The invention relates to the technical field of
periplaneta americana
powder microscopic flaking, and discloses a
periplaneta americana
powder microscopic identification method which comprises the following steps: S1, sample
degreasing: dividing a
periplaneta americana adult into five parts, namely a head part, a chest back plate, wings, an
abdomen part and chest feet by using
tweezers, respectively
grinding into
powder, taking 100g of powder of each part of the periplaneta americana, and uniformly mixing the powder with the powder of each part of the periplaneta americana; respectively filling the materials into a
filter paper tube, putting the
filter paper tube into an extraction tube of a
Soxhlet extractor, soaking the
American cockroach powder with an extracting solution, and removing
grease; s2, sample tabletting: taking the degreased powder, respectively adding
distilled water,
chloral hydrate and dilute
glycerol for tabletting, and preparing a water-loaded tablet, a
chloral hydrate cold-loaded tablet and a
chloral hydrate permeabilized tablet; s3,
microscopic observation: placing the prepared loading sheet under an
optical microscope, and carrying out
image acquisition and analysis on powder characteristics by using
image processing software equipped for the
microscope; and S4, identification standard. Compared with the prior art, the method has the advantages that
grease is convenient to remove, the observation definition and accuracy are improved, a microscopic identification standard is established, and an
identification system is perfected.