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Assessment of variants of solid-phase extraction in quantitative analysis of caffeine

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PRZEMYSL CHEMICZNY
卷 97, 期 12, 页码 2128-2131

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WYDAWNICTWO SIGMA-N O T SP Z O O
DOI: 10.15199/62.2018.12.23

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Caffeine was recovered for anal. purposes from its aq. solns. by solid-phase extn. in presence of MeOH, MeCN and Me2CO. The apparent recovery degrees were higher than 100% because the signal of high performance chromatog. was disturbed by signals of interfering substances flushed from the column. MeOH was the most appropriate solvent for the recovering caffeine.

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