Preparation of Magnetic Graphene Nanocomposites for Fast Detection of Nitrobenzene in Environmental Water Samples by GC–MS

2014 ◽  
Vol 78 (1-2) ◽  
pp. 131-137 ◽  
Author(s):  
Kun Chen ◽  
Mei Xu ◽  
Yulong Ren ◽  
Guoxin Song ◽  
Yaoming Hu ◽  
...  
Keyword(s):  
Water Samples ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Graphene Nanocomposites ◽  
Fast Detection ◽  
Magnetic Graphene

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.

Determination of microcystins in environmental water samples with ionic liquid magnetic graphene

2019 ◽  
Vol 176 ◽  
pp. 20-26 ◽  
Author(s):  
Xiaoyan Liu ◽  
Shiqian Gao ◽  
Xinyue Li ◽  
Hui Wang ◽  
Xiaowen Ji ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Water Samples ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Magnetic Graphene
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