chromatography
Let an agent explain chromatography and its principles, relay the main techniques, instrumentation and applications from analytical chemistry sources, describe the specialised methods the registry aliases name, and distinguish chromatography from electrophoresis, distillation, filtration and spectroscopy.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain chromatography and its principles, relay the main techniques, instrumentation and applications from analytical chemistry sources, describe the specialised methods the registry aliases name, and distinguish chromatography from electrophoresis, distillation, filtration and spectroscopy.
A family of laboratory techniques for separating the components of a mixture by passing it in a mobile phase over a stationary phase with which the components interact differently, from paper and thin-layer chromatography to gas, liquid and ion chromatography, with related and specialised methods such as countercurrent chromatography, argentation chromatography using silver ions, micellar electrokinetic chromatography, field-flow fractionation including its asymmetric flow variant, and paper analytical devices for low-cost testing; chromatography is fundamental to analytical and preparative chemistry.
What it is for: Separating and analysing mixtures.
It can be explain principles; relay techniques and applications; describe specialised methods; distinguish related techniques.
Distinguishing features
Mobile and stationary phases
Differential retention
Analytical and preparative
Many variants
What it looks like
Columns, plates or instruments through which samples flow, producing chromatograms.
Physical character
invented: 1900-1903 note - Mikhail Tsvet
HPLC developed: 1960s-1970s note
Nobel Prize: 1952 year - Martin and Synge, partition chromatography
How it is recognised
Separation by differential interaction with a stationary phase
Gas, liquid, paper and thin-layer chromatography; countercurrent, argentation and micellar electrokinetic chromatography; field-flow fractionation; paper analytical devices
Electrophoresis uses electric fields; distillation uses boiling points; filtration uses size; spectroscopy measures light
Related models
is a kind of - in registry terms
is a kind of - in registry terms
was invented by - around 1900
is often coupled with - for identification
In practice
Families and kinds
gas chromatography
liquid chromatography including HPLC
paper and thin-layer chromatography
ion and size-exclusion chromatography
countercurrent and argentation chromatography
micellar electrokinetic chromatography
field-flow fractionation and asymmetric flow FFF
paper analytical devices
Standards and regulation
Pharmacopoeia and ISO methods specifying chromatographic procedures
Laboratory accreditation standards
Failure modes and hazards
Confusing chromatography with electrophoresis
Registry aliases mixing related but distinct techniques
Method validation failures
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.chromatography
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What chromatography is.
Science.
Definition
Definition.
Definition
Definition.
- What is chromatography, and how does it differ from electrophoresis, distillation, filtration and spectroscopy? definition
- Is the question about principles, a technique, instrumentation or an application? boundary
Techniques
Techniques.
Techniques
Techniques.
- What are gas, liquid, paper, thin-layer, ion, countercurrent, argentation and micellar electrokinetic chromatography, field-flow fractionation and paper analytical devices? definition
- Which entry fits the specific technique? action
Principles Principles.
Science.
Theory
Theory.
Theory
Theory.
- How do retention, selectivity, efficiency and resolution govern separations? provenance
- Which references are standard? provenance
Instruments
Instruments.
Instruments
Instruments.
- How are columns, detectors and coupled instruments such as GC-MS and LC-MS built? provenance
- Which sources are cited? provenance
Applications Applications.
Application.
Fields
Fields.
Fields
Fields.
- How is chromatography used in pharmaceuticals, food, environment, forensics and biochemistry? provenance
- Which entry fits the specific application? action
Methods
Method development.
Methods
Methods.
- How are chromatographic methods developed and validated? provenance
- Which entry fits analytical method validation? action
Context History.
Context.
History
History.
History
History.
- How did chromatography develop from Tsvet through Martin and Synge to modern instruments? provenance
- Which entry fits the history of analytical chemistry? action
Frontiers
Frontiers.
Frontiers
Frontiers.
- What are current developments such as ultra-high-performance LC and low-cost paper devices? provenance
- Which entry fits microfluidics? action
What the second pass must settle
- Should field-flow fractionation and paper analytical device be separate primary entries?
- How should analytical chemistry sources be linked?
- The registry entry has merged aliases naming distinct techniques; should they be split off?