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Displaying 1-2 of 2 results for Tag: Online concentration
Analysis of Sulfonamides in River Water using EQuan, an Online Concentration Analysis System
Instrument Type: LCMSMSSulfonamides are used widely as anti-inflammatory medications for humans and livestock, and have recently become compounds of interest to regulatory agencies worldwide. Triple stage quadrupole LC-MS systems are often used for highly sensitive quantitative analyses of environmental pollutants. Performance of the LC-MS and sample pre-treatment are 2 critical factors that determine efficiency and accuracy in detection of low concentrations of pollutants in environmental samples. We describe a method for the quantitative analysis of sulfonamide antibiotics using EQuan.
Fast and Accurate Determination of Algal Toxins in Water Using Online Preconcentration and UHPLC-Orbitrap Mass Spectrometry
Instrument Type: LCMSMSWhen the density of the colonies of Microcystis and Nodularia cyanobacteria surpass a certain level, they produce hepatotoxic substances called microcystins and nodularins, respectively,2 while Anabaena and Apha-zinomenon are known to produce a neurotoxin called anatoxin. We describe a column-switching technique based on online preconcentration and high-resolution, full-scan Thermo Scientific™ Orbitrap™ mass spectrometry to obtain fast and accurate results for the determination of algal toxins in drinking water.
