Highlights I Determination of metals in cigarette smoke II On-site mercury analyzer III Hazardous gas monitoring

I By adding an impaction plate in a graphite furnace it is possible to separate and collect 6μm particles which are found in cigarette smoke. This allows for the quantitative detection of Cd, Cr, Pb and Mn in air in a direct fashion and quasi real time. It is important to monitor not only direct inhalation of cigarette smoke but also “second-hand” smoking by innocent by-standers. II Most Hg spills occur along gas pipelines owing to leaks, by accident or vandalism, on manometers operating with Hg. There are thousands of metering sites and so rapid field analysis is considered a technical necessity. A method has been developed using KI and I2 as extracting medium. The redissolved filtrate is measured by anodic stripping voltametry (ASV). Results in the range of 1 to 10,000ppm Hg in soil samples can be obtained on-site in less than an hour. III Hazardous gases (He, H2, Cl2) are produced in the process of semiconductor fabrication. For health and safety reasons three analytical techniques are proposed for use in cleanrooms to monitor chemicals. I Determination of metals in cigarette smoke