A technique has been developed for injecting metallic mercury intravenously in aqueous solution. Thirty seconds after intravenous injection of rats with oi ,ug. metallic mercury labelled with 203Hg nearly 20% of the dose had been exhaled and the concentration in the brain was nearly as high as in the blood. After injection of mercuric ion little of the dose was exhaled, and brain uptake was muc...

A sequential injection (SI) method for the determination of mercury via cold vapor atomic absorption spectrophotometry is presented. The method differs from flow injection (FI) cold vapor methods for the determination of mercury because of the simplicity of the system required for the method: one pump, one valve, a gas-liquid separator, and an atomic absorption spectrophotometer equipped with a...

Fulland pilot-scale data has been collected on the effectiveness of powdered activated carbon (PAC) injection for control of mercury emissions from flue gas of coal-fired power plants. However, there has been limited modeling work accounting for the removal of mercury by existing equipment as shown by Information Collection Request (ICR) data and by PAC injection, independently of one another. ...

Large efforts are made to limit the emissions of fine particles and mercury from coal combustion. Modern fabric filters are certainly an alternative for an efficient removal of fine particles and offer also the option to inject adsorbents to improve the removal of mercury. In this study the particle size distribution was measured after a modern design high ratio fabric filter (HRFF) located aft...

Efforts to reduce anthropogenic mercury emissions worldwide have recently focused on a variety of sources, including mercury emitted during coal combustion. Toward that end, much research has been ongoing seeking to develop new processes for reducing coal combustion mercury emissions. Among air pollution control processes that can be applied to coal-fired boilers, electrostatic precipitators (E...

Influences of biliary obstruction and systemic depletion of glutathione (GSH) on the disposition of a low nontoxic iv dose of inorganic mercury were evaluated in rats in the present study. Specifically, the disposition of mercury in the kidneys, liver, small and large intestines, and blood was assessed 1 h after the injection of 0.5 micromol/kg mercuric chloride in control rats and rats pretrea...

Activated carbon injection upstream of a particulate control system is currently the most viable method available for removal of both elemental and oxidized mercury from coal-fired utility flue gas streams [1]. However, current estimates predict very high costs associated with mercury control, with activated carbon costs representing a large fraction of the overall costs. In order to make carbo...

background: dental clinics are known to be one of the largest users of toxic inorganic mercury. it is well documented that dentists and dental assistants who work with amalgam are chronically exposed to mercury vapor. this study investigates exposure to mercury vapor in a dental clinic. methods: gbc cold vapor atomic absorption spectrometry (aas), using sodium borohydride as the reducing agent,...

Stimulated by state-of-the-art robotic and computer technology, Intra Cytoplasmic Sperm Injection (ICSI) automation aims to scale and seamlessly transfer the human hand movements into more precise and fast movements of the micro manipulator. Piezo-drill cell injection, a novel technique using piezo-driven pipettes with a very small mercury column, has significantly improves the survival rates o...