electronic sensor technology the znose™ : commercial application of a quantitative electronic...
TRANSCRIPT
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Electronic Sensor Technology WWW.ESTCAL.COM
The zNose™ : Commercial Application of a Quantitative Electronic Nose with Olfactory Images
and Virtual Sensor Arrays
• Introduction - zNoseTM Vs eNose
• Fast Chromatography and Virtual Sensor Arrays
• VaporPrintsTM - True Olfactory Images
• Food & Beverage Applications
Edward J. Staples Electronic Sensor Technology
Newbury Park, CaliforniaESTCAL.COM
Presented at The Knowledge Foundation Conference
San Diego, California, October 2000
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Electronic Sensor Technology WWW.ESTCAL.COM
zNose™ Description
• The zNose™ - A GC/SAW Electronic Nose with internal preconcentrator and helium gas supply
• 10 Second Analysis Speed
• Volatile Compounds - ppb MDL
• Semi-Volatile Compounds - ppt MDL
Handheld Benchtop
2 Popular Models Available
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Electronic Sensor Technology WWW.ESTCAL.COM
zNoseTM Vs eNose
zNose eNoseSpeciation YES NOEPA Methods YES NOSensitivity ppt ppmSpeed Seconds MinutesIntelligence Human ArtificialPrecision HIGH LOWAccuacy HIGH LOWStability Months HoursCal Standards YES NOSensors hundreds 4-32Olfactory Images YES NO
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Electronic Sensor Technology WWW.ESTCAL.COM
The Only Electronic Nose to be Validated by US EPA
• US EPA Environmental Technology Validation– Well Water Monitoring for volatile organic pollution– Soil testing for PCBs in the field– Soil testing for Explosives in the field
• White House ONDCP - Law Enforcement– Explosives– Drugs & Contraband– Money
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Electronic Sensor Technology WWW.ESTCAL.COM
Odor Management (Rendering Plants)
Smell from Blood Dryer (20oC Detector)
Creates Olfactory Images Specific to
Factory Odors
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Electronic Sensor Technology WWW.ESTCAL.COM
Quality Controlof Plastics
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Electronic Sensor Technology WWW.ESTCAL.COM
Fatty Acids in Milks
•Fats, Proteins, and sugars
•400 different fatty acids and fatty acid derivatives are found in milk
•Wide range of vapor pressures: butyric acid (C4) to triglyceride (C26)
Milk Fat Composition
0%10%
20%30%40%
50%60%
70%80%
C4-C8 C10-C14 C16+
Co
nte
nt
(%)
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Electronic Sensor Technology WWW.ESTCAL.COM
TCA in Wine and Corks (part per
trillion)
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Electronic Sensor Technology WWW.ESTCAL.COM
zNose™ Analysis of Campbell’s Soup
Clam ChowderChicken Noodle
MinestroneConsommé Beef
Split PeaBean Bacon
Cream of AsparagusVegetable
tomatoPotato
Cream of MushroomCream of Chicken
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Electronic Sensor Technology WWW.ESTCAL.COM
Vegetable Soup
Now you can define the smell of
vegetable soup using 26 specific
chemical sensors!
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Electronic Sensor Technology WWW.ESTCAL.COM
Campbell’s Soup VaporPrintsTM
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Electronic Sensor Technology WWW.ESTCAL.COM
zNoseTM Analysis of Whiskey
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Electronic Sensor Technology WWW.ESTCAL.COM
Now You can Quantify the Chemistry of a Wine’s Aroma in Seconds !
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Electronic Sensor Technology WWW.ESTCAL.COM
Comparison of 4 Popular American Beers
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Electronic Sensor Technology WWW.ESTCAL.COM
Summary
•zNoseTM technology– 10 Second Speed with true ppt
sensitivity
•Virtual Chemical Sensor Arrays
•True Olfactory Images
•Only Government Validated Electronic Nose : EPA/FDA Methods
•Virtually all Foods and Beverages
•Save Time and $$ with demonstrated 30 day (or less) payback period
For more information visit our web sites :