Analytical chemistry

study of the separation, identification, and quantification of the chemical components of materials

thumb|A burette and [[Erlenmeyer flask (conical flask) being used for an acid–base titration.]] Titration (also known as titrimetry and volumetric analysis) is a common laboratory method of quantitative chemical analysis to determine the concentration of an identified analyte (a substance to be analyzed). A reagent, termed the titrant or titrator, is prepared as a standard solution of known concentration and volume. The titrant reacts with a solution of analyte (which may also be termed the titrand) to determine the analyte's concentration. The volume of titrant that reacted with the analyte i

state in which both reactants and products are present in concentrations which have no further tendency to change with time.There are no net changes in the concentrations of the reactant(s) and product(s). Such a state is known as dynamic equilibrium

thumb| A modern crucible used in the production of silicon ingots via the [[Czochralski process|400x400px]] thumb|Smaller clay graphite crucibles for copper alloy melting|300x300px A crucible is a container in which metals or other substances may be melted or subjected to very high temperatures. Although crucibles have historically tended to be made out of clay, they can be made from any material that withstands temperatures high enough to melt or otherwise alter its contents.

formula which tells relative ratio of different atoms in a compound

frequencies of light emitted by atoms or chemical compounds

equilibrium constant as a measure of acid strength in solution

right|thumb|300px|Diagram of simple filtration: oversize particles in the feed cannot pass through the lattice structure of the filter, while fluid and small particles pass through, becoming filtrate.

method to achieve any phenomenon that converts a mixture of chemical substance into two or more distinct product mixtures, which may be referred to as mixture, at least one of which is enriched in one or more of the initial mixture's constituents

Method to identify chemical elements by their absorption of radiation

chemical separation of a substance from a matrix

exchange of ions between two electrolytes or between an electrolyte solution and a complex

chemical element whose concentration (or other measure of amount) is very low

thumb|Decanting a liquid from a solid

quantitative determination of a chemical species based on its mass

laboratory glassware

empirical thermodynamic law that the molar heat capacities of many solids are approximately the same at 3𝑅≈25 J/(K·mol)

piece of laboratory apparatus

concept in chemistry that has different, but similar, meanings if referred to a single pure substance or a mixture

quantification of the electrical interactions between ions in solution

In analytical chemistry, argentometry is a type of titration involving the silver(I) ion. Typically, it is used to determine the amount of chloride present in a sample. The sample solution is titrated against a solution of silver nitrate of known concentration. Chloride ions react with silver(I) ions to give the insoluble silver chloride:

semi-permeable paper barrier

spectroscopic techniques that measure the absorption of radiation

analysis which determines the quantity or number of something

Chemometrics is the science of extracting information from chemical systems by data-driven means. Chemometrics is inherently interdisciplinary, using methods frequently employed in core data-analytic disciplines such as multivariate statistics, applied mathematics, and computer science, in order to address problems in chemistry, biochemistry, medicine, biology and chemical engineering. In this way, it mirrors other interdisciplinary fields, such as psychometrics and econometrics.

plasma formed by the passage of electric current through a gas

An analyte, component (in clinical chemistry), titrand (in titrations), or chemical species is a substance or chemical constituent that is of interest in an analytical procedure. The remainder of the sample is called the matrix. The procedure of analysis measures the analyte's chemical or physical properties, thus establishing its identity or concentration in the sample.

method of thermal analysis in which the mass of a sample is measured over time as the temperature changes

Method using radiation to identify chemical elements in a sample.

mass of iodine in grams that is consumed by 100 grams of a chemical substance

Solution with a precisely known concentration of something

set of pseudo units to describe small values of miscellaneous dimensionless quantities

A chemoreceptor, also known as chemosensor, is a specialized sensory receptor which transduces a chemical substance (endogenous or induced) to generate a biological signal. This signal may be in the form of an action potential, if the chemoreceptor is a neuron, or in the form of a neurotransmitter that can activate a nerve fiber if the chemoreceptor is a specialized cell, such as taste receptors, or an internal peripheral chemoreceptor, such as the carotid bodies. In physiology, a chemoreceptor detects changes in the normal environment, such as an increase in blood levels of carbon dioxide (hy

limited quantity of material which is intended to be similar to and represent a larger amount of that material

analytical chemistry method to determine the amount of nitrogen in certain organic compounds

mass of potassium hydroxide (in mg) necessary to neutralise the free fatty acids contained in 1 g of fat

process of analytical chemistry

chemical compound

dimensionless quantity

type of mass spectrometry that uses an inductively coupled plasma to ionize the sample

quantity of water contained in a material

method of analytical chemistry

thumb|right|Elution principle of column chromatography In analytical and organic chemistry, elution is the process of extracting one material from another by washing with a solvent: washing of loaded ion-exchange resins to remove captured ions, or eluting proteins or other biopolymers from an electrophoresis or chromatography column.

Aluminon, the triammonium salt of aurintricarboxylic acid, is a dye often used to detect the presence of the aluminium ion in an aqueous solution. Aluminon forms a red complex salt in combination with Al3+. left|thumb|Deep purple pigment in a neutral aqueous solution. Made from aluminon and ferric (Fe3+) ions. In addition to its use in qualitative inorganic analysis, aluminon has applications in pigment production. It forms brilliantly colored lake pigments with many metals. The pigments are red in combination with Be2+ and Ga3+. The pigment is deep purple or reddish-brown in combination with

method used for determining the concentrations of elements in many materials

number of milligrams of potassium hydroxide required to saponify 1g of fat under the conditions specified

Study of analytes using scientific instruments

vacuum-tube structure that multiplies incident charges by means of secondary emission

for a given analytical procedure, concentration or quantity derived from the smallest measure that can be detected with reasonable certainty

method to determine protein concentration

Permanganommetry is one of the techniques used in chemical quantitative analysis. It is a redox titration that involves the use of permanganates to measure the amount of analyte present in unknown chemical samples. It involves two steps, namely the titration of the analyte with potassium permanganate solution and then the standardization of potassium permanganate solution with standard sodium oxalate solution. The titration involves volumetric manipulations to prepare the analyte solutions.

In analytical chemistry, biomonitoring is the measurement of the body burden of toxic chemical compounds, elements, or their metabolites, in biological substances. Often, these measurements are done in blood and urine. Biomonitoring is performed in both environmental health, and in occupational safety and health as a means of exposure assessment and workplace health surveillance.

technique by which phase transitions of chemical reactions can be followed by observation of the heat absorbed or liberated

chemical compound

thumb|320px|alt="dielectrophoresis of cancer cells"|Dielectrophoresis assembling cancer cells in a 3D microfluidic model.

act of counting and measuring that maps human sense observations and experiences into quantities

chemical analysis technology

Pervaporation (or pervaporative separation) is a processing method for the separation of mixtures of liquids by partial vaporization through a non-porous or porous membrane.

difference between equilibrium and initial amount of a substance, divided by its stoichiometric number

sample preparation process by which compounds that are dissolved or suspended in a liquid mixture are separated from other compounds in the mixture according to their physical and chemical properties