In 54 cases of accidental death in cities with water hardness of 60 parts per million (ppm) or
less, the mean myocardial magnesium concentration was 918 mug/g of dry tissue. This was 7…

Celem referatu jest poznanie własności maszyny komutatorowej prądu stałego pracującej
w warunkach awaryjnych. Maszynę pracującą jako silnik poddano badaniom w różnych …

The commutator of dc motor is approximated by equivalent resistance circuit. Extremely different
values are assigned to circuit parameters depending on the angular position of the rotor…

Present methods for the determination of carbon monoxide are discussed including indicator
tubes, the iodine pentoxide reaction and measurement by gas chromatography. In the gas …

The accurate and rapid measurement of cadmium in airborne particulates is described, with
particular reference to so-called high-volume air samples collected on glass fibre filters. The …

A new method for the measurement of sulphuric acid in airborne particulates is described.
Sulphuric acid present is separated from the sample matrix by microdiffusion at 200. The …

The earliest measurements of benz[α]pyrene (BαP) in air samples were almost exclusively
based on chroma-tography on alumina columns followed by ultraviolet absorption, in spite of …

A preatomizing (charring) step is customarily used in flameless atomic absorption spectroscopy.
Experiments were carried out to investigate the effect of the charring temperature on the …

In the measurement of airborne polycyclic aromatic hydrocarbons using ultraviolet
spectrophotometry, non-specific absorption is observed which increases as the wavelength …

The accurate and rapid measurement of lead in airborne particulates is discussed with
particular reference to so-called high-volume air samples. By standard addition analysis, it was …