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New record of two Korean feather mites (Acari: Sarcoptiformes: Astigmata) isolated from water birds
Han, Yeong-Deok,Choe, Seongjun,Eom, Keeseon S.,Min, Gi-Sik The National Institute of Biological Resources 2017 Journal of species research Vol.6 No.no.spc
Two feather mites, Scutomegninia phalacrocoracis Dubinin and Dubinina, 1940 and Ptiloxenus major ($M{\acute{e}}gnin$ and Trouessart, 1884) are reported for the first time in Korea. Specimens of S. phalacrocoracis and P. major were collected from the great cormorant, Phalacrocorax carbo and great crested grebe, Podiceps cristatus, respectively. The genera Scutomegninia Dubinin, 1951 and Ptiloxenus Hull, 1934 are also new reports for South Korea. Here, we provide morphological descriptions and illustrations of these two species. Additionally, we provide partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) as DNA barcodes.
엄한영,양동혁,서준혁,Han Young Eom,김운용,Junghyun Kim,Seul Gi Lee,Hyun-Deok Cho,한상범 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.3
A simple, robust and reliable method for thedetermination of residual robenidine in chicken muscleusing high performance liquid chromatography with ultraviolet(UV) detection was developed and validatedaccording to the Codex Alimentarius Commission guidelines. Chicken muscle was extracted by acetonitrile/formicacid (98:2, v/v) and defatted with hexane. Analytes wereisocratically separated on a Luna C18 column(4.6 9 150 mm, 5 lm) using 70 % methanol in watercontaining 0.1 % trifluoroacetic acid at a flow rate of1.0 mL/min at 30 C. UV detection was performed at312 nm. The method was validated by assessing performanceparameters including selectivity, linearity, limit ofquantification (LOQ), precision, accuracy, recovery, stabilityand robustness. A calibration curve that was constructedover 0.05–0.5 lg/g showed correlation coefficientsof more than 0.999. The intra- and inter-day precisions (ascoefficient of variation) were 1.45–3.32 and 2.63–4.99 %,respectively. The intra- and inter-day accuracies were99.4–105.3 and 98.3–101.6 %, respectively. The recoverieswere in the range of 76.6–81.8 %and the LOQwas 0.05 lg/g. The developed method showed suitable performance for thedetermination of robenidine residues in chicken muscle.