Molybdenum and its compounds. Method of determining molybdenum and its compounds in workplace air
Journal Title: Podstawy i Metody Oceny Środowiska Pracy - Year 2014, Vol 30, Issue 1
Abstract
This method is used for determining molyb-denum and its compounds in workplace air. It is based on stopping molybdenum on a mem-brane filter, mineralizing the sample with concentrated nitric acid and sulphuric acid and preparing the solution for analysis in diluted nitric acid. Molybdenum in the solution is determined with atomic absorption spectrophotometry with a nitrogen peroxide-acetylene flame. The determination limit of the method is 0.4 mg/m[sup]3[/sup] (for a 600-L air sample). The developed method of determining molybdenum and its compounds has been recorded as an analytical procedure (see Appendix).
Authors and Affiliations
EWA GAWĘDA
Phosphoryl trichloride. Documentation
Phosphoryl trichloride is a clear, colourless to yellow, fuming liquid with a pungent and musty odor. It hydrolyses in water or moist air to hydrogen chloride and orthophosphoric acid. Phosphoryl trichloride is widely us...
Potassium bromate – inhalable fraction. Documentation of proposed values of occupational exposure limits (OELs)
Potassium bromate (V), (KBrO3) exists as white crystals, crystalline powder or granules. It is highly soluble in water, tasteless and odourless. Potassium bromate is a strong oxidizing agent. In the past it has been used...
Conditions of using numerical workers’ models while assessing direct hazards related to exposure to electromagnetic field
This article discusses the possibility of using numerical workers’ body models when as-sessing exposure to electromagnetic fields in testing compliance with the requirements of Directive 2013/35/EU. The requirements rel...
Ethyl acrylate. Determination in workplace air with GC-FID
The activity of the Interdepartmental Commission forMaximum Admissible Concentrations and Intensities for Agents Harmful to Health in the Working Environment in 2014–2016
In the third part of the National Programme “Improvement of safety and working condi-tions”, the Commission met at 10 sessions, during which the following items were discussed:– 35 documentations for recommended exposure...