نتایج جستجو برای: environmental water sample analysis

تعداد نتایج: 3788726  

Journal: :Journal of AOAC International 2001
A Raksit S Johri

An analytical method for the determination of N-nitrosodimethylamine (N-NDMA) in environmental aqueous samples has been developed using isotope dilution gas chromatography/mass spectrometry in the selected ion monitoring mode (GC/MS-SIM). After deuterated N-nitrosodimethylamine (d6-N-NDMA) as surrogate standard was added to the samples, the analytes were extracted with methylene chloride, dried...

Ahad Tavasoli, Akram Hossein Nia Ali Akbar Abbasi, Hadi Memarian, Lotfollah Parsayi, Seyed Mohammad Tajbakhsh Zinat Komeh

The world has a long experience of using harvested rainwater from rooftop catchments in urbanized regions. There are also many studies about the technical, health, and environmental details of such systems. The gradual prevalence of rainwater harvesting systems in the country exposes a necessity to determine and define some guidelines and instructions for health and environmental considerations...

Objective: Water scarcity is a growing global problem and increasing population pressures, living standards and the growing demand for environmental quality have evoked all the governments to represent better solutions about water resources management. In addition, there are growing political ties for reducing water use in agriculture that follow enough environmental benefits and increase the w...

2018
Ramona Kuhn Jörg Böllmann Kathrin Krahl Isaac Mbir Bryant Marion Martienssen

The data presented in this article provide supporting information to the related research article "Comparison of ten different DNA extraction procedures with respect to their suitability for environmental samples" (Kuhn et al., 2017) [1]. In that article, we compared the suitability of ten selected DNA extraction methods based on DNA quality, purity, quantity and applicability to universal PCR....

2011
Cheryl A. Dingus Linda K. Teuschler Glenn E. Rice Jane Ellen Simmons Michael G. Narotsky

In complex mixture toxicology, there is growing emphasis on testing environmentally representative doses that improve the relevance of results for health risk assessment, but are typically much lower than those used in traditional toxicology studies. Traditional experimental designs with typical sample sizes may have insufficient statistical power to detect effects caused by environmentally rel...

Journal: :Applied and environmental microbiology 2004
Isabelle Villena Dominique Aubert Philippe Gomis Hubert Ferté Jean-Christophe Inglard Hélène Denis-Bisiaux Julie-Muriel Dondon Eric Pisano Naïma Ortis Jean-Michel Pinon

Several recent outbreaks of toxoplasmosis were related to drinking water. We propose a strategy for Toxoplasma oocyst detection as part of an approach to detecting multiple waterborne parasites, including Giardia and Cryptosporidium spp., by the U.S. Environmental Protection Agency method with the same sample. Water samples are filtered to recover Toxoplasma oocysts and purified on a sucrose de...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
میثم منتی زاده دانشجوی دکتری ترویج و آموزش کشاورزی، دانشگاه شیراز غلامحسین زمانی استاد دانشگاه شیراز عزت الله کرمی استاد دانشگاه شیراز

in recent years, degradation of environment (water and soil resources) by farmers has increase concerns about sustainability of agriculture. farmers’ behaviors affect conservation of these resources and play important role in sustainability of agriculture as well. shiraz county, like other parts of the country, suffers for degradation of soil and water resources. the aim of this study was to pr...

A simple andefficient hollow fiber-based method,viz magnetic solvent bar liquid-phasemicroextraction (MSB-LPME) combined with gas chromatography-flame ionization detection (GCFID)has been successfully developed for the trace determination of mononitrotoluenes (MNTs) innatural water samples. The analytes were extracted from sample solution to the organic solventimmobilize...

Journal: :Journal of environmental management 2007
Jie-Chung Lou Wei-Li Lee Jia-Yun Han

Two surveys of consumer satisfaction with drinking water conducted by Taiwan Water Supply Corp. are presented in this study. The study results show that although a lot of money was invested to modify traditional treatment processes, over 60% of local residents still avoided drinking tap water. Over half of the respondents felt that sample TT (from the traditional treatment process) was not a go...

Journal: :iranian journal of radiation research 0
m. malakootian environmental health engineering research center, department of environmental health, kerman university of medical sciences, kerman, iran h. salmani marvast environmental health engineering research center, department of environmental health, kerman university of medical sciences, kerman, iran a. negharestani department of advanced sciences and graduate studies university of kerman, kerman, iran f. iranmanesh environmental health engineering research center, department of environmental health, kerman university of medical sciences, kerman, iran

background: radioactive substances are water chemical contaminants. in this study, the concentration of radon was measured in drinking water supplies of taft villages (part of dehshir-baft fault located in central part of iran) and also shirkooh area with granite rocks (containing uranium). materials and methods: this cross sectional research was conducted in fall 2013 and winter 2014 on the so...

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