Ilościowe oznaczanie skrobi w reakcji z jodem [Quantitative determination of starch in the reaction with iodine]

Henryk Marciniak

Abstract


A quantitative method of determination by photometric measurement in the iodine-starch complex is described. Determinations were made within 0-250 μg range of starch content in 1 ml of solution. Starch was treated with 0.01N J in 1% KJ and extinction was read at wavelength 610 nm in a 1 cm thick layer of solution, with a "Specol" photocolorimeter. Statistical analysis of measurements showed a positive correlation between the starch amount and extinction.

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DOI: https://doi.org/10.5586/aa.1979.005

Journal ISSN:
  • 2300-357X (online)
  • 0065-0951 (print; ceased since 2016)
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Publisher
Polish Botanical Society