Fig. 7 shows an overlay of each the sample UV spectra and also the regular UV spectra for peak B when detected at 310 nm. The UV spectra from the compounds detected within the cosmetics are recommended to become exactly the same compounds because the regular compound since the two UV spectra coincide. The use of PDA detectors can obtain a UV spectr

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Column selectivity for carboxylic acids is calculated by the parameter B, though selectivity for standard compounds is calculated by C. If it is understood which the sample to generally be separated includes acids, it is necessary to examine the "acids existing" box in This system. Similarly, In the event the sample is made up of bases, the "Bases