[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]
fat basis Residues and maximum
residue limits (MRLs) of fat-soluble pesticides in animal commodities
may be expressed in terms of their concentration in the fat rather than
the whole product.
FID Flame ionisation detector for gas chromatography
or HPLC.
field drainage Removal of excess water
from soil and transport to surface waters in order to improve soil productivity
and trafficability. (Smart & Henderson, 1992)
flowable See suspension concentrate.
food chain - primary producers
Autotrophic organisms (e.g. algae, higher plants) which convert inorganic
compounds during the process of photosynthesis or chemosynthesis into organic
compounds (cell material) of higher energy content. These organisms represent
the first trophic level of the food chain.
food chain - secondary producers
Heterotrophic organisms (e.g. animals) using organic substances as a carbon
and energy source.
food chain - primary consumers
Heterotrophic organisms (e.g. filter feeding invertebrates such as daphnia
species) using organic substances directly from primary producers (e.g.
algae) as a carbon and energy source.
food chain - secondary consumers
Heterotrophic organisms (e.g. predator animals) feeding on primary
consumers.
food chain - primary decomposers
Heterotrophic organisms (e.g. bacteria) using dead organic matter from
all trophic levels as a carbon and energy source.
food chain - secondary
decomposers Heterotrophic organisms (e.g. certain soil fungi, collembola,
worms) using already partially decomposed organic matter as a carbon and energy
source.
formulant Any added material
in a pesticide formulation other than the biologically active ingredient(s).
This may include carrier or other substances which enhance the
biological activity or physio-chemical properties of the formulation.
See also adjuvant, diluent,
inert, sticker,
surfactant, vehicle.
(CIPAC, 1980)
formulation See pesticide
formulation.
fortified sample See spiked sample.
FPD Flame photometric detector for gas chromatography.
fresh weight basis Pesticide residues
are reported on the laboratory sample as it is received, with no allowance
for the moisture content. Maximum
residue limits (MRLs) and pesticide residues in food commodities
are expressed in this way.
freundlich isotherm Empirical
relationship describing the adsorption
of a solute from an liquid or gaseous phase to a solid in which the
quantity of material adsorbed per unit mass of adsorbent is expressed
as a function of the equilibrium concentration of the sorbate. See also
Kd.
frozen storage stability See storage stability
test.
fumigation Use of a pesticide in
gas or vapour form.
FTIR Fourier transform infrared spectroscopy.
> Synopsis
> Preface
> References
