Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Mitsunori Murayama"'
Autor:
Masatoshi Watai, Kazuhiro Fujita, Munetomo Nakamura, Tamio Maitani, Mitsunori Murayama, Yoh-ichi Yatsukawa
Publikováno v:
Journal of the Food Hygienic Society of Japan (Shokuhin Eiseigaku Zasshi). 49:239-243
A simple and rapid LC/MS method for simultaneous determination of sedecamyin (SCM) and terdecamycin (TDM) in livestock products has been developed. SCM and TDM were extracted with acetonitrile. The extract was washed with n-hexane and then evaporated
Publikováno v:
Journal of the Food Hygienic Society of Japan (Shokuhin Eiseigaku Zasshi). 48:144-147
Simple and reliable methods using LC/MS have been developed for the determination of the beta-agonist ractopamine in swine and cattle tissues. Ractopamine was extracted with ethyl acetate from muscle and liver, and the ethyl acetate layer was evapora
Autor:
Kanako Yamaguchi, Shin Matsuoka, Kenji Tanno, Noriko Maruyama, Masahiko Takayama, Kazuhiro Fujita, Masatake Toyoda, Mitsunori Murayama, Masatoshi Watai
Publikováno v:
Journal of the Food Hygienic Society of Japan (Shokuhin Eiseigaku Zasshi). 41:149-153
畜産食品中のベンジルペニシリン (PCG) の微生物学的試験法について検討した. 水で抽出し, タングステン酸により除タンパクした後, Bond Elut C18で精製を行った. 定量は円筒平板法を用い,
Publikováno v:
Journal of Agricultural and Food Chemistry. 47:4791-4798
In an attempt to elucidate metabolic destination of TBTO, sulfur-containing metabolites were investigated in the urine. Tri-n-butyltin chloride (TBTC), tri-n-butyltin oxide (TBTO), and their in vitro metabolites in rat liver microsomal enzyme systems
Autor:
Isao Yamamoto, Kazuhiko Nishimura, Takashi Suzuki, Kayoko Takagi, Mitsunori Murayama, Hisashi Yamada, Kazunari Kondo
Publikováno v:
Journal of Agricultural and Food Chemistry. 45:1437-1446
Red sea bream (Pagrus major) were exposed to bis(tri-n-butyltin) oxide (TBTO), and accumulation, transformation, and excretion of TBTO in the muscle, liver, gills, and digestive tract were observed...
Publikováno v:
Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi). 38:12-15
An analytical method for residual oxytetracycline (OTC) in livestock and marine products was evaluated. OTC was extracted from a sample with McIlvaine buffer (pH 4.0) containing 0.01mol/L EDTA-2 Na. The extract was washed with hexane, followed by a S
Autor:
Isao Yamamoto, Mitsuru Uchiyama, Kazunari Kondo, Kazuhiko Nishimura, Hisashi Yamada, Mitsunori Murayama, Takashi Suzuki
Publikováno v:
Journal of Agricultural and Food Chemistry. 44:3989-3995
Tri-n-butyltin and its degradation products were measured in seawater samples between July 1994 and August 1995 at a marina that is located at a sequestered site of an enclosed harbor, Aburatsubo Bay, in Yokosuka, Japan. Dibutyltins, hydroxylated and
Publikováno v:
Analytical chemistry. 68(7)
Nitro-substituted polynuclear aromatic hydrocarbons occur in ambient suspended particulate matter and are of special concern because they act as direct mutagens. Determination of these compounds in a complex matrix such as particulate matter present
Autor:
Mitsunori Murayama
Publikováno v:
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan. 51(6)
Publikováno v:
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan. 47(6)
A simple and accurate method using liquid chromatography coupled with tandem mass spectrometry (LC/MS/MS) was developed for the determination of tetracyclines (TCs), i.e., oxytetracycline (OTC), chlortetracycline (CTC) and tetracycline (TC), in honey