Physical Sciences and Mathematics Commons^™

Online Solid Phase Extraction Liquid Chromatography Tandem Mass Spectrometry (Spe-Lc-Ms/Ms) Method For The Determination Of Sucralose In Reclaimed And Drinking Waters And Its Photo Degradation In Natural Waters From South Florida, Sudha Rani Butchu, Natalia Quinete, Venkata R. Panditi, Piero R. Gardinali

Department of Chemistry and Biochemistry

Background

Sucralose has gained popularity as a low calorie artificial sweetener worldwide. Due to its high stability and persistence, sucralose has shown widespread occurrence in environmental waters, at concentrations that could reach up to several μg/L. Previous studies have used time consuming sample preparation methods (offline solid phase extraction/derivatization) or methods with rather high detection limits (direct injection) for sucralose analysis. This study described a faster and sensitive analytical method for the determination of sucralose in environmental samples.

Results

An online SPE-LC–MS/MS method was developed, being capable to quantify sucralose in 12 minutes using only 10 mL of sample, with …

Assessment Of The Occurrence And Potential Risks Of Antibiotics And Their Metabolites In South Florida Waters Using Liquid Chromatography Tandem Mass Spectrometry, Venkata Reddy Panditi

FIU Electronic Theses and Dissertations

An automated on-line SPE-LC-MS/MS method was developed for the quantitation of multiple classes of antibiotics in environmental waters. High sensitivity in the low ng/L range was accomplished by using large volume injections with 10-mL of sample. Positive confirmation of analytes was achieved using two selected reaction monitoring (SRM) transitions per antibiotic and quantitation was performed using an internal standard approach. Samples were extracted using online solid phase extraction, then using column switching technique; extracted samples were immediately passed through liquid chromatography and analyzed by tandem mass spectrometry. The total run time per each sample was 20 min. The statistically calculated …

Water Quality Monitoring Program For Bermuda's Coastal Resources Final Report, Henry O. Briceño, Joseph N. Boyer

SERC Research Reports

No abstract provided.