drinking water analyzer Articles
-
Caries affected by calcium and fluoride in drinking water and family income
Water quality and socioeconomics influence caries in populations. This study broadens previous studies on how caries is associated with fluoride and calcium in drinking water and with family income by quantifying the combined effect of the three independent variables. The effects of calcium and fluoride can be described as independent effects of the two ions or, alternatively, in the form of ...
-
Access to safe drinking water and human health: empirical evidence from rural Bhutan
Provision of safe drinking water is essential for the promotion of human well-being. This paper makes an attempt to examine the patterns of access to drinking water, identify and analyze the factors that influence households access to safe drinking water sources, and analyze factors determining the extent of households travel to fetch drinking water, and assess the effects of access to safe ...
-
Determination of micro and macro elements in waters with the ELAN DRC-e
The ability of reaction cell technology to reduce the effects of spectral interferences is well-known, but another, lesser-known capability also exists: extending the dynamic range. This is accomplished by adjusting the bandpass parameters with no gas in the cell. Because the bandpass parameters can be adjusted on a per-mass basis, sensitivity can be reduced on selected isotopes without affecting ...
-
Mold Odor Analysis Using a Purge and Trap Multimatrix Autosampler
Abstract Taste and odor are widely associated with drinking water quality. Musty odors, caused by compounds such as geosmin and 2-methylisoborneol (MIB), may lead consumers to believe their water is unsafe. These compounds are byproducts of the growth of blue-green algae and other microbes. Since consumers rely on taste and odor as primary indicators for water safety, water suppliers take steps ...
-
Volatile Organic Compounds in Every Day Food
Abstract Volatile Organic Compounds (VOCs) have been analyzed in drinking water and pharmaceuticals extensively in recent years. Now, VOCs in food products have became a major interest among researchers. Utilizing an Atomx automated VOC sample prep system in conjunction with a gas chromatograph-mass spectrometer (GC/MS) will allow for the determination of VOCs in food products. The automated ...
-
Fungi in biofilms of a drinking water network: occurrence, diversity and mycotoxins approach
Results showed that 75% of the analyzed samples in a drinking water network were positive for fungi, in a range of 1–3,000 CFU/mL. Identification resulted in nine species of fungi and four species of yeasts being listed: Bjerkandera, Penicillium, Paraconiothyrium, Paecilomyces, Debaryomyces, Rhodotorula and Cryptococcus. Although yeasts showed higher traceability than filamentous fungi, the ...
-
The distributions, removals and estrogenic effects of selected endocrine disrupting chemicals in two drinking water factories in China
The distributions and effects of 31 selected endocrine disrupting chemicals (EDCs) in two drinking water factories were analyzed in this study. The distributions of EDCs were analyzed by solid phase extraction (SPE) combined with liquid chromatography tandem mass spectrometry (LC-MS/MS). The concentrations of these EDCs were from lower than the LOD (limit of detection) to 23.13 ng L − 1 ...
-
WWEM-Day: Undercover WWEM Information
In Part 2 of our WWEM-Day installments we’re talking about our exciting undercover news… we have an updated model of one of our classic products about to launch! There will be a simplified design and less parts to make an already low maintenance product even better! This means greater accuracy, not to mention more ease and efficiency! Our new products will be focused on Drinking ...
-
Potential Drinking Water Contamination Analyzed
A comparison of more than 100 large US cities showed pollution from point and nonpoint sources Too often, surveys of water quality in the United States have been regionally inconsistent patchworks that neglect many unregulated contaminants. A granular study of potential source water contamination in the largest cities in the U.S. has been lacking. New research in the journal Nature, however, ...
-
Factors influencing householders' access to improved water in low-income urban areas of Accra, Ghana
We analysed householders' access to improved water for drinking and other domestic uses in five selected low-income urban areas of Accra, Ghana using a survey of 1,500 households. Our definitions of improved water were different from those suggested by the World Health Organization (WHO). The results revealed that only 4.4% of the respondents had access to improved drinking water ...
