A5013338012- Water Treatment and Disinfection
- Advanced Chemical Sensor Technologies
- Analytical chemistry methods development
- Water Quality Monitoring and Analysis
- Analytical Chemistry and Sensors
- Environmental Chemistry and Analysis
- Water Systems and Optimization
- Water Quality Monitoring Technologies
- Metal-Catalyzed Oxygenation Mechanisms
- CO2 Reduction Techniques and Catalysts
- Estrogen and related hormone effects
- Advanced oxidation water treatment
- Chemical Analysis and Environmental Impact
- Pharmacogenetics and Drug Metabolism
- Metalloenzymes and iron-sulfur proteins
- CCD and CMOS Imaging Sensors
- Inflammatory mediators and NSAID effects
- 3D Printing in Biomedical Research
- Fecal contamination and water quality
- Urban Stormwater Management Solutions
- Steroid Chemistry and Biochemistry
- Additive Manufacturing and 3D Printing Technologies
- Chemical Reactions and Isotopes
- Biosensors and Analytical Detection
- Advanced Photocatalysis Techniques
University of Memphis
2006-2025
Foundation Instruments (United States)
2015-2025
Arkansas State University
2006
Miami University
1999-2000
Fluorescence methods have distinct advantages over traditional absorbance including greater sensitivity, improved detection limits, and selectivity. Unfortunately, the cost of typical, commercially available fluorescence detectors is beyond what some industrial research laboratories can afford or maintain. Having a relatively low-cost, simple to use, high-sensitivity detector would be very beneficial. The aim this develop 3D printed flow through that does not require complex optics an...
On the sunny side: A homogeneous system for H2 production and hydrocarbon oxidation was developed in absence of any sacrificial reagent. This consists [Ru(TPA)(H2O)2]2+ [Fe3(CO)12] as catalysts [Ru(bpy)3]2+ [Ir(bpy)(ppy)2]+ photosensitizers (PS). Water is oxygen source well formation (see picture; Sub=organic substrate). Detailed facts importance to specialist readers are published ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They made available...
Bromate ion (BrO 3 – ) in drinking water is a concern to utilities because of its toxicity—but also new regulations have been promulgated lower residual levels BrO finished water. This study evaluated sulfite (SO 2– and reduced iron (Fe 2+ as potential removal agents for over wide pH range. The experimental rate law using SO shows that the decreases with increasing pH. Fe increases
Sonnige Aussichten: Ein homogenes System zur Wasserstoffproduktion und Kohlenwasserstoffoxidation, das aus den Katalysatoren [Ru(TPA)(H2O)2]2+ [Fe3(CO)12] Photosensibilisatoren [Ru(bpy)3]2+ and [Ir(bpy)(ppy)2]+ besteht, wurde ohne zusätzlichen Elektronendonor/-akzeptor entwickelt. Das Wasser ist sowohl die Sauerstoff- als auch Wasserstoffquelle (siehe Bild; Sub=organisches Substrat).
The electrolysis of salt brine solutions by onsite generators produces chlorine (free available [FAC = Cl 2 , HOCl, and OCl – ]) at concentrations ranging from 200 to 1,000 mg/L. There is some speculation that the also dioxide (ClO ) ozone (O 3 ). analytical methods frequently cited for measuring ClO O in anolyte liquors following are DPD indigotrisulfonate methods. These procedures routinely used measure drinking water residuals finished water. However, when components cell liquors,...
A post-column reaction-ion chromatography analyzer (PCR-IC) with automated internal standardization (IS) has been optimized to determine nine haloacetic acid (HAAs) species in drinking water while operating near real-time a one hour analysis time. The IS-PCR-IC method requires minimal sample preparation that consists of passing samples through cartridges remove anions and introducing the pretreated into on-line channel instrumentation. Two sets have analyzed detection limit (MDL), accuracy...
CYP1B1 and CYP19 (aromatase) have been shown to be expressed in breast tumors. Both enzymes are efficient estrogen hydroxylases, indicating the potential for overlapping substrate inhibitor specificity. We measured inhibition properties of aromatase inhibitors (AIs) against CYP1B1-catalyzed hydroxylation 17β-estradiol (E2) determine whether affects disposition AIs. In addition, we estimated frequency coexpression these tumor epithelium. Immunohistochemical analyses a panel 29 cases invasive...
Abstract Salt brine electrolysis systems produce a solution that can contain up to 400 mg/L free available chlorine (FAC). These are very appealing small utilities. The scientific literature contains numerous reports from utilities using citing enhanced microbiological kill rates and lower THM levels than normally would be expected by disinfection with FAC alone. Researchers have speculated the presence of minority oxidant species (ozone and/or dioxide) responsible for observed increased...
An automated, on-site trihalomethanes concentration data set from a conventional water treatment plant was used to optimize powdered activated carbon and pre-chlorination doses. The with commonly monitored quality parameters improve an empirical model of formation. A calibrated predict concentrations the following year. agreement between models measurements evaluated. original predicted within ~10 μg·L−1 measurement. Calibration improved prediction by factor three five times better than...
Liquid delivery and endpoint determination during titrations may be problematic if an analyst does not have adequate training or formal education. This can lead to issues with method accuracy precision. work is focused on the development of a simple, low-cost, automated system capable performing potentiometric push button. A single-board computer (Raspberry Pi), stepper motor-based syringe pump, commercially available pH sensor circuit board were primary components used construct...