Abstract
A factor analysis-based experiment for the undergraduate instrumental analysis labs is reported. Target factor analysis (TFA) is investigated as an option to the use of high-performance liquid chromatography (HPLC) in the analysis of a pain reliever sample containing aspirin, caffeine, and salicylamide. The success of TFA as a calibration technique lies in obtaining the optimum response factor matrix, which depends on a well designed calibration matrix as well as the composition of the sample and calibration solutions. In this study, the desirable calibration solution sets were those which indicated less correlation within the set, as shown by the calculated correlation coefficients. The discrepancy in the sample and calibration solutions was accounted for by implementing the generalized standard addition method, so that the responses of the sample and calibration solutions were measured under the same background interference conditions.A scanning UV160U Shimadzu was used to obtain absorbances, while a Mi...
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