Concentration of volatile organics in aqueous solutions on uncoated capillary columns and their thermal desorption

1990 ◽  
Vol 29 (11-12) ◽  
pp. 523-529 ◽  
Author(s):  
A. Zlatkis ◽  
R. P. J. Ranatunga ◽  
B. S. Middleditch
Keyword(s):  
Aqueous Solutions ◽  
Thermal Desorption ◽  
Capillary Columns ◽  
Volatile Organics

Temporally resolved thermal desorption of volatile organics from nanoporous silica preconcentrator

The Analyst ◽  
2021 ◽  
Vol 146 (1) ◽  
pp. 109-117
Author(s):  
William Winter ◽  
Coco Day ◽  
Joshua Prestage ◽  
Tanya Hutter
Keyword(s):  
Volatile Organic Compounds ◽  
Gas Phase ◽  
Organic Compounds ◽  
Thermal Desorption ◽  
Nanoporous Silica ◽  
Volatile Organics ◽  
Desorption Temperature ◽  
Volatile Organic

Gas-phase volatile organic compounds (VOCs) are collected in a nanoporous silica preconcentrator, then released slowly by heating onto a detector. Desorption temperature depends on VOC properties, allowing potential discrimination.

Rapid analysis of trace organics in aqueous solutions by enrichment in uncoated capillary columns

1990 ◽  
Vol 30 (3-4) ◽  
pp. 149-154 ◽  
Author(s):  
A. Zlatkis ◽  
R. P. J. Ranatunga ◽  
B. S. Middleditch
Keyword(s):  
Aqueous Solutions ◽  
Capillary Columns ◽  
Rapid Analysis ◽  
Trace Organics

Concentration of organics from aqueous solutions using uncoated capillary columns

1990 ◽  
Vol 62 (22) ◽  
pp. 2471-2478 ◽  
Author(s):  
Albert. Zlatkis ◽  
Ravindra P. J. Ranatunga ◽  
Brian S. Middleditch
Keyword(s):  
Aqueous Solutions ◽  
Capillary Columns

Ultrathin frozen sections of yeast without aldehyde prefixation

1978 ◽  
Vol 36 (2) ◽  
pp. 58-59
Author(s):  
K. J. Böhm ◽  
a. E. Unger
Keyword(s):  
Aqueous Solutions ◽  
Biological Material ◽  
Yeast Cells ◽  
Frozen Sections ◽  
Good Preservation ◽  
Ultrathin Frozen Sections

During the last years it was shown that also by means of cryo-ultra-microtomy a good preservation of substructural details of biological material was possible. However the specimen generally was prefixed in these cases with aldehydes.Preparing ultrathin frozen sections of chemically non-prefixed material commonly was linked up to considerable technical and manual expense and the results were not always satisfying. Furthermore, it seems to be impossible to carry out cytochemical investigations by means of treating sections of unfixed biological material with aqueous solutions.We therefore tried to overcome these difficulties by preparing yeast cells (S. cerevisiae) in the following manner:

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