Chloramphenicol (CAP) and thiamphenicol (TAP) – analogue of CAP are widely used in the growth of animals and marine culture as they are broad spectrum antibiotics. Due to the development of resistance of microorganisms against antibiotics many countries have completely banned the use of them. A Negative Electro spray ionization mode with liquid chromatography and mass spectrometry was used to m...

Abstract This paper details the investigation of a discrete coating observed on group Egyptian panel paintings, six mummy portraits and one funerary panel, dating from first-third century CE. Six in this are encaustic, is tempera using an animal glue binder. An accretion or has been surface recesses paint layers these panels. Examination ultraviolet radiation revealed irregular visible fluoresc...

Stir bar sorptive extraction followed by liquid desorption and high performance liquid chromatography with tandem mass spectrometry (SBSE-LD-LC-MSMS) has been developed for the determination of 15 pesticides or selected metabolites from different families (herbicides, insecticides, fungicides) in surface water samples. The optimization of parameters that could influence SBSE-LD efficiency was c...

Introduction: To investigate the nonlinear kinetics of in vitro hepatic uptake the OATP substrate, Pitivastatin, was used as a probe. Experiments were conducted using freshly isolated rat hepatocytes, utilising the ‘oil spin’ methodology described by Hassen et al [1]. Briefly, freshly isolated rat hepatocytes were incubated with Pitvastatin (5–300μM). At 10 s, 30 s, 50 s and 70 s aliquots were ...

Two agro-ecological zones in Kenya were selected to compare the distribution in maize of Aspergillus spp. and their toxigenicity. These were Nandi County, which is the main maize growing region in the country but where no human aflatoxicoses have been reported, and Makueni County where most of the aflatoxicosis cases have occurred. Two hundred and fifty-five households were sampled in Nandi and...