4:["$","article",null,{"className":"article","children":[["$","header",null,{"className":"article-hero","children":["$","div",null,{"className":"article-hero-inner container","children":[["$","div",null,{"className":"article-hero-content","children":[["$","h1",null,{"className":"article-title","children":"Speciation: iAs and MeHg"}],["$","p",null,{"className":"article-description","children":"Testing primer: speciation: ias and mehg."}],["$","div",null,{"className":"article-meta","children":["$","p",null,{"className":"muted","children":["Updated ","2026-01-10"]}]}],"$undefined"]}],["$","div",null,{"className":"article-hero-accent","aria-hidden":true,"children":false}]]}]}],["$","div",null,{"className":"article-body container container-narrow","children":["$","div",null,{"className":"article-content","dangerouslySetInnerHTML":{"__html":"

Key concepts

This primer explains speciation: ias and mehg with plain-language definitions for cross-functional teams.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Term	Operational meaning
Placeholder term	Placeholder explanation for method users.
Placeholder term 2	How this affects interpretation decisions.

Practical interpretation

Use these definitions when reviewing lab reports, method validations, and limit-setting discussions.

References

Placeholder reference.

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