Search Results

You are looking at 31 - 40 of 67 items for :

  • Materials and Applied Sciences x
  • Refine by Access: All Content x
Clear All

, National Institute for Occupational Safety and Health (NIOSH). Available from: http://www.cdc.gov/niosh/npg/ Stegink, L.D., Brummel, M.C., Filer, L.J. & Baker, G.L. (1983): Blood methanol

Restricted access

-homogenised tomato sample was crushed in a crucible mortar with quartz and extracted with methanol and then with 1:5 methanol:dichloroethane. The dichloroethane fraction was separated in a separating funnel after addition of 1 ml water to ensure phase separation. The

Open access

in methanol. A working mix from the standard solution of 5 mg L −1 was prepared by transferring an appropriate aliquot of each stock solution into methanol. All stocks and working solutions were stored at −18 °C in the dark. 2.2 QuEChERS extraction

Open access

Candan, F., Unlu, M., Tepe, B., Daferera, D., Polissiou, M., Sokmen, A. & Akpulat, H.A. (2003): Antioxidant and antimicrobial activity of the essential oil and methanol extracts of Achillea millefolium Afan. (Asteraceae). J. Ethnopharmacol. , 87

Restricted access

. J. Chromatogr. 607 349 352 Naczk, M. & Shahidi, F. (1989): The effect of methanol

Restricted access

the methanol extract of Cyclotrichium niveum . Pharm. Biol. , 47 , 219–229. Kizil M DNA damage protecting activity and in vitro antioxidant potential of the methanol extract of

Restricted access

-Gutiérrez , A. (2010): Metabolite profiling and quantification of phenolic compounds in methanol extract of tomato fruit. Phytochemistry , 71 , 1848–1864. Fernández-Gutiérrez A. Metabolite

Restricted access

standard in organic solvents (methanol for oxytetracycline and acetonitrile for erythromycin) to achieve a final concentration of 1 mg ml -1 . Stock solutions were stored at 4 °C for about 4 weeks. Working standards solutions of oxytetracycline (2.5100 ng g

Restricted access

, extracted with methanol at 40 °C for 24 h, and then vacuum evaporated. Extraction yields of each extract are presented in Table 1 . 2.3 HPLC-DAD analysis Six different phenolic substances (chlorogenic acid, cyanidin, caffeic acid, trans -ferulic acid

Open access

-Bidgoli, Z. & Batooli, H. (2009): GC/MS analysis and in vitro antioxidant activity of essential oil and methanol extracts of Thymus caramanicus Jalas and its main constituent carvacrol. Fd Chem. , 115 , 1524

Restricted access