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Figure 2 | Chemistry Central Journal

Figure 2

From: On-line solid-phase enrichment coupled to packed reactor flow injection analysis in a green analytical procedure to determine low levels of folic acid using fluorescence detection

Figure 2

Schematic diagram of on-line-SPEn coupled to packed reactor FIA for the analysis of FA in pharmaceutical formulations: the system in initial position, ready for sample injection, derivatization and enrichment step (A); the back-flush elution and detection step (B) (S.V.: switching valve).

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BMC Chemistry

ISSN: 2661-801X

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