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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z      all (6540 items)

π – π* state
π → π* transition
π → σ* transition
π-adduct
π-bond
π-complex
π-electron acceptor/donor group
P, M
packed column in chromatography
packing in column chromatography
paddlanes
pair attenuation coefficient in nuclear chemistry
pair correlation length, Math - symbol in thin filmsquantity
pair production in nuclear chemistry
Pallmann effect
PAN-based carbon fibres
paraffin
parallel-chain crystal in polymers
parallel reactions
paramagnetic
parent hydride
parent ion in mass spectrometry
partial anodic (cathodic) current
partial charge exchange reaction
partial charge transfer reaction
partial decay constant in nuclear chemistry
partial digestion in spectrochemical analysis
partial isotherm (or individual isotherm) in surface chemistry
partial kinetic current in electrochemistry
partial least squares (PLS)
partially draining
partial mass density, Math - symbol quantity
partial microscopic diffusion control (encounter control)
partial molar Gibbs energy
partial molar quantity
partial order of reaction
partial pressure
partial rate factor
partial specific volume, Math - symbol
particle concentration in atmospheric chemistry
particle density in nuclear chemistry
particle induced X-ray emission analysis
particle scattering factor
particle scattering function
particle size in atmospheric chemistry
particle size distribution in atmospheric chemistry
particular property
particulate carbon
particulate matter in atmospheric chemistry
partition
partition chromatography
partition coefficient
partition constant, Math - title quantity
partition function
partition isotherm in chromatography
partition ratio, Math - title quantity
partly open film
pascal unit
passivation in electrochemical corrosion
passivation potential in electrochemical corrosion
passive metal
passive sampler
passive state in electrochemical corrosion
Paterno–Büchi reaction
pattern recognition
paucidisperse system
PDMR
peak in chromatography
peak analysis
peak area in chromatography
peak area method
peak base in chromatography
peak concentration (trace atmospheric component)
peak current
peak elution volume (time), Math - symbol, Math - symbol in column chromatography
peak enthalpimetry
peak fitting
peak height in chromatography
peak maximum in chromatography
peak potential
peak resolution, Math - title in chromatographyquantity
peak widths in chromatography
pectins
Peierls transition
pellicular packing in chromatography
penams
pendant chain
pendant group (side group)
penems
penetrant (permeant)
penetration depth
penicillins
Penning gas mixture
pentads in polymers
pentaprismo-
peptides
peptidoglycan
peptization in colloid chemistry
per acids
percent
percentage error
percentage exposed in metallic catalysts
percentage relative error, Math - symbol (%)
percentage standard deviation, Math - symbol (%), Math - symbol (%)
percent diastereoisomer excess
percent enantiomer excess
perfectly polarized interphase
perfusion stationary phase (material) in liquid chromatography
pericyclic reaction
perikinetic aggregation in colloids
period, Math - symbol quantity
periodic copolymer
periodic copolymerization
periodic voltage
peripheral atom in organic reaction mechanisms
periplanar
periselectivity
peritectic reaction
peritectoid reaction
peritectoid temperature
permeability, Math - symbol quantity
permeability of vacuum, Math - symbol constant
permeate
permeation chromatography
permeation tube
permittivity, Math - symbol quantity
permittivity of vacuumconstant
permselectivity
peroxides
peroxisome
peroxo compounds
peroxy acids
perpendicular effect
persistence length in polymers
persistent
perspective formula
perstraction
perturbed dimensions in polymers
pervaporation
pesticide
pesticide residue
petaSI unit prefix
petroleum coke
petroleum pitch
pH
pH0.5 or pH1/2 in solvent extraction
pharmacodynamics
pharmacokinetics (2004, 76, 1064)
pharmacokinetics (1993, 65, 2082)replaced
phase
phase fluorimetry
phase I reaction of biotransformation
phase II reaction of biotransformation
phase inversion
phase ratio, Math - symbol in chromatographyquantity
phase ratio, Math - symbol in liquid-liquid distributionquantity
phase rule
phase separation
phase-space theory
phase-transfer catalysis
phase transition
phenolates
phenols
phenomenological equation
phenonium ions
phenotype
phenoxides
pheromone
pH glass electrode
pH gradient in electrophoresis
phonon
phosphanes
phosphanylidenes
phosphatidic acids
phosphazenes
phosphine oxides
phosphines
phosphinic acids
phosphinidenes
phosphinous acids
