FIGURE 4.28 Absorption spectra lor some simple ketones (adapted from Martinez et al., 1992).

Table 4.26 summarizes the absorption cross sections for the relatively unstructured absorptions by other small aldehydes and ketones (Martinez et al., 1992). For acetaldehyde, there are three possible decomposi-

TABLE 4.24 Recommended Absorption Cross Sections (Base e) for HCHO at 223 and 293 Ka,b


102"<t (cm2

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