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Air
Hygiene is
proud to introduce our latest testing and analysis upgrade – FTIR! Air
Hygiene has always excelled in providing the very
best service to our clients through both good old-fashioned
hard work and the use of the latest and greatest technologies.
The amazingly powerful analytical capabilities of FTIR provide
the next logical leap forward in technology for Air
Hygiene and our clients.
Fourier
Transform Infrared (FTIR) Spectroscopy
Identify multiple
compounds simultaneously
Get real-time data analysis
Superior detection limits
On-site testing
Save time and money
HOW IT WORKS
Fourier Transform Infrared
(FTIR) Spectroscopy is used to examine and characterize organic
and inorganic materials. The technique combines a microscope
and infrared spectrometer. Data is produced in the form of a
spectrum, with many bands that represent chemical bonding between
two particular atoms or a group of atoms in a molecule. The spectrum
is subsequently compared to a set of known reference materials
for identification and interpretation. As an analytic technique,
FTIR has several advantages. It requires only a minute sample.
It takes only minutes to conduct. And it will work with most
liquids or gases.
COMPOUND IDENTIFICATION
AND DETECTION
The FTIR measures the
absorption of various infrared light wavelengths by the material
of interest. These infrared absorption bands identify specific
molecular components and structures. The MIDAC FTIR system, used
by Air Hygiene, is rugged,
compact, and precise. The minimum detection limits (MDL) vary
with the compound and the effluent matrix being measured. Typically,
MDL’s range from 40 ppb to 10 ppm depending on the compound
of interest.
Recently, EPA has classified
formaldehyde as a probable human carcinogen as formaldehyde exposure
has been associated with reproductive effects such as menstrual
disorders and pregnancy problems. As a result EPA has proposed
to reduce the concentration of formaldehyde in the exhaust from
new or reconstructed stationary combustion turbines to 43 parts
per billion by volume or less, dry basis (ppbvd), at 15 percent
oxygen (if you use means other than an oxidation catalyst emission
control device). Air Hygiene uses
a cold filter in the FTIR for high sensitivity measurements of
formaldehyde. The MDL for formaldehyde is 40 ppb.
DATA ANALYSIS
The FTIR spectrometer
system consists of an interferometer, a computer, a data station,
and a printer for data output. With an infrared data station,
the computer acquires, processes, stores and retrieves spectral
data. AutoQuant Pro, a powerful new automated, multi-component,
quantitative analysis program, is used for analyzing gas phase
mixtures in real time. Quantitative results, concentration vs.
time plots, and spectra can be displayed and updated in real-time
for continuous monitoring applications.
The spectra or the
interferogram is a permanent record and can be analyzed at a
future time to identify and quantify additional compounds not
known during the initial testing program. For example, if the
sample was tested for only acrolein and formaldehyde, following
the test, the tester is able to identify and quantify toluene,
benzene, and acetaldehyde without repeating the test. This ability
to perform post-test analysis for additional compounds will save
you both time and money.
QUALITY ASSURANCE
Air
Hygiene’s goal
is to achieve total customer satisfaction by delivering accurate,
on-time analyses that meet each client’s needs. It is
our responsibility to provide each client with quality results.
This is accomplished by documenting all facets of the analysis,
communicating any questionable or out-of-specification results
to the client, following procedures and complying with standards,
and auditing data internally.
