Ch 1 The Nature of Analytical Chemistry Flashcards
The determination of the mass of the analyte
Gravimetric method
The determination of the volume of a solution containing sufficient reagent to react completely with the analyte
Volumetric method
Measuring the electrical properties such as potential, current, resistance, and electric charge
Electroanalytical methods
The interaction between the electromagnetic radiation and analyte atoms, or the emission of the radiation by analytes
Spectroscopic methods
This establishes the identity of the elements and compounds in sample
Qualitative analysis
This determines the relative amount of each substances in a sample
Quantitative analysis
These are the components present in a sample, which are to be determine
Analytes
Chemistry is often called as the
Central science
Enumerate some branches of science that relates to analytical chemistry
Biology, Physics, Engineering, Geology, Agriculture, Social and Material Sciences, Medicine, etc.
A material where its constituent parts can be distinguished visually or using a microscope
Heterogeneous
Trace the flow of the steps in a quantitative analysis
Select method, Acquire sample, Process sample, Solubility of Sample (NO; Chemical dissolution), Measurable properties (NO; chemical change form), Eliminate interferences, Measure property X, Calculate results, Estimate reliability of results
The process of determining how much of a given sample is the material by its indicated name
Assay
The process of collecting a small mass of a material whose composition accurately represents the bulk of the material
Sampling
Are portions of a material of approximately the same size that are carried through an analytical procedure at the same time in the same way
Replicate samples or replicates
Is the collection of all of the components in the sample containing an analytes
Sample matrix
