Highly sensitive and selective fluorescent assay for quantitative detection of divalent copper ion in environmental water samples

2011 ◽  
Vol 3 (9) ◽  
pp. 2102 ◽  
Author(s):  
Haiyan Cao ◽  
Wenbing Shi ◽  
Jianxin Xie ◽  
Yuming Huang
Keyword(s):  
Water Samples ◽  
Copper Ion ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Quantitative Detection ◽  
Divalent Copper ◽  
Fluorescent Assay ◽  
Highly Sensitive

A SWCNT based aptasensor system for antibiotic oxytetracycline detection in water samples

2019 ◽  
Vol 11 (20) ◽  
pp. 2692-2699 ◽  
Author(s):  
Nimet Yildirim-Tirgil ◽  
Jinyoung Lee ◽  
Hanchul Cho ◽  
HeaYeon Lee ◽  
Sivasubramanian Somu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Water Samples ◽  
Single Walled Carbon Nanotubes ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Single Walled Carbon ◽  
Highly Sensitive ◽  
Walled Carbon Nanotubes

A simple and highly sensitive aptamer-based single walled carbon nanotubes (SWCNTs) biosensor for fast and specific oxytetracycline detection in environmental water samples.

An expeditious method for the ultra-level chemosensing of uranyl ions

2020 ◽  
Vol 12 (8) ◽  
pp. 1070-1076
Author(s):  
Vishaka V. Halali ◽  
R. Geetha Balakrishna
Keyword(s):  
Charge Transfer ◽  
Water Samples ◽  
Intramolecular Charge Transfer ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Quantitative Detection ◽  
Uranyl Ions ◽  
Qualitative And Quantitative ◽  
Colorimetric Chemosensor ◽  
Trace Concentrations

In this study, a new colorimetric chemosensor based on intramolecular charge transfer was designed for the qualitative and quantitative detection of uranyl ions at trace concentrations in environmental water samples.

Two novel zeolitic imidazolate frameworks (ZIFs) as sorbents for solid-phase extraction (SPE) of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples

The Analyst ◽  
2014 ◽  
Vol 139 (22) ◽  
pp. 5818-5826 ◽  
Author(s):  
Huiping Hu ◽  
Shengquan Liu ◽  
Chunyan Chen ◽  
Jianping Wang ◽  
Ying Zou ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Water Samples ◽  
Solid Phase ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Phase Extraction ◽  
Zeolitic Imidazolate Frameworks ◽  
Highly Sensitive ◽  
Polycyclic Aromatic ◽  
Efficient Extraction

In this work, two novel ZIF materials, ZIF-7 and ZIF-11, were firstly introduced as SPE sorbents for PAHs efficient extraction and highly sensitive analysis in environmental water samples with HPLC coupled with fluorescence detection.

Improving Mycobacterium spp. detection in water: a new methodological proposal

2004 ◽  
Vol 4 (2) ◽  
pp. 103-106
Author(s):  
R. Santos ◽  
S. Gonçalves ◽  
F. Macieira ◽  
F. Oliveira ◽  
R. Rodrigues ◽  
...  
Keyword(s):  
Water Samples ◽  
Recovery Rate ◽  
Opportunistic Infections ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Sample Treatment ◽  
Detection Time ◽  
Fast Detection ◽  
Enrichment Step ◽  
Mycobacterium Spp

In recent years, non-tuberculous mycobacteria (NTM), once considered merely environmental saprophytes, have emerged as a major cause of opportunistic infections. There is no evidence of human-to-human transmission but they have been found in several environmental water samples. It is, therefore, of the utmost importance to develop methods of rapidly and accurately detecting non-tuberculous mycobacteria in water samples. To obtain a maximum recovery rate and a reduction of Mycobacterium spp. detection time in water samples, different decontamination, enrichment procedures and antibiotics supplements were tested before the inoculation into the Bactec® system. The proposed method of sample treatment (decrease in the decontamination time, followed for a peptone pre-enrichment step and an aztreonam and cefepime supplement) before the inoculation into the Bactec® system proved to be a good option for reliable and fast detection of Mycobacterium spp. in water samples.

The Occurrence of Male-Specific and Somatic Bacteriophages in Polluted South African Waters

1991 ◽  
Vol 24 (2) ◽  
pp. 251-254 ◽  
Author(s):  
R. Kfir ◽  
P. Coubrough ◽  
W. O. K. Grabow
Keyword(s):  
South African ◽  
Water Samples ◽  
Biological Treatment ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Resistance Pattern ◽  
Male Specific

The occurrence of somatic (F') and male-specific (F') coliphages and Salmonella phages in a variety of environmental water samples was studied using different bacterial hosts. The number of plaque-forming units (pfu) of the different bacteriophages were compared and their resistance pattern to a biological treatment (humus tank) and chlorination was evaluated. The presence of the bacteriophages in shellfish was also studied. The morphology of isolate bacteriophages was examined as well as the visibility of the different plaques formed. Coliphages were found to produce larger and clearer plaques than all other bacteriophages studied. In most of the environmental water samples coliphages outnumbered all other bacteriophages, with the exception of dam water in which higher levels of F' Salmonella phages were detected. The majority of the F' Salmonella phages were shown to be RNA bacteriophages.

Sign in / Sign up

Export Citation Format

Share Document