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With the ultimate goal of providing an on-site early-alert system for drinking water contamination by benzene, we have further developed our portable aqueous benzene sensor to reach sensitivity below the drinking water regulatory levels (5 ppb(v/v) in America). Prior to the UV detection, we added a new concentration stage composed of a moisture exchanger and a cell filled with zeolite adsorbent. Despite...
A new and easy-to-use portable sensor dedicated to the detection of benzene diluted in aqueous solution is presented. By connecting a bubbling device to a high efficiency UV detection cell, previously developed for a BTX air monitoring system, we could achieve a detection limit down to 100 ppb with a S/N of about 3. This sensitivity conforms to wastewater regulations in both America and Japan (resp...
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