Analytical chemistry

Analytical technique used for the spectrophotometric detection of chemical elements

instrument for the chemical analysis of solids

thumb|Carbon dioxide molecule. '''pCO2, pCO2', or P_\ce{CO2} is the partial pressure of carbon dioxide (CO2), often used in reference to blood but also used in meteorology, climate science, oceanography, and limnology to describe the fractional pressure of CO2 as a function of its concentration in gas or dissolved phases. The units of p''CO2 are mmHg, atm, torr, Pa, or any other standard unit of atmospheric pressure.

'''para-Dimethylaminobenzaldehyde''' is an organic compound containing amine and aldehyde moieties which is used in Ehrlich's reagent and Kovac's reagent to test for indoles. The carbonyl group typically reacts with the electron rich 2-position of the indole but may also react at the C-3 or N-1 positions. It may also be used for determination of hydrazine.

Cerimetry or cerimetric titration, also known as cerate oximetry, is a method of volumetric chemical analysis developed by Ion Atanasiu. It is a redox titration in which an iron(II)–1,10-phenanthroline complex (ferroin) color change indicates the end point. Ferroin can be reversibly discolored in its oxidized form upon titration with a Ce4+ solution. The use of cerium(IV) salts as reagents for volumetric analysis was first proposed in the middle of 19th century, but systematic studies did not start until about 70 years later. Standard solutions can be prepared from different Ce4+ salts, but of

molecular biology technique for determining protein-nucleic acid interactions in vitro

sum of inorganic carbon species in a solution

journal

biochemical laboratory technique

in metrology, highest quality standard accepted without reference to other standards of the same quantity

fast filtration technique

Microanalysis is the chemical identification and quantitative analysis of very small amounts of chemical substances (generally less than 10 mg or 1 ml) or very small surfaces of material (generally less than 1 cm2). One of the pioneers in the microanalysis of chemical elements was the Slovenian-Austrian Nobel Prize winner Fritz Pregl.

method for determining the concentration of a substance in an unknown sample

amount of inorganic noncombustible material a sample contains

chemical analysis method

Aquametry, in analytical chemistry, is the use of analytical processes to measure the water present in materials.

qualitative or quantitative procedure designed to detect presence of, or quantify, a chemical compound or group

thumb|Settling pond for iron particles at water works

Salicylaldoxime is an organic compound described by the formula . It is the oxime of salicylaldehyde. This crystalline, colorless solid is a chelator and sometimes used in the analysis of samples containing transition metal ions, with which it often forms brightly coloured coordination complexes.

peer-reviewed scientific journal

method in analytical chemistry

standards used to check the quality and metrological traceability of products

classification of particle sizes

In chemistry, coprecipitation (CPT) or co-precipitation is the carrying down by a precipitate of substances normally soluble under the conditions employed. Analogously, in medicine, coprecipitation (referred to as immunoprecipitation) is specifically "an assay designed to purify a single antigen from a complex mixture using a specific antibody attached to a beaded support".

Index in gas chromatography

technique to provide multiple products or purify a product

precise measurement glassware

chemical reagent with chemical interference properties

Bioanalysis is a sub-discipline of analytical chemistry covering the quantitative measurement of xenobiotics (drugs and their metabolites, and biological molecules in unnatural locations or concentrations) and biotics (macromolecules, proteins, DNA, large molecule drugs, metabolites) in biological systems.

technique used in analytical chemistry

treatment prior to chemical analysis

form of chemical analysis, analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve

semi-permeable membrane that transports certain dissolved ions, while blocking other ions or neutral molecules

thumb|Schematic diagram of one particular realization of nanofluidics in a nanocapillary array membrane, or NCAM. The NCAM is composed of a large number of parallel nanocapillaries, each of which have a pore radius, a/2, which is approximately the same size as the Debye length, κ−1. The electrical double layer is characterized by a counter-ion distribution, N, which is largest at the pore wall and decays toward the center of the pore. Nanofluidics is the study of the behavior, manipulation, and control of fluids that are confined to structures of nanometer (typically 1–100 nm) characteris

branch of chemistry for studying of chemical and biochemical phenomena in a cadaver

chemical used to detect unstable compounds

Chemotronics is an intersection field of chemistry (especially electrochemistry) and electronics dealing with the design of electrochemical and optical chemical sensors. One of pioneers of this field was Alexander Frumkin.

separation technique to characterize the size of colloidal particles

analyzing chemical and biological factors that determine the quality of an environment, like pollutants

The AutoAnalyzer is an automated analyzer using a flow technique called continuous flow analysis (CFA), or more correctly segmented flow analysis (SFA) first made by the Technicon Corporation. The instrument was invented in 1957 by Leonard Skeggs, PhD and commercialized by Jack Whitehead's Technicon Corporation. The first applications were for clinical analysis, but methods for industrial and environmental analysis soon followed. The design is based on segmenting a continuously flowing stream with air bubbles.

Data visualization

analysis of biochemical processes and reactions in an individual cell

solution containing little to no analyte of interest

Test used in analytical chemistry

Chemical test

method used in organic chemistry

product of the linear absorption coefficient and the molar volume

Method for observing interactions between molecules and surfaces

Analytical chemistry sampling procedure

number of milligrams of potassium hydroxide required to neutralize the acetic acid taken up on acetylation of one gram of a chemical substance that contains free hydroxyl groups

in hydrogeology and geochemistry, a way of displaying water chemistry data