์ฝ˜ํ…์ธ ๋กœ ๊ฑด๋„ˆ๋›ฐ๊ธฐ
Merck

[Quantitative gas chromatographic determination of pantolactone].

Voprosy meditsinskoi khimii (1984-01-01)
A G Moฤญseenok, V S Slyshenkov, E V Sunozova, V A Gurinovich
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A gas chromatographic procedure is described for quantitative estimation of alpha-hydroxy-beta 1 beta-dimethyl-gamma-butyrolactone (pantolactone). The chromatography was carried out using "LHM-8MD" apparatus equipped with a flame ionization detector. Columns with chromaton N-AW modified by 5% silicone XE-60 were used, helium served as a gas-carrier, chloroform - as a solvent, gamma-butyrolactone was introduced as a standard. High resolving power was achieved in experiments with the column for the analyzed substances and the standard at the sensitivity of the method 7.6 X X 10(-4) mmole/ml.

MATERIALS
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Sigma-Aldrich
(S)-(+)-Pantolactone, 97%
Sigma-Aldrich
DL-ฮฑ-Hydroxy-ฮฒ,ฮฒ-dimethyl-ฮณ-butyrolactone, purum, โ‰ฅ97.0% (T)
Sigma-Aldrich
D-(โˆ’)-Pantolactone, 99%