only where the descriptive metadata lives at another identifier) |
complete Every System Metadata element is here, with the basic metadata a journal article needs.
The System Metadata Declaration (JSON) · the Kernel Metadata Declaration (XML) · what each sub-type needs
History — the ledger
Every change to this DOI, in order, as it was recorded. Entries are only ever added, never changed or removed.
| # | When | What | By | Changes |
|---|---|---|---|---|
| 1 | 29 Sep 2026, 10:00 PM | register registered at Crossref; record read from api.crossref.org | Administrator (admin) | 80 fields set · sha256 199b0ae50dda… |
| 2 | 29 Sep 2026, 11:59 PM | update record re-read from api.crossref.org | Administrator (admin) | abstract.value: container.titles.0.value: |
Machine-readable: the history as JSON, with the full record after each change.
