Chemometrics & Chemical Analysis
Chemometrics means conducting calculations on chemical data measurements. This can be anything from calculating pH from measuring the activity of hydrogen ions to calculating a spectrum interpolation transformed by Fourier.
More recently, the common use of the word refers to the use of linear algebra calculation methods to make either quantitative or qualitative chemical data, primarily spectra, measurements. In order to apply these methods, almost all trained spectroscopists have the basic understanding of the concepts required. Unfortunately, like all science specialty areas, chemometrics has its own language which makes it difficult for the beginner to understand.
Chemical Analysis, the study of the chemical composition of substances and their structure. More broadly, the corpus of all techniques by which any exact chemical information is obtained may be considered. Analytical chemistry has two branches: qualitative analysis, and quantitative analysis. Qualitative analysis is the determination of those compounds and elements present in a sample of unknown material. The quantitative analysis is to determine the amount by weight of each compound or element present.