Study of the Interference Effects of Aluminium on 5he Atom- and Ion-Lines of Alkaline Earth Metals in Aqueous Solutions using an ICP Spectrometer with Axially Viewed Plasma

The main advantage of inductively coupled plasma spectrometers with axially viewed plasma relative to the radially viewed plasma is the better detection power. The detection limits of the former are about 5–10 times lower than the latter. On the other hand, the axially viewed plasma has disadvantages. The most notable is the increased number of interference effects. In this paper, the study of the interference effects of aluminium on the atom- and ion-lines of alkaline earth metals are presented by examining different types of sample-introduction devices, such as a simple Meinhart- type concentric nebuliser, a V-groove nebuliser using a Sturman-Masters spray chamber, and an ultrasonic nebuliser

The Effect of a Rotating Magnetic Field on the Solidification of A356 Alloy Modified by Strontium

The A356 alloy, which consists of 100-200 ppm modifier, namely strontium was examined. The samples were solidified unidirectionally, and each sample had a pair which was solidified in a rotating magnetic field. The microstructure of the samples: morphology and the fraction of eutectic silicon was studied. The morphology of eutectic Si was very different in the samples - the samples solidified at different movement velocities - so it was necessary to determine the quantity of strontium. Magnetic stirring changes both the strontium content and the extent of modification. This paper describes the investigation methods and the effects of strontium modification

Cellulose-based catalyst design for efficient chlorate reduction

The reduction of undesirable chlorate (ClO3-) is important from both an environmental and an industrial point of view. In our work, cellulose-based catalysts have been designed for chlorate reduction by using palladium, platinum, and iron oxide. The produced catalysts were characterized by SEM, TEM, XRD, FTIR, and ICP. Even though low precious metal content (<0.6 wt%) was used during the catalyst preparation, high catalytic activity was achieved, and the conversion was as high as 92.5%. Furthermore, a continuous chlorate hydrogenation and monitoring system has also been developed within which the reduction has been carried out successfully and after about 160 min the ClO3- content has been reduced to zero