The effect of magnetic field on the stability of (18-crown-6) complexes with potassium ion.

PAPER pubmed Talanta 2004 Other Effect: harm Evidence: Insufficient

Read original paper → DOI: 10.1016/j.talanta.2004.02.039 PMID: 18969640 Evidence Lab

Abstract

Macrocyclic polyethers are ligands with selectivity for metal ions. In order to understand the interactions between ligand, ion and solvent we resorting to study of magnetic field effect on ion-macrocyclic complexes. Therefore, we studied the complexation between 18-crown-6 and potassium ion in water through the conductometry technique (in 25+0.05 degrees C) by a nonlinear least-square program (Genplot) under magnetic field. We observed that stability constants of complexes in the presence of the magnetic field, were decreased. Like-wise, we observed that, magnetic field influenced on ion, solvent and ligand one by one.

AI evidence extraction

At a glance

Study type

Other

Effect direction

harm

Population

—

Sample size

—

Exposure

magnetic field

Evidence strength

Insufficient

Confidence: 66% · Peer-reviewed: yes

Main findings

In conductometric measurements at 25±0.05 °C, the stability constants for 18-crown-6 complexes with potassium ion in water decreased in the presence of a magnetic field. The authors also report that the magnetic field influenced the ion, solvent, and ligand.

Outcomes measured

Stability constants of 18-crown-6–potassium complexes in water (conductometry)

Limitations

Magnetic field characteristics (e.g., strength, frequency/type) not reported in the abstract
No sample size or replication details provided in the abstract
Study context is chemical complexation in solution; no biological/health outcomes reported

View raw extracted JSON

{
    "study_type": "other",
    "exposure": {
        "band": null,
        "source": "magnetic field",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": null
    },
    "population": null,
    "sample_size": null,
    "outcomes": [
        "Stability constants of 18-crown-6–potassium complexes in water (conductometry)"
    ],
    "main_findings": "In conductometric measurements at 25±0.05 °C, the stability constants for 18-crown-6 complexes with potassium ion in water decreased in the presence of a magnetic field. The authors also report that the magnetic field influenced the ion, solvent, and ligand.",
    "effect_direction": "harm",
    "limitations": [
        "Magnetic field characteristics (e.g., strength, frequency/type) not reported in the abstract",
        "No sample size or replication details provided in the abstract",
        "Study context is chemical complexation in solution; no biological/health outcomes reported"
    ],
    "evidence_strength": "insufficient",
    "confidence": 0.66000000000000003108624468950438313186168670654296875,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "magnetic field",
        "18-crown-6",
        "potassium ion",
        "complexation",
        "stability constant",
        "conductometry",
        "water"
    ],
    "suggested_hubs": []
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

Comments

No comments yet.