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selective transfer of material between two immiscible liquids based on solubility (nernst distribution law)
liquid liquid extraction
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immiscible
not forming a homogeneous mixture when mixed
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concentration of X in A/ concentration of X in B
KD
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conc X in organic phase/conc of X in aqueous phase
Kd
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solid phase extraction
condition, sample loading, wash, elute
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constant temperature, same state in solvents, equilibrium concs used, dilute solutions used, immiscible solvents
all restrictions of distribution law
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liquid liquid extraction efficiency depends on the distribution ratio/partition coefficient and
volume of phases
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100D / (D + Vaq/Vorg)
% extraction
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interaction in thin layer chromatography is
adsorption
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conc of X in liquid/conc of X in headspace
KD
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at a constant temperature the solubility of a gas in a liquid is proportional to the partial pressure of the gas above it
henrys law
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the ________ of a method is the closeness in agreement of multiple independant measurements, which have been obtained under stipulated conditions
precision
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___ = mean of blank + 3 x standard deviation of blank
lod
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___ = mean of blank + 10 x standard deviation of blank
loq
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________ mean +/- 2 x standard deviation
warning limits (shewhart chart)
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________ mean +/- 3 x standard deviation
action limits (shewhart chart)
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absorbance proportional to pathlength
lambert law
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absorbance proportional to concentration
beer law
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absorbance proportional to concentration x path length
beer lambert law
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in uv vis spec - dispersion system is
dual beam spectrphotometer
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high energy corresponds to
short wavelength
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long wavelengh corresponds to
low energy
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_____ showed that energy of radiation was proportional to frequency
plank
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H = 6.63 x 10^34 J s
planks constant
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time or distance to complete one cycle of the wave form
wavelength
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gamma ray, x ray, uv, visible, infra red, microwave, radio
high energy to low
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Card 2

Front

immiscible

Back

not forming a homogeneous mixture when mixed

Card 3

Front

concentration of X in A/ concentration of X in B

Back

Preview of the front of card 3

Card 4

Front

conc X in organic phase/conc of X in aqueous phase

Back

Preview of the front of card 4

Card 5

Front

solid phase extraction

Back

Preview of the front of card 5
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