Abstract
WHILE, so far, the spot test on filter paper, developed by Dr. F. Feigl and his co-workers, has been used exclusively for qualitative purposes, we have discovered a method for the estimation of various substances by using circular filter papers and the solvents which are commonly used in paper partition chromatography.
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References
Feigl, F., “Qualitative Analyse mit Hilfe von Tüpfelreaktion”.
Nature, 161, 435 (1948).
Nature, 168, 511 (1951).
Giri, K. V., and Rao, N. A. N., Nature, 169, 923 (1952).
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KARIYONE, T., SHIMIZU, S. & HASHIMOTO, Y. Quantitative Spot Test on Filter Paper and Examples of its Application. Nature 170, 422 (1952). https://doi.org/10.1038/170422a0
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DOI: https://doi.org/10.1038/170422a0
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