The need for field and laboratory studies of the physical and
chemical behavior of environmentally significant organic molecules often
poses problems because of the toxicity of the chemical and the difficulty
of detecting it at environmentally significant concentrations.
Two dysprosium tracers, dysprosium (III) trisacetylacetonate trihydrate
and dysprosium(III) trisdibenzoylmethane monohydrate, were...
The purpose of this study was to investigate whether
the beneficial effects which the consumption of fish oil
imparts on hemostatic function can be modified by the level
of dietary selenium. Male Sprague Dawley rats were fed for
eight weeks semipurified diets containing 7% corn oil (by
weight) or 5.5%...
An automated on-line ion exchange trace enrichment system has
been developed to improve the detection limits of flame atomic
absorption (AA) spectrophotometry in the determination of trace
metals in natural waters. The sample solution is passed through a
column of Chelex-100 chelating resin by a carrier buffer stream
delivered from...
A high performance liquid chromatography (HPLC)
procedure using a LiChrosorb-NH₂ column and a eluant
buffer of 75:25 (v/v) of acetonitrile:0.05 M KH₂P0₄, pH
5.95, was developed for the successful separation and
determination of ascorbic and erythorbic acids in selected
food samples.
Application of the method, which is sensitive, rapid
and...
The inhibition of mixed-function oxidase (MFO) activity by ethanol or acetaldehyde was examined in vivo by monitoring changes in salivary half-life of antipyrine or aminopyrine in adult male Sprague-Dawley rats. Ethanol (1-6 g/kg, po) or acetaldehyde (4-8 mmol/kg, ip) was administered 20 minutes prior to antipyrine (100 mg/kg, ip) or...