Real time automatic system for the impedimetric monitoring of bacterial growth


AU: 
Muñoz-Berbel, X; Escudé, R; Vigués, N; Cortina-Puig, M; García-Aljaro, C; Mas, J; Muñoz, FX
SO: 
Analytical letters
GTQ Authors: 
VL: 
44
IS: 
16
BP: 
2571
EP: 
2581
PY: 
2011
SN: 
0003-2719
Impact: 
0.92
Year IF: 
2010
Abstract: 

This note describes the design and construction of new Virtual Instrumentation implemented in Lab View 7.1 for the real time monitoring of the concentration of Escherichia coli cultures using impedance spectroscopy and platinum electrode chips. A hand-made Sequential Injection Analysis system was used for both the transport of microbiological samples from the incubator to the electrochemical cell, where they were measured, and the elimination of residues. The impedimetric approach showed good correlation when compared with a standard method, fluorescence microscopy counting after filtration and staining of bacterial samples, until 10(7) colony forming units per mL was achieved.

DT: 
Article en revistes indexades
Percentil: 
LOW
Percentil Year: 
2010
Category: 
CHEMISTRY, ANALYTICAL