Determination of Trace Amout of Non-ionic Suface Active Reagent by HPLC with Micro-FTIR using Pin-point Condensation Technique. High Sensitivity Detection and HPLC Separetion Method for Polyethylene Glycol Alkyl Ether and Polythylene Glycol Alkyphenyl Eth
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POE non-ionic surfacants were separeted by normal (nonreversed) -phase high-performance liquid chromatography (HPLC) using ODS column and acetonitrile as the elutant. Polyethylene glycol alkyl ether (AE) and polyethylene glycol alkylphenyl ether (APE) were determined by HPLC with RI detector (below 100ppm) and UV detector (below 5ppm) .<BR>Pin-point condensation technique using perfluorated polymer film on SUS mirror was applied to solvents elutcd from HPLC. Spectra of residua were measured by microscope/FTIR in the reflection mode. Inpurities ofacetonitrile were removed by ODS column which is located between pump and sample injection port. In this method, AE and APE in the concentrations below lppm could be measured.
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