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CPC - G01N - 15.04.2013 - page 2G01N 1/125 . . . . { adapted for sampling molten metals }G01N 1/14 . . . Suction devices, e.g. pumpsEjector devicesG01N 1/1409 . . . . { adapted for sampling molten metals }G01N 1/16 . . . with provision for intake at several levels { G01N 1/2035 } ( G01N 1/12 , G01N1/14 take precedence )G01N 1/18 . . . with provision for splitting samples into portions ( G01N 1/12 , G01N 1/14 takeprecedence; fraction-collection apparatus for chromatography B01D 15/08 )G01N 1/20 . . . for flowing or falling materials { G01N 1/2035 } ( G01N 1/12 , G01N 1/14 takeprecedence )G01N 1/2035 . . . . { by deviating part of a fluid stream, e.g. by drawing-off or tapping }G01N 1/2042 . . . . . { using a piston actuated by the pressure of the liquid to be sampled }G01N 1/22 . . in the gaseous state { ( specially adapted for biological material G01N 33/497 ;measuring breath flow A61B 5/087 ) }G01N 1/2202 . . . { involving separation of sample components during sampling }G01N 1/2205 . . . . { with filters }G01N 1/2208 . . . . { with impactors }G01N 1/2211 . . . . { with cyclones }G01N 1/2214 . . . . { by sorption }G01N 1/2226 . . . { Sampling from a closed space, e.g. food package, head space }G01N 1/2247 . . . { Sampling from a flowing stream of gas }G01N 1/2252 . . . . { in a vehicle exhaust }G01N 1/2258 . . . . { in a stack or chimney }G01N 1/2273 . . . { Atmospheric sampling }G01N 1/2294 . . . { Sampling soil gases or the like }G01N 1/24 . . . Suction devices { ( G01N 1/22 to G01N 1/2294 take precedence ) }G01N 1/26 . . . with provision for intake from several spacesG01N 1/28 . Preparing specimens for investigation { including physical details of (bio-)chemicalmethods covered elsewhere, e.g. G01N 33/50 , C12Q } ( mounting specimens onmicroscopic slides G02B 21/34 ; means for supporting the objects or the materials tobe analysed in electron microscopes H01J 37/20 ; { laboratory gas handling apparatusB01L 5/00 } )G01N 1/2806 . . { Means for preparing replicas of specimens, e.g. for microscopal analysis }G01N 1/2813 . . { Producing thin layers of samples on a substrate, e.g. smearing, spinning-on (G01N 1/30 takes precedence ) }G01N 1/2853 . . { Shadowing samples }G01N 1/286 . . { involving mechanical work, e.g. chopping, disintegrating, compacting,homogenising ( microtomes G01N 1/06 ; pulverising in general B02C ; mixing ingeneral B01F ) }G01N 1/30 . . StainingImpregnating { Fixation; Dehydration; Multistep processes for preparing samples oftissue, cell or nucleic acid material and the like for analysis }G01N 1/31 . . . Apparatus thereforG01N 1/312 . . . . { for samples mounted on planar substrates }G01N 1/32 . . Polishing