PN 350-010000-05
P a g e
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Figure 9: KKT absorption spectrum of Poly (Methyl Methacrylate)
The above curve is generated using the double FFT algorithm. Note that Kramers-Kronig transforms are
approximations and the resulting spectra should be used with caution when attempting quantitation.
The transform should only be performed on spectra that show derivative peaks. If a Kramers-Kronig
transform is performed on a spectrum with non-derivative peaks, the results may be erroneous.
Precautions
In order to provide the maximum transmission in the infrared, with the minimum spectral interferences,
the mirrors used in this device are uncoated (bare) aluminum on a glass substrate. Since the coatings are
soft, care must be taken to avoid damage. Normally, these mirrors will not need cleaning, since they are
contained within the housing of the accessory. If they do need cleaning, they may be gently wiped with
a lint-free, abrasive-free cloth, such as lens tissue, or with a camel hair brush. Under no circumstances
must the mirrors be rubbed with paper products such as “Kleenex” since this will produce scratching of
the mirror coating.
Maintenance Parts
The following parts may be ordered separately:
Description
Part Number
10Spec Alignment Mirror
300-0002
10Spec Sample Mask Set
010-3010
