The Effect of Radiations from a Mercury Arc in Quartz on Enzymes

Absolute Intensities in the Visible . and Ultra - Violet Spectrum of a Quartz Mercury Arc

Results of Irradiating Staphylococcus Aureus Bacteriophage with Monochromatic Ultraviolet Light

The incident energies required to kill Staphylococcus aureus or to inactivate its homologous bacteriophage have been measured at the various wave-lengths of the quartz mercury vapor arc between 238 and 302 mmicro and found to run strictly parallel, the readings for the S. aureus phage being obtained at a uniformly higher energy level. This difference in levels is of less significance than the s...

A Standard Source of Ultraviolet Radiation for Calibrating Photoelectric Dosage Intensity Meters

The advantages and disadvantages of sources emitting either a continuous or a discontinuous spectrum are considered in connection with the use of such lamps as a standard of ultraviolet radiation. It is shown that because of the high intensity and favorable distribution of the ultraviolet emission lines at 2967 to 3132 A, the quartz mercury-arc lamp is well adapted for standardizing photoelectr...

Effects of Quench Rate, NO, and Quartz Surface Area on Gas Phase Oxidation of Mercury by Bromine

Oxidized mercury species may be formed in combustion systems through gas-phase reactions between elemental mercury and halogens, such as chorine or bromine. Injection of bromine compounds or brominated sorbents have been shown to affect mercury speciation and removal in coal-fired power plants. This study examines how bromine species affect mercury oxidation in the gas-phase. Experiments were c...

استفاده از نانو ذرات نقره برای نمونه برداری از بخارات سمی جیوه از هوای محیط های صنعتی

Introduction: Mercury is one of the toxic metals that damages the nervous system and kidneys. Therefore, monitoring of mercury vapors in the environments is essential. .Material and Method: A new adsorbent was made from silver nanoparticles on a bed of quartz. The nano-adsorbent was capable for sampling of the trace amounts of mercury vapor from air. In this study, the required mercury vapor ...