Real-Time Monitoring of Thermal Flavor Generation in Skim Milk Powder Using Atmospheric Pressure Chemical Ionization Mass Spectrometry
β Scribed by Turner, Jenny A.; Linforth, Robert S. T.; Taylor, Andrew J.
- Book ID
- 127282470
- Publisher
- American Chemical Society
- Year
- 2002
- Tongue
- English
- Weight
- 117 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0021-8561
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π SIMILAR VOLUMES
The use of Atmospheric Pressure Ionization followed by tandem mass spectrometry (API/MS/MS) for the analysis of flame gases was demonstrated. The hot flame gases from a methane/air laminar diffusion flame were sampled by rapid turbulent mixing with cold nitrogen gas, in a molar ratio of ca. 1 : 10.
Thiourea, a toxic substance for nitrification bacteria, active at low concentration levels (toxicity limit: 76 ppb), cannot be analysed by conventional methods. Its high solubility in water and insolubility in non-polar organic solvents, such as diethyl ether or dichloromethane, make its extraction