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Potentialities of a new detection method making use of photographic information transformers were demonstrated as exemplified by enzyme immunoassay of human chorionic beta-gonadotropin. Commercial enzyme immunoassay kits for measurements of human chorionic beta-gonadotropin manufactured by Diaplus joint venture were used in the study. The results of traditional spectrophotometric detection and photographic detection were in good correlation, the correlation coefficient r being equal to 0.882. The sensitivity of the method permits reliable testing of clinically significant gonadotropin concentrations in biologic fluids.
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