A novel analytical method for accurate determination of boron (B), phosphorous (P), and molybdenum (Mo) content in biosludge samples based on a relatively recent analytical technique, microwave plasma atomic emission spectrometry (MP-AES), is developed in the present work. Microwave assisted acid digestion method is utilized to extract B, P, and Mo from biosludge. To demonstrate the reliability...

background: incense and joss stick are generally used in the world. most products were made in small household factories. there are many environmental and occupational hazards in these factories. objective: to evaluate the workplace environmental and occupational hazards in small household incense and joss stick factories in roi-et, thailand. methods: nine small household factories in rural are...

The production of nuclear fuel used in the research reactor at Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP) requires a series of chemical and metallurgical processes. The quality of the end product depends on the control over all the stages of the manufacturing process and over the quality of raw materials employed. In fact, spectrometric methods are increasingly used as quanti...

The aim of this paper was to determine the concentration heavy metals in dust samples by method analysis inductively coupled plasma optical emission spectrometry (ICP-OES) and assess degree pollution studied areas. subjected analytical analyzes were collected from vicinity industrial areas urban localities Jiu Valley, a monoindustrial area. main determined were: Cu, Zn, Pb, Ni, Cr, Co etc. Dust...

ZnO and ZnO: Mn nanocrystals synthesized via reverse micelle method. The structural properties nanocrystals were investigated by XRD and Transmission electron microscopy (TEM). The XRD results indicate that the synthesized nanocrystals had a pure wurtzite (hexagonal phase) structure. The various optical properties of these nanocrystals such as optical band gap energy, refractive index, dielectr...