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Displaying 1-5 of 90 results for Tag: Water Analysis
AN72333: Determination of Adsorbable Organic Halogen in Wastewater using a Combustion Ion Chromatography SystemInstrument Type: IC
This application note demonstrates that AOX can be precisely and accurately determined in wastewater using combustion ion chromatography. Analysis was automated using the Mitsubishi AQF–2100H system in combination with the Dionex Integrion HPIC system with a Dionex IonPac AS18-4μm column.
AN72209: Determination of Trace Concentrations of Oxyhalides and Bromide in Municipal and Bottled WatersInstrument Type: IC
To demonstrate that oxyhalides and bromide can be successfully determined at concentrations required for regulatory standards and guidelines using a Thermo Scientific™ Dionex™ ion chromatography system equipped with a Thermo Scientific™ Dionex™ IonPac™ AS23-4μm column,Thermo Scientific™ Dionex™ CRD 300 Carbonate Removal Device, and a Thermo Scientific™ Dionex™ AERS™ 500 Carbonate Anion Electrolytically Regenerated Suppressor.
Trace analysis of pharmaceuticals and organic contaminants in waterInstrument Type: LCMSMS
We present the reliable and accurate quantitative analysis of contaminants at the pg/mL level in drinking water using the Thermo Scientific EQuan MAX Plus LC-MS system coupled to the Thermo Scientific TSQ Endura triple quadrupole mass spectrometer. Excellent reproducibility was shown for the target compounds in tap water using 1 mL injections at 0.37× maximum effluent concentration.
Quantitative Comparison of Hormones in Drinking Water Between MS/MS and Orbitrap TechnologyInstrument Type: LCMSMS
We present a a liquid chromatography – high-resolution, accurate mass (LC-HRAM) methodology using Orbitrap technology as a sensitive, accurate, and reliable alternative to the use of triple quadrupole mass spectrometers in the quantification of hormones in drinking water according to EPA guidelines. By using different scanning modes within the Q Exactive MS, quantitation on precursor ions and identification of fragments ions are possible. These scanning modes can possibly be used for compliance monitoring in place of a triple quadrupole MS.
AN454: Analysis of Haloacetic Acids in Drinking Water by IC-MS/MSInstrument Type: ICMS
Haloacetic acids (HAA) are disinfection byproducts when water is chlorinated to remove microbial content. The chlorine reacts with naturally occurring organic and inorganic matter in the water, such as decaying vegetation, to produce by-products that include HAAs. Five of the nine HAA species are currently regulated by the EPA as there might be an increased risk of cancer associated with long-term consumption of water containing levels of HAAs that exceed 0.6 mg/L. We describe an IC-MSMS method that provides separation of all nine HAAs addressed in the EPA methods (552.1, 552.2, and 552.3).