The invention discloses a chemical derivation-based detection method for
hemolymph metabolin of
migratory locust, and relates to the field of animal
ecology and
analytical chemistry. The detection method specifically comprises the following steps of: taking
hemolymph, deproteinizing by adding
ethanol-
acetonitrile mixed
solvent, supersonically extracting, and centrifuging at a high speed to obtain metabolin extracting solution;
drying the extracting solution by means of
pressure reduction, adding
methoxamine hydrochloride-
pyridine solution, supersonically dissolving, blending by means of vortex, and deriving in an oximation way in a constant-temperature water bath; adding N-methyl-N-
trimethylsilane-trifluoroacetamide
reagent, blending by means of vortex, and deriving in an
alkylation way in the constant-temperature water bath; and adding
methyl oleate-normal
heptane solution to compensate the volume, blending by means of vortex, and analyzing by a spare
gas chromatography-
mass spectra
coupling technique. The detection method provided by the invention is convenient, high-efficiency, mild in
reaction conditions, good in
repeatability, wide in metabolin coverage, suitable for developing the multi-center and large-sample research, and capable of providing help for knowing the biological law of various
migratory locust variations and the occurrence mechanism of the
locust plague.