IR spectra and microstructure of electrolyte solutions. Dependence of spectroscopic characteristics of solvated molecules on composition of solvates in the system CH3CN–Mg(ClO4)2–DMF

2001 ◽  
Vol 3 (11) ◽  
pp. 2098-2104 ◽  
Author(s):  
S. Akopyan ◽  
H. Bertagnolli ◽  
I. Boyarskaya ◽  
D. Leicht ◽  
R. Merkle ◽  
...  
Keyword(s):  
Ir Spectra ◽  
Electrolyte Solutions ◽  
Spectroscopic Characteristics ◽  
Solvated Molecules

scholarly journals FT-IR spectroscopic characteristics of differently cultivated Escherichia coli

2009 ◽  
Vol 26 (No. 6) ◽  
pp. 458-463 ◽  
Author(s):  
Z. Filip ◽  
S. Hermann ◽  
K. Demnerová
Keyword(s):  
Escherichia Coli ◽  
Ir Spectra ◽  
Cell Mass ◽  
Bacterial Cells ◽  
Cultural Conditions ◽  
Spectroscopic Characteristics ◽  
Nitrogen Concentrations ◽  
Ft Ir ◽  
Well Differentiated ◽  
Ir Spectroscopic

FT-IR spectra were recorded of <i>Escherichia coli</i> cell mass with the aim of obtaining spectral traits possibly useful in a rapid detection and characterisation of this indicator bacterium. A well differentiated spectrum was obtained from the cell mass harvested in a stationary phase of growth, e.g., after 24 h, from a minimum nutrient broth. The cell mass, harvested either earlier or grown in nutrient solutions which contained an enhanced carbon or nitrogen concentrations delivered somewhat different IR spectra, apparently due to a higher content of nucleic acid components as related to other structural constituents of bacterial cells. Consequently, the FT-IR spectra of <i>E. coli</i>, although rather rapidly to collect, seem only capable of delivering useful and reproducible information if the cell mass is obtained under standardised cultural conditions.

Electrolyte Solutions.

1961 ◽  
Vol 29 (3_4) ◽  
pp. 285-285 ◽  
Author(s):  
A. Weller
Keyword(s):  
Electrolyte Solutions
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