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Displaying 1-3 of 3 results for Tag: Tap water
TN24: Determination of Chromium by Ion Chromatography
Instrument Type: ICThree methods are presented here for the determination of Chromium in various matrices. Method A utilizes a postcolumn reaction (PCR) with a color reagent. It is a very selective and sensitive method, allowing determination of Cr(III) & Cr(VI) at ppb levels. Method B also utilizes a PCR, but determines Cr (VI) only. It is used for industrial waste waters, analyzing samples that have undergone standard oxidation. Method C allows the determination of inorganic anions in addition to chromate by chemically suppressed conductivity. Please refer to AN1116, AU144, AU165 and AU179 for updated methods.
Analysis of perfluoro-octanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) in tap water using reversed-phase HPLC with suppressed conductivity detection
Instrument Type: HPLCThe separation of perfluoro-octanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) in tap water was performed on a Thermo Scientific Acclaim PolarAdvantage II (PA2) HPLC column, with on-line sample concentration and suppressed conductivity detection. Chromatogram A is Sunnyvale tap water spiked with PFOA and PFOS and chromatogram B is a control.
Sensitive and Rapid Determination of Polycyclic Aromatic Hydrocarbons in Tap Water
Instrument Type: HPLCThis method describes an on-line SPE HPLC method with UV absorbance and fluorescence detections for rapid and sensitive determination of 20 PAHs in tap water. The determination is performed on a Thermo Scientific UltiMate 3000 Dual RSLC system combined with a Thermo Scientific Hypersil Green PAH analytical column. Reduced MDLs for UV and fluorescence detection, enabled by on-line SPE using the Thermo Scientific Dionex Acclaim PA2 column, provide a convenient method for determining these compounds in drinking and environmental waters using HPLC.