-
Meeting the US Environmental Protection Agency Drinking Water Requirements with a UV/Persulfate Analyzer
Abstract The rapid and precise measurement of organic carbon in trace levels of water is of interest to the pharmaceutical, drinking water and environmental industries where regulations restrict the amount of discharge or contamination. Total Organic Carbon (TOC) analysis is considered an effective indicator of organic contamination in water. Since the US EPA set limits on Disinfection ...
-
Best practices in regulating State-owned and municipal water utilities
The fundamental lesson that emerges from this survey of regulating state-owned and municipal water utilities in developing countries is that sector regulation has to be embedded in an adequate and consistent institutional framework in order to have a positive impact on performance. Sector regulation, by itself, is no guarantee of performance improvements in the drinking water supply and ...
-
Environmental governance, service quality and drinking water: a participatory diagnosis conducted through a water ombudsman
This study focuses mainly on the search for new-generation models of democracy based on the principles of governance and the quality of public drinking water services. We analyse the participatory initiatives implemented by the Argentinian government over the past twenty years and look at how these have led to alternative models for utility operators. The study describes users’ perceptions ...
-
River Monitoring
The monitoring of River water has impications not only on the environmental impacts of heavy metals but also upon the quality of drinking water. THis case study covers an analyser installed in a remote location using low voltage power supplies to suppliment the local mains power supply which cannot be relied ...
-
Magnesium in drinking water – a case for prevention?
Studies in many countries have demonstrated a relationship between drinking water mineral content and the risk of death in cardiovascular disease (CVD). Particularly strong relationships have been found for magnesium and it has been suggested that magnesium be added to drinking water. The aim of this article is to evaluate the validity of this suggestion by reviewing information on possible ...
-
Big business and the Amazon: protecting nature’s benefits
The Amazon rainforest boasts incomparable biodiversity– home to one in 10 of all known species— and plays a vital role in regional water supply and global climate regulation. Yet, it is also a profitable working forest, benefitting both local businesses and international corporations. Trying to reconcile the conservation and commercial roles of such biodiversity hotspots is no easy ...
-
The hidden urban tail-enders – drinking water supply as a common pool resource problem in Khorezm, Uzbekistan
In academic debates, drinking water supply is considered mainly to be either a public or an economic good, or something in between. Nevertheless, in situations of insufficient supply, the non-academic literature refers to common pool resource problems, in which certain uses of drinking water should be 'avoided' or even 'punished'. To highlight the importance of understanding drinking water supply ...
-
Water aggressiveness and hydrodynamic effects on the fibres release in asbestos-cement pipes for public water supply
SEM and TEM analyses of drinking water samples, collected during three years (1988, 1989 and 1990) from some Asbestos-Cement (A/C) distribution systems in Veneto Region (Italy), have shown that the release of fibres, with length greater than 10 μm, is, on average, quite low. Moreover, the asbestos concentration is not strictly dependent on Aggressiveness Index (A.I.) in the range ...
-
An Evaluation of Hydrogen as a Carrier Gas in Gas Chromatography: FREE Whitepaper
Anthias Consulting has collaboratively written an application note on the use of hydrogen as a carrier gasfor the analysis and detection of pesticides in drinking water. The paper evaluates the use of an on-site generated hydrogen carrier gas vs. helium as the carrier gas for USEPA Method 551.1, which analyses the concentration of pesticides in drinking water by liquid-liquid extraction followed ...
-
Non toxic reagents for SEIBOLD online-analyser for heavy metals
Reagents and chemistry used with SEIBOLD COMPOSER Analysers are free from toxic compounds. Our "Green Thumb" project started in 2006 and delivered its first products in 2008. In 2011 the complete range of SEIBOLD COMPOSER Analyser for Heavy Metals has been introduced to the market. SEIBOLD's Analyser series COMPOSER is based on spectrophotometric technology. Measured concentration is a function ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you