Analytical Chemistry: An IntroductionSaunders College Pub., 1994 - 675 pagine |
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Pagina 497
... column . 26C THE EFFICIENCY OF CHROMATOGRAPHIC COLUMNS The efficiency of a chromatographic column refers to the amount of band broaden- ing that occurs when a compound passes through the column . Before defining column efficiency in ...
... column . 26C THE EFFICIENCY OF CHROMATOGRAPHIC COLUMNS The efficiency of a chromatographic column refers to the amount of band broaden- ing that occurs when a compound passes through the column . Before defining column efficiency in ...
Pagina 520
... column . Here , eight compo- nents of diverse type are separated in about 15 s . The column is 4 cm in length and has an inside diameter of 4 mm ; it is packed with 3 um particles . Guard Columns Often , a short guard column is ...
... column . Here , eight compo- nents of diverse type are separated in about 15 s . The column is 4 cm in length and has an inside diameter of 4 mm ; it is packed with 3 um particles . Guard Columns Often , a short guard column is ...
Pagina 612
... Columns A typical ion - exchange column is a cylinder 25 to 40 cm in length and 1 to 1.5 cm in diameter . A stopcock at the lower end permits adjustment of liquid flow through the column . A buret makes a convenient column . It is ...
... Columns A typical ion - exchange column is a cylinder 25 to 40 cm in length and 1 to 1.5 cm in diameter . A stopcock at the lower end permits adjustment of liquid flow through the column . A buret makes a convenient column . It is ...
Parole e frasi comuni
absorbance absorption acid activity added addition amount analysis analyte applications approximately atomic base becomes buffer Calculate carbonate cations cause cell charge chemical chloride chromatography color column complex compounds concentration consider constant containing curve described determination difference dilute dissociation dissolved EDTA effect electrode electrode potential electrolyte end point Equation equilibrium equivalence error example excess expression Figure filter formation give given glass H₂O H3O+ hydrogen hydroxide increase indicator involves less liquid mass mean measurements metal method mmol molar NaOH needed Note obtained occurs organic oxidation particles positive potassium potential precipitate prepared quantity radiation range reaction reagent reduced reference relative salt sample shown shows silver sodium solid solubility solution species standard standard deviation strong surface Table temperature tion titration types volume weighed write