página 502

 
       
 


 

     página 502 Hulandes

                                                kromatografía di papel, praktiko
                                   
                           

                                    materialnan:    un pida papel di filter marka dor di un prenter.
                                                          dos pide papel di filter bashi
                                                          un pida papel otro (normal).
                                                          2 stef
                                                          kuater kùp
                                                          dos pipa
                                                          awa
                                                          20 ml di wasbenzin
                                                          matsilinder
                                                          teip

                                                           
                                    ehekushon:      

                                    1                     Marka un strepi horizontal kaminda e punto di ink ta. (mira pintura akibou)

                                                       


                                                            Korta e papel di filter ku ink di prenter pa bo hañ'é manera indiká den e pintura aki bou.

                                                                    


                                                            Korta e dos papel bashi na mesun tamayo ku e papel ariba.
                                                            Mara e papel ariba na un pida pipa horizontal. Uza pida teip. Mira e pintura abou.


                                                                            

                                                             Yena un kup ku 20 ml awa.
                                                             Kologa e papel den e kup manera indika aki bou.

                                                              
                   

                                    2             Ripiti henter e sekuensia pa e papel normal i papel di filter. Na posishon di
                                                   e puntonan di ink bo ta marka ku dos diferente stef.

                                    3             Ripiti e sekuensia ku papel di filter. Na luga di awa bo ta uza otro disolvente, 20 ml wasbenzine.

                                    4             Warda mas o ménos 25 minüt. Nota bo observashonnan.

                                    observashonnan:
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                                    konklushon:
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                                    konklushon si nos kompara dos diferente disolvente:
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