KnowraQualitative analysisQualitative analysisChemical analysis that identifies which substances or ions are present without measuring their amounts.BriefConnectChemical test: A procedure that uses a chemical reaction or property to detect or characterize a substance. Qualitative analysis identifies substances through tests that produce recognizable outcomes.Chemical species: A distinct chemical entity, such as an atom, molecule, ion, or molecular fragment. Qualitative analysis seeks to identify chemical species in a sample.Classical qualitative inorganic analysis: A systematic scheme for identifying inorganic ions through selective reactions and separations. It organizes qualitative tests into a sequence for distinguishing cations and anions.Quantitative chemical analysis: The measurement of the amount or concentration of chemical constituents in a sample. A qualitative finding establishes presence, while quantitative analysis supplies a measured amount.Precipitation reaction: A reaction in which dissolved substances form an insoluble solid. A precipitate’s formation or color can indicate particular ions.Analyte: The substance or chemical constituent being measured or identified in an analysis. The analyte is the target whose presence qualitative analysis investigates.Cation analysis: The identification of positively charged ions in a sample. Selective reactions can distinguish cations by precipitates, colors, or complex formation.False positive: A test result that indicates a condition or substance is present when it is not. Interfering substances can trigger a qualitative test’s expected signal.Flame test: A method for identifying certain metal ions by the characteristic colors they produce in a flame. Distinct flame colors provide a visible clue to some metal ions.Mixture: A physical combination of substances that retain their chemical identities. Many qualitative analyses must distinguish components within a mixture.Show all 21Linked from 3 pagesAnalytical chemistryBroader topic: It addresses identification, one of analytical chemistry's two central aims.Martin Heinrich KlaprothRelated: Klaproth paired identification of mineral constituents with quantitative measurement of their proportions.Elemental analysisBroader topic: It is the identification-only part of elemental analysis.