Mold identifying chemicals

[Guest guest]

Could a

Foxboro Miran gas analyser identify the presence of mould by chemical signature

of the following?

3 Octanone 3 methylfuran 2 Methyl -1-butanol Octadiene I Octen-3-ol 2 –Propanonol

Ethylbenzene Pentatone Limonene?

Regards

Jeff Charlton

Disaster Advice

London

[Guest guest]

Jeff:

The MVOCs you mention are often too low in concentration to reliably detect with this Foxboro unit. The only time I have seen a reliable response from an IR or FID field detection device to MVOCs was when I was in a bakery that had a lot of ethanol in the air. This said, I imagine that if you took the device to a VERY well-contaminated structure with a lot of very active mold growth, and in an enclosed and calm space with no air movement, you might find a slight increase (using the Foxboro unit) in total VOC concentration inside the space relative to outside the space....but you are looking for differences of at most one or two ppm/v; which may be difficult to reliably discern. I don’t believe you will be able to speciate the VOCs at all.

For what it is worth....

--

Geyer, PE, CIH, CSP

President

KERNTEC Industries, Inc.

Bakersfield, California

www.kerntecindustries.com

Could a Foxboro Miran gas analyser identify the presence of mould by chemical signature of the following?

3 Octanone 3 methylfuran 2 Methyl -1-butanol Octadiene I Octen-3-ol 2 –Propanonol Ethylbenzene Pentatone Limonene?

Regards

Jeff Charlton

Disaster Advice

London

[Guest guest]

Jeff,

We have a MIRAN SapphIRe 100E. Of the compounds you listed, the only one included in the Fixed Library for this instrument is Ethylbenzene (detection limit 1.2 ppm). Next closest is n-Propanol with a detection limit of .6 ppm.

Have you considered an Inficon HAPSITE (portable GC/MS)? Ours is a first generation, and wouldn't be sensitive enough, but a newer model might be just the right thing for you.

Curtis Redington, RS

Environmental Quality Specialist

City of Wichita Dept. of Environmental Health

Wichita, KS

-----Original Message-----From: iequality [mailto:iequality ]On Behalf Of J CharltonSent: Friday, December 29, 2006 1:33 PMTo: iequality Subject: Mold identifying chemicals

Could a Foxboro Miran gas analyser identify the presence of mould by chemical signature of the following?

3 Octanone 3 methylfuran 2 Methyl -1-butanol Octadiene I Octen-3-ol 2 –Propanonol Ethylbenzene Pentatone Limonene?

Regards

Jeff Charlton

Disaster Advice

London