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A method for the estimation of heterogeneous kinetic parameters of an electrochemical reaction has been developed. The parameters are extracted from a single stationary electrode polarogram by a comparison of the real polarogram with a reference file of theoretical polarograms. The Fourier transform was used to represent the voltammogram, and the Euclidean distance in 15-dimensional Fourier space was used as the similarity measure.The problems of noisy real data were minimized by using the natural weighting of lower frequency Fourier coefficients. Five chemical systems of known behavior were used to demonstrate the accuracy of this technique. The on-line computer procedure allows rapid (less than 20 s) prediction of three kinetic parameters, , a, and n, from a single voltammogram. In addition, the procedure provides important diagnostics which can be used to evaluate the confidence of the prediction. These diagnostics were

A group of analytical chemists at Procter and Gamble have developed a one-day short course to inform students about careers as analytical chemists in industry. This course has been presented to over 1400 students.

A procedure is described for the accurate analysis of thetrans content of fats and oils in the range of 0.5–36%trans. This procedure is shown to be more accurate than other current infrared spectrophotomeny methods. This increased accuracy is obtained by using a 2‐component calibration standard mixture and measuring the samples as methyl esters. Good agreement between this method and the measurement oftrans content by a gas chromatography procedure is demonstrated.

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