A team of Johns Hopkins engineers has discovered a method to filter out a class of harmful industrial "forever chemicals" commonly found in the country's drinking water. Known as forever chemicals because they last thousands of years, per- and polyfluoroalkyl substances, commonly known as PFAS,...
In the coming years, estimates of the glomerular filtration rate (GFR) may replace the measurement of serum creatinine as the primary tool for the assessme... LA Stevens,AS Levey 被引量: 13发表: 2014年 Using diagnostic assessment to help teachers understand the chemistry of the lead-acid bat...
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However, through effective point-of-use filtration, they can be greatly reduced. Point-of-use filtration has traditionally focused on selecting a filter membrane at a specific pore size that is compatible with the resist chemistry being utilized in the process. The research hereby discussed ...
In this study, the methods developed to determine the degree of crystallinity of polymers by X-ray diffraction (XRD) until the date which this study was do
Techniques of ecological engineering are given with examples that include maintaining biodiversity with multiple seeding, experimental mesocosms, enclosed systems with people like Biosphere 2, wetland filtration of heavy metals, overgrowth and climax ecosystems, longitudinal succession, exotics, domestication ...
Novel techniques of membrane filtration for the enrichment and determination of trace components in water are reviewed from an aspect of downsizing in analytical chemistry. One method is based on the conversion of a component in water to a hydrophobic species by a chemical reaction, and its retenti...
Whereas the virus extraction from the filtration process using respective filters (when used in a similar way as used in airborne PM sampling) will dehydrate viruses (Verreault et al., 2008) and deteriorate their infectivity. The sample handling is also found to be different for airborne PM and...
They were then filtered via vacuum filtration and dried at 60 °C. The sample was subsequently soaked in an aqueous ferrous chloride solution, filtered, washed, and processed similarly. The positive effect of carboxymethyl cellulose was evident in the adsorption capacity of approximately 4.14 mg g...
This, furthermore, implies the necessity of biological filtration (on active carbon), which removes biodegradable organic carbon (BDOC) from water. In order both to provide greater ozonation process efficiency and to optimise economic efficiency, new methods of advanced oxidation have been investigated...