phospho
phosphoglycerides
phospholipids
phosphonic acids
phosphonitriles
phosphonium compounds
phosphonium ylides
phosphono
phosphonous acids
phosphoramides
phosphoranes
phosphoranyl radicals
phosphorescence
phosphorimetry
phosphoroscope
phosphorus ylides
phosphorylation
phosphylenes
photoacoustic detector
photoacoustic effect
photoacoustic spectroscopy
photoadsorption
photoaffinity labelling
photoassisted catalysis
photocatalysis
photocatalytic cell
photochemical detector
photochemical equivalence
photochemical hole burning
photochemical reaction
photochemical smog
photochemical yield
photochemistry
photochromism
photoconductive detector
photoconductivity
photocrosslinking
photocuring
photocurrent yield
photodegradation
photodesorption
photodetachment of electrons
photodiode
photodiode array
photodynamic effect
photoelectrical effect
photoelectric attenuation coefficient
photoelectric detector
photoelectric peak
photoelectrochemical cell
photoelectrochemical etching
photoelectrochemistry
photoelectrolytic cell
photoelectron spectroscopy (PES)
photoelectron yield
photoemissive detector
photoexcitation
photo-Fries rearrangement
photogalvanic cell
photoimaging
photoinduced electron transfer
photoinduced polymerization
photoinitiation
photoionization
photoionization detector in gas chromatography
photoisomerization
photoluminescence
photolysis
photometry
photomultiplier tube
photon
photon activation
photon counting
photon emittance
photon exitance, Math - symbol quantity
photon exposure, Math - symbol quantity
photon flow, Math - symbol quantity
photon fluence, Math - symbol quantity
photon fluence rate, Math - symbol quantity
photon flux
photon irradiance, Math - symbol quantity
photon quantities
photon radiance, Math - symbol quantity
photooxidation
photooxygenation
photopeak
photophoresis
photophosphorylation
photophysical processes
photopolymerization
photoreaction
photoreduction
photoresist
photosensitization
photosensitizer
photostationary state
photosynthesis
photosystem
photothermal effect
photothermography
phototransistor
photovoltaic cell
pH-rate profile
pH standard
phthaleins
phthalides
physical adsorption
physical network
physical quantity (measurable quantity)
physisorption (physical adsorption)
phytotoxicant
picoSI unit prefix
picrates
piezoluminescence
pile-up in radioanalytical chemistry
pinacols
PIN (p-intrinsic-n) diode
PIN semiconductor detector
pinocytosis
pitch
pitch-based carbon fibres
pitting corrosion
Pitzer strain
planar chirality
planar chromatography
planar film
planar stereoisomerism
Planck constant
plane angle
plasma in biology
plasma in spectrochemistry
plasma desorption ionization in mass spectrometry
plasmid
plastic flow
plastic transition
plateau border in surface chemistry
plate height, Math - symbol in chromatography
plate number, Math - title in chromatographyquantity
pleiotropic gene
ploidy
plug-flow in catalysis
plumbylenes
plumbylidenes
plume in atmospheric chemistry
plus, minus
pneumatic detector
point group
point of zero charge (p.z.c.)
poise unit
poison in catalysis
Poisson distribution
polar aprotic solvent
polar effect
polarity
polarizabilityquantity
polarization
polarization, Math - symbol in electrochemistryquantity
polarization error in spectrochemical analysis
polarized interphases
polarography
polar solvent
pollution (pollutant)
pollution rose
polyaddition
polychromator
polycondensation
polycrystalline graphite
polycyclic system
polydent
polydisperse medium
polydisperse polymer
polyelectrolyte
polyfunctional catalysis
polygranular carbon
polygranular graphite
polyhedral symbol
polyhedranes
polyions
polyketides
polymer
polymer blend
polymer crystal
polymer crystallite
polymerase chain reaction (PCR)
polymeric
polymeric stationary phase (material) in liquid chromatography
polymerization
polymer molecule
polymer network
polymer–polymer complex
polymer-poor phase
polymer-rich phase
polymer–solvent interaction
polymolecularity correction
polymorphic transition
polypeptides
polyprenols
polyquinanes (polyquinenes)
polysaccharides
polysulfanes
polysulfides
polytopal rearrangement
polytypic transition
pooled relative standard deviation
pooled standard deviation
population inversion
pore size distribution
Porod–Kratky chain in polymers
porosity
porous-layer open-tabular (PLOT) column in chromatography
porphyrinogens
porphyrins
position-sensitive photomultiplier tube
positive feedback
positive ion in mass spectrometry
positron
positronium
post-column derivatization in chromatography
post-filter effect in luminescence spectroscopy
postprecipitation
potential at the point of zero charge (p.z.c.)
