Copper-Binding Organic Ligands in Oceanic Regions Analyzed by Tims-TOF MS

Molecular composition data for copper(II)-binding organic ligands isolated from distinct oceanic regions using immobilized metal affinity chromatography and solid-phase extraction. The dataset, published by Louis Criqui on figshare in 2026, compares high-nutrient, low-chlorophyll regions with non-HNLC areas, identifying compounds like carbazomycin A. It includes metrics such as mass-to-charge values, weighted CCS, and H/C ratios to assess ligand aromaticity and origin.

Use Cases

• Compare molecular composition of copper-binding ligands between HNLC and non-HNLC ocean regions based on described regional variability.
• Investigate relationships between ion mobility signatures and molecular class based on described CCS–m/z correlations.
• Identify allochthonous versus autochthonous organic ligand sources based on described compound classes like CAS-like and lignin-like compounds.
• Study the environmental factors influencing copper bioavailability and toxicity based on the described ligand pool differences.

Strengths

• Includes data from distinct oceanic regions: the northeastern Pacific, southern Atlantic, and Arctic Oceans.
• Identifies specific compounds like carbazomycin A, marking its first reported detection in marine waters.
• Reports quantitative findings such as HNLC regions sharing over 25% more compounds than the non-HNLC Arctic Ocean.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The primary data file is a PDF (422.4 KB), which may require extraction and formatting for computational analysis.

Provenance

Source

Louis Criqui via figshare.

Collection Method

Ligands isolated via immobilized metal affinity chromatography (IMAC) and solid-phase extraction (SPE-PPL), detected by trapped ion mobility spectrometry time-of-flight mass spectrometry (Tims-TOF).

Freshness

Last updated 2026-03-17 15:31:08; freshness should be verified.

Geography

Northeastern Pacific Ocean, southern Atlantic Ocean, and Arctic Ocean.