Folin–Ciocalteau reagent and Iron (III) chloride hexahydrate (FeCl3·6H2O) were acquired from Dinâmica (São Paulo, Brazil). Methanol (Merck, Darmstadt, Germany) and formic acid (Panreac, Barcelona, Spain) were HPLC grade. 2,4,6-Tris(2-piridil)-s-triazina (TPTZ), 2,2-difenil-1-picril-hidrazil (DPPH), 6-Hidroxi-2,5,7, 8-tetrametilcromano-2-carboxylic acid (Trolox), 2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), potassium persulfate, gallic acid, catechin hydrate, chlorogenic acid, caffeic acid, ellagic acid hydrate, and e quercetin were supplied by Sigma-Aldrich (St Louis, MO, USA). Potassium carbonate and Deionized water were purchased from Synth (Diadema, Brazil) and obtained from a Milli-Q (Millipore, Billerica, MA, USA) purification unit, respectively.
Folin ciocalteau reagent
Manufactured by Dinâmica
Sourced in Brazil
The Folin–Ciocalteau reagent is a laboratory chemical used for the colorimetric determination of phenolic compounds. It is a mixture of phosphomolybdic and phosphotungstic acids.
Automatically generated - may contain errors
Lab products found in correlation
Formic acid, by ITW Reagents (1 mentions)
2 2 azino bis 3 ethylbenzothiazoline 6 sulfonic acid diammonium salt, by Merck Group (1 mentions)
2 4 6 tris 2 piridil s triazina, by Merck Group (1 mentions)
Iron 3 chloride hexahydrate, by Dinâmica (1 mentions)
2 2 difenil 1 picrilhidrazil, by Merck Group (1 mentions)
Caffeic acid, by Merck Group (1 mentions)
Chlorogenic acid, by Merck Group (1 mentions)
Methanol, by Merck Group (1 mentions)
Potassium persulfate, by Merck Group (1 mentions)
Deionized water, by Merck Group (1 mentions)
Catechin hydrate, by Merck Group (1 mentions)
Gallic acid, by Merck Group (1 mentions)
2 2 diphenyl 1 picrylhydrazyl (dpph), by Merck Group (1 mentions)
Sodium carbonate, by Dinâmica (1 mentions)
Gallic acid, by Dinâmica (1 mentions)
2 protocols using folin ciocalteau reagent
1
Antioxidant Compounds Analysis Protocol
2
Guava Leaves Antioxidant Potential
Check if the same lab product or an alternative is used in the 5 most similar protocols
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The leaves of the guava plant (Psidium guajava Linn. var. Pomifera) from the seedling bed was kindly donated by the Division of Parks and Conservation Units of the Secretariat for the Environment (Sorocaba, São Paulo, Brazil), ethanol (Synth, São Paulo, Brazil), hydrochloric acid (Neon, São Paulo, Brazil). Folin-Ciocalteau reagent (Dinâmica, São Paulo, Brazil), sodium carbonate (Dinâmica, São Paulo, Brazil), gallic acid (Dinâmica, São Paulo, Brazil). 2,2-diphenyl-1-picrylhydrazyl (Sigma-Aldrich, Steinheim, Germany), methanol (Chemco, São Paulo, Brazil). All reagents used were analytical grade.
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