نتایج جستجو برای: environmental water samples

تعداد نتایج: 1237395  

Journal: :International Journal of Environmental Research and Public Health 2021

Homayon Ahmad Panahi Mahboobeh Manoochehri Meghdad Karimi

A new Pb(II) imprinted mercapto functionalized Montmorillonite was synthesize by an easy one step reaction by combining a surface imprinting technique for selective phase extraction of Pb(II) prior to its determinations by flame atomic absorption spectroscopy. The modified sorbent was characterized by FTIR and studied for preconcentration and determination of Pb(II) in natural water samples. Th...

2014
J R Anoop Raj

In spite of widespread usage of perchlorate (ClO4 ) for different applications in India, the ClO4 being an environmental pollutant a complete survey study has not been reported yet. Present study investigates the occurrences of ClO4 in the drinking water, ground water, surface water and effluent water from various parts of south India. Water samples were collected from Ambattur, Bangalore, Chen...

2017
Lesley Maurice Bilung Ahmad Syatir Tahar Nur Emyliana Yunos Kasing Apun Yvonne Ai-Lian Lim Elexson Nillian Hashimatul Fatma Hashim

Cryptosporidiosis and cyclosporiasis are caused by waterborne coccidian protozoan parasites of the genera Cryptosporidium and Cyclospora, respectively. This study was conducted to detect Cryptosporidium and Cyclospora oocysts from environmental water abstracted by drinking water treatment plants and recreational activities in Sarawak, Malaysia. Water samples (12 each) were collected from Sungai...

2003
M du Preez J Theron

A rapid and sensitive assay was developed for the detection of low numbers of viable Vibrio cholerae and Shigella spp. cells in environmental and drinking water samples. Water samples were filtered, and the filters were enriched in a non-selective medium. The enrichment cultures were prepared for polymerase chain reactions (PCR) by a rapid and simple DNA extraction procedure consisting of boili...

Introduction: The protozoan parasite, Cryptosporidium Spp., widely spreads in both raw and drinking waters. It is the causative agents of waterborne diarrhea and gastroenteritis in the world. In the present study, a molecular assay was used for the detection and quantification of Cryptosporidium oocysts in environmental water samples. Materials and methods: Thirty surface water samples wer...

Journal: :آب و خاک 0
محمد موحدان نادر عباسی مجید کرامتی

abstract wind erosion of soils and suspended particles in iran is one of the serious environmental and agricultural problems which affect agricultural lands, water reservoirs, irrigation canals, drains and etc. therefore wind erosion control needs attention specially in arid and semi-arid regions. although in recent years, some polymeric materials have been used for improvement of structural st...

Journal: :iranian journal of parasitology 0
mr mahmoudi department of parasitology and mycology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran and fasciolosis & parasitic disease center research, guilan university of medical sciences, rasht, iran and cellular and molecular biology research center, shahid beheshti university of medical sciences, tehran, iran k ashrafi fasciolosis & parasitic disease center research, guilan university of medical sciences, rasht, iran h abedinzadeh tehran province water & wastewater (tpww), tehran, iran f tahvildar-bideruni department of parasitology and mycology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran a haghighi department of parasitology and mycology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran m bandehpour cellular and molecular biology research center, shahid beheshti university of medical sciences, tehran, iran and department of biotechnology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran

background : the protozoan parasites cryptosporidium spp. and giardia are known to occur widely in both raw and drinking waters. they are two of the causative agents of waterborne out-breaks of gastroenteritis throughout the world. in the present study, a pcr assay and fa were developed for detection of cryptosporidium oocysts and giardia cyst in environmental samples. methods : we have detecte...

2013
Hodon Ryu Michael Henson John Griffith Denene Blackwood Rachel Noble Jorge Santo Domingo

AbstrAct The detection of environmental enterococci has primarily been determined using culture-based techniques that might exclude some enterococci species as well as those that are nonculturable. To address this, the relative abundance of enterococci was examined by challenging fecal and water samples against a currently available genus-specific assay (Entero1). To determine the diversity of ...

Journal: :Applied and environmental microbiology 2013
Hodon Ryu Michael Henson Michael Elk Carlos Toledo-Hernandez John Griffith Denene Blackwood Rachel Noble Michèle Gourmelon Susan Glassmeyer Jorge W Santo Domingo

The detection of environmental enterococci has been determined primarily by using culture-based techniques that might exclude some enterococcal species as well as those that are nonculturable. To address this, the relative abundances of enterococci were examined by challenging fecal and water samples against a currently available genus-specific assay (Entero1). To determine the diversity of ent...

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