FTIR
Compounds
| acetaldehyde |
epichlorohydrin |
oxygen difluoride |
| acetic acid |
1,2-epoxybutane |
ozone |
| acetone |
ethane |
pentafluoroethane |
| acetonitrile |
ethanol |
perfluorobutane |
| acetophenone |
ethyl acrylate |
perfluoroethane |
| acrolein |
ethyl benzene |
perfluorohexane |
| acrylic acid |
ethyl chloride (chloroethane) |
perfluoromethane |
| acrylonitrile |
ethylbenzene |
perfluoropropane |
| allyl chloride |
ethylene |
perfluoropropene |
| 2-amino-2-methyl-1-propanol |
ethylene dibromide - (dibromoethane) |
phenol |
| ammonia |
ethylene dichloride |
phosphine |
| aniline (phenylamine) |
ethylene oxide |
propane |
| arsine |
ethylidene dichloride |
1,2,3-propanetriol w/methyl oxirane |
| benzene |
fluoroethane |
propionaldehyde |
| benzotrichloride |
fluoromethane |
propylene dichloride |
| benzyl chloride |
formaldehyde |
propylene glycol |
| beta-propiolactone |
hexachlorobutadiene |
propylene glycol methyl ether acetate |
| bis (chloromethyl) ether |
hexachlorocyclopentadiene |
propylene oxide |
| boron trichloride |
hexachloroethane |
1,2-propylenimine-(2-methyl aziridine) |
| boron trifluoride |
hexamethylphosphoramide |
qinoline |
| bromoform |
hexane |
silane |
| 1,3-butadiene |
hexyl acetate |
silicon tetrafluoride |
| 1-butanol |
hydrazine |
styrene |
| butyl acetate |
hydrogen bromide |
styrene oxide |
| carbon dioxide |
hydrogen chloride |
sulfur dioxide |
| carbon disulfide |
hydrogen fluoride |
sulfur hexafluoride |
| carbon monoxide |
isophorone |
sulfuryl fluoride |
| carbon tetrachloride |
isopropanol |
1,1,2,2-tetrachloroethane |
| carbonyl fluoride |
maleic anhydride |
tetrachloroethylene (perchloroethylene) |
| carbonyl sulfide |
methane |
tetraethoxy silane (TEOS) |
| chloroacetic acid |
methanol |
1,1,1,2-tetrafluoroethane |
| 2-chloroacetophenone |
methyl bromide - (bromomethane) |
1,1,2,2-tetrafluoroethane |
| chlorobenzene |
methyl chloride - (chloromethane) |
thionyl fluoride |
| chloroform |
methyl chloroform - (1,1,1-trichloroethane) |
toluene |
| chloromethyl methyl ether |
methyl ethyl ketone - (2-butanone) |
2,4-toluene diisocyanate |
| chloroprene (2-chloro-1,3-butadiene) |
methyl hydrazine |
1,2,4-trichlorobenzene |
| m-cresol |
methyl iodide - (iodomethane) |
1,1,2-trichloroethane |
| o-cresol |
methyl isoamyl ketone |
trichloroethylene |
| p-cresol |
methyl isobutyl ketone - (hexone) |
2,4,5-trichlorophenol |
| cumene |
methyl methacrylate |
triethylamine |
| cyclohexanone |
methyl tert butyl ether |
1,1,1-trifluoroethane |
| 1,2-dibromo-3-chloropropane |
methylene chloride-(dichloromethane) |
1,1,2-trifluoroethane |
| 1,4-dichlorobenzene |
n,n-diethyl aniline |
trifluoromethane |
| dichloroethyl ether |
nitric oxide |
tungsten hexafluoride |
| 1,3-dichloropropene |
nitrogen dioxide |
2,2,4-trimethylpentane |
| dichlorvos |
n-nitrosodimethylamine |
vinyl acetate |
| difluoroethane |
n-nitrosomorpholine |
vinyl bromide |
| difluoromethane |
naphthalene |
vinyl chloride |
| dimethyl carbamyl chloride |
nicotine |
vinylidene chloride |
| dimethyl formamide |
nitrobenzene |
m-xylene |
| 1,1-dimethyl hydrazine |
2-nitropropane |
o-xylene |
| dimethyl phthalate |
o-toluidine |
p-xylene |
| 1,4-dioxane - (1,4-diethylene oxide) |
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If
you’d like to download a .pdf of our complete FTIR brochure,
click here. Please note that the .pdf file has been “zipped”,
so you’ll need a copy of WinZip or other file compression
program. Also, you'll need a copy of Adobe Acrobat Reader in
order to view the brochure once it's unzipped.
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