... pharmaceutical, commodity inspection, scientific research, environmental protection and other fields. Product Features Can detect the type ... , acenaphthene, fluorene, methylenedioxy-phenanthrene, isobutyl methyl isopropyl benzene and the like. 3. Phenols, phenol, cresol, fluorophenol, ... offline print function; Built-in battery (optional), fully charged, can be used continuously for more than ...