Stable Isotope Quality Control Data for Ecological Analysis

A dataset supporting the preparation and validation of in-house quality control material for stable isotope analysis in ecology. It details a method involving 150 vials of air-dried soil and includes results from homogeneity tests for δ13C and δ15N isotopes. The data was authored by David J. Hawke and published in 2020.

Use Cases

• Validate laboratory analytical processes by control charting δ13C and δ15N results from quality control vials submitted with sample batches.
• Assess material homogeneity for stable isotope analysis using statistical tests like 1-way ANOVA on data from duplicate analyses of 10 vials.
• Pre-test candidate quality control material homogeneity using colorimetric analysis of bicarbonate-extractable P from soil samples.

Strengths

• Includes results from homogeneity tests for two key ecological isotopes (δ13C and δ15N).
• Describes a practical method for preparing 150 vials of a stable, biogenic quality control material.
• Provides specific statistical test results, including 1-way ANOVA P values of 0.782 and 0.125.

Limitations

• The dataset size, row count, and specific file structure are unknown.
• Data is from a single methodological study and may not represent all ecological contexts or materials.
• No sample data or column definitions are provided, limiting immediate analytical use.

Provenance

Source

David J. Hawke

Collection Method

Preparation and analysis of 150 vials of air-dried soil as an in-house quality control material.

Freshness

Last updated in June 2020.