A substance in appreciable amount which, when associated with a trace of a specified substance, will carry the trace with it through a chemical or physical process.
See also: support (of a catalyst)
Source: PAC, 1982,
54, 1533. (
Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1537 [
Terms] [
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See also: PAC, 1976,
46, 71. (
Manual of Symbols and Terminology for Physicochemical Quantities and Units - Appendix II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II: Heterogeneous Catalysis) on page 79 [
Terms] [
Paper]