Download or read book Methodology for the Accurate Quantification of Nine Haloacetic Acids in Drinking Water and Application to Real Water Systems written by Katherine S. Brophy and published by . This book was released on 1999 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Novel Method for the Analysis of Haloacetic Acids in Drinking Water written by Li Zhang and published by International Water Assn. This book was released on 2005-01-01 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research was to develop a new approach for HAA analysis that was accurate, reproducible, sufficiently sensitive, and relatively safe and simple to perform. This method involved the use a CE ion analyzer for separation and detection of HAAs. Preliminary results from our laboratory using distilled and deionized water spiked with HAAs indicated that this approach was capable of separating and detecting all nine chlorinated and brominated HAAs. The method detection limit (MDL) for monochloroacetic acid measured in our laboratory was 32 ppb using a bubble cell without any sample pretreatment (i.e. direct aqueous sample injection). Given this unacceptably high MDL, more work was needed to fully develop and test the CE-based method especially with regard to improving method sensitivity.

Download or read book Method 552 3 determination of haloacetic acids and dalapon in drinking water by liquidliquid microextraction derivatization and gas chromatography with electron capture detection written by and published by DIANE Publishing. This book was released on with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Nine Haloacetic Acids in Finished Drinking Water written by Hossein Pourmoghaddas and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applying Post Column Reaction Ion Chromatography and Other Techniques to Analysis of Haloacetic Acids in Drinking Water and Sodium Hypochlorite Solutions written by Christina Michelle Henson and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Haloacetic acids (HAAs) are a class of chlorinated disinfection by-products produces during the chlorination of drinking water. HAAs have potentially adverse health effects and are regulated by the USEPA at a maximum contaminant level of 0.060 mg L-1. Post-column reaction-ion chromatography with nicotinamide fluorescence (PCR-IC) was developed for analysis of HAAs in drinking water. The PCR-IC analyzer has two forms of selectivity toward the HAAs, and originally had method detection limit (MDL) values between 1 - 10 µg L-1.A sequential injection analysis (SIA) module has been developed for fully automated preconcentration of HAAs prior to analysis by PCR-IC--the SIA-PCR-IC. Preconcentration is achieved by solid phase extraction with a resin designed for environmental analysis. Optimization of method parameters was carried out, along with detailed MDL, accuracy, precision, and linearity studies; individual MDL values were all less than 1 µg L-1. Side-by-side comparison studies of HAAs in real-world drinking water samples were also performed, comparing the optimized SIA-PCR-IC method with USEPA Method 552.3. Trace levels of HAAs detected in samples are reported, and bias values calculated between the two methods are less than 10 µg L-1 for eight of the nine individual HAAs.In addition to studies focused on their formation in drinking water, HAAs research has recently branched out to investigate their presence in hypochlorite solutions used for drinking water disinfection. In response to previous work resulting in the detection of HAAs in over 30 different samples of hypochlorite, the PCR-IC analyzer and USEPA 552.3 were utilized to develop and apply a model for determining the contribution of HAAs detected in hypochlorite to those measured in finished water--the Dose-Dilution Model. Application of this model to eight different utilities resulted in an average contribution of about 40%.In order to gain more knowledge about the behavior of HAAs detected in hypochlorite solutions, studies were developed to monitor their formation and stability using the PCR-IC; short- and long-term storage temperature conditions were varied, while monitoring HAAs. Results suggest that HAAs formation occurs immediately following hypochlorite generation, while degradation was observed over time at various rates depending on strength and storage temperature. .

Download or read book Haloacetic Acids written by Li Zhang and published by . This book was released on 2004 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for the Determination of Organic Compounds in Drinking Water written by and published by . This book was released on 1990 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Method 552 written by J. W. Hodgeson and published by . This book was released on 1990 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Haloacetic Acids in Drinking Water by Liquid liquid Extraction Derivatization and Gas Chromatography with Electron Capture Detection written by Jimmie W. Hodgeson and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Haloacetic Acids and Dalapon in Drinking Water by Ion exchange Liquid solid Extraction and Gas Chromatography with an Electron Capture Detector written by Jimmie W. Hodgeson and published by . This book was released on 1992 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for the Determination of Organic Compounds in Drinking Water written by and published by . This book was released on 1991 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Method 515 4 determination of chlorinated acids in drinking water by liquidliquid microextraction derivatization and fast gas chromatography with electron capture detection written by and published by DIANE Publishing. This book was released on 1996 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Method 552 3 written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemistry and Industry written by and published by . This book was released on 2009 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simplified Methods for On line Monitoring of Haloacetic Acid Concentrations at the Single Ug L Level in Drinking Water Distribution Systems Using Ion Chromatography Based Analyzers written by Paul Steven Simone and published by . This book was released on 2008 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analyzing and Removing Haloacetic Acids in Drinking Water written by Haojiang Zhou and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for the Determination of Organic Compounds in Drinking Water written by and published by . This book was released on 1995 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: