title: Evaluation of disposable cartridges for trace enrichment from aqueous solutions.
abstract: Selected aromatic hydrocarbons, phthalate esters, and food, drug and cosmetic (FD&C) dyes are isolated from aqueous solutions with Chrom-Prep PRP-1 and Sep-Pak C18 cartridges. The Chrom-Prep cartridges demonstrate greater adsorption capacity for model aromatic hydrocarbons and phthalate esters than Sep-Pak C18 cartridges; however, the latter exhibits greater capacity for the FD&C dyes, which have breakthrough volumes that are a function of pH. Both cartridge types show a small amount of analyte leakage during the trace enrichment step, which is measured by monitoring the cartridge effluents for the presence of 14C-labeled solute. Two PRP-1 cartridges connected in tandem reduce the amount of activity in the effluent by approximately one half.
authors: Physical Sciences Department, Southeastern Oklahoma State University, Durant 74701.
authors: J L
authors: JL
authors: Robinson
authors: J
authors: J
authors: John
authors: A I
authors: AI
authors: Safa
authors: K A
authors: KA
authors: Kirkes
authors: P E
authors: PE
authors: Griffith
mesh_terms: D001564:Benzo(a)pyrene / Q000032:analysis; D002845:Chromatography / Q000295:instrumentation*; D004396:Coloring Agents / Q000032:analysis; D003358:Cosmetics / Q000032:analysis; D005069:Evaluation Studies as Topic; D005505:Food Coloring Agents / Q000032:analysis; D006838:Hydrocarbons / Q000032:analysis; D009281:Naphthalenes / Q000032:analysis; D010795:Phthalic Acids / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet; D014050:Toluene / Q000032:analysis; D014867:Water / Q000032:analysis
chemical_list: D004396:Coloring Agents; D003358:Cosmetics; D005505:Food Coloring Agents; D006838:Hydrocarbons; D009281:Naphthalenes; D010795:Phthalic Acids; D014867:Water; D001564:Benzo(a)pyrene; D014050:Toluene