An Environmentally Friendly Flow Injection-Gas Diffusion System Using Roselle (<i>Hibiscus sabdariffa</i> L.) Extract as Natural Reagent for the Photometric Determination of Sulfite in Wines

<div>Manifold of FI-GD photometric flow system for determination of sulfite; P = peristatic pump, V = six-port valve, S = standard/sample, C1 and C2 = mixing coils, and PC = personal computer.</div>

Journal of Analytical Methods in Chemistry

fig1

Figure 1

Figure 1: An Environmentally Friendly Flow Injection-Gas Diffusion System Using Roselle (<i>Hibiscus sabdariffa</i> L.) Extract as Natural Reagent for the Photometric Determination of Sulfite in Wines 

Figure 1 | An Environmentally Friendly Flow Injection-Gas Diffusion System Using Roselle (Hibiscus sabdariffa L.) Extract as Natural Reagent for the Photometric Determination of Sulfite in Wines 