potential-determining (p.d.) ions
potential energy, Math - title, Math - title quantity
potential-energy profile
potential-energy (reaction) surface
potential of a cell reaction
potential temperature
potentiation
potentiometer
potentiometric detection method in electrochemical analysis
potentiometric selectivity coefficient
power, Math - symbol quantity
power level
pre-association
precipitation
precipitation fractionation of polymers
precipitation from homogeneous solution (pfhs) in analysis
precipitation titration
precision
precision of a balance
precision of a weighing
precision of indication of a balance
preconcentration in trace analysis
preconcentration coefficient of a desired microcomponent in trace analysis
precursor in radioanalytical chemistry
precursor complex
precursor ion in mass spectrometry
predissociation
pre-equilibrium in solvent extraction
pre-equilibrium (prior equilibrium)
pre-exponential factor, Math - symbol quantity
preferential sorption in polymers
pre-filter effect in luminescence spectroscopy
premium coke
premix burner in flame spectroscopy
prenols
pre-polymer
pre-polymer molecule
pressure, Math - symbolquantity
pressure flow
pressure gradient correction factor in gas chromatography
pressure-induced transition
pressure jump
pressure-sensitive detector
pretreatment of a catalyst
primary crystallization
primary current distribution
primary electrons (pe) in in situ microanalysis
primary excitation of X-rays
primary isotope effect
primary kinetic electrolyte effect
primary kinetic isotope effect
primary mixture
primary particle in catalysis
primary photochemical process (primary photoreaction)
primary pH standards
primary pollutant in atmospheric chemistry
primary (photo)process
primary (photo)product
primary sample
primary standard
primary structure
primary structure of a segment of a polypeptide
primitive change
principal group
principal ion in mass spectrometry
principal moments of inertia
principle of least nuclear motion
principle of microscopic reversibility
principle of minimum structural change
prior distribution, Math - symbol
prior equilibrium
priority
probability, Math - symbol
probability density, Math - symbol
probe in biotechnology
process
prochirality
prochirality centre
product
product-determining step
product development control
product ion
productivity, Math - symbol in biotechnologyquantity
product state distribution
pro-E, pro-Z
progenitor ion in mass spectrometry
program
programmed-flow chromatography (flow programming)
programmed-pressure chromatography (pressure programming)
programmed-temperature chromatography (temperature programming)
projection formula
prolate trochoidal mass spectrometer
promoter (gene technology)
promoter in catalysis
promotion
prompt coincidence
prompt neutrons
propagating reaction
propagation
propellanes
property
prophage
proportional counter
proportional counter tube
proportional gas-scintillation counter
proprochirality
pro-R, pro-S
pros in histidine nomenclature
prostaglandins
prostanoids
prosthetic group
proteases
protected lyophobic colloid
protective action in colloid chemistry
protein engineering
proteins
proteoglycan
proteome
protic
protide
protio
protium
protogenic (solvent)
protolysis
proton
proton affinity
protonated molecule in mass spectrometry
protonation constant
proton charge
proton magnetic momentconstant
proton magnetogyric ratio
proton number
proton rest massconstant
proton transfer reaction
protophilic (solvent)
protoplast
prototrophs
prototropic rearrangement (or prototropy)
pseudo acids
pseudo-asymmetric carbon atom
pseudo-axial
pseudo bases
pseudo-catalysis
pseudo-co-oligomer
pseudo-copolymer
pseudo-equatorial
pseudo-first-order rate coefficient
pseudo-first-order reaction
pseudohalogens
pseudomolecular rearrangement
pseudopericyclic
pseudo rate constant
pseudorotation
pseudo-unimolecular
pseudoureas
pseudo-zero-order reaction
psychosine
psychrometric hygrometer
psychrometry
puffing
puffing inhibitor
pulsatance
pulse amplitude analyser
pulse amplitude selector
pulse duration in electroanalytical chemistry
pulse height analyser
pulse reactor in catalysis
pump-probe technique
purine bases
pyramidal inversion
pyranoses
pyrimidine bases
pyro
pyroelectric detector
pyrolysis
pyrolysis-gas chromatography
pyrolytic carbon
pyrolytic graphite
pyrromethenes