2-(5-Nitro-2-Pyridylazo)-5-(N-Propyl-N-Sulfopropylamino)Phenol as a new analytical reagent for flow-injection spectrophotometric determination of trace vanadium(V)

Flow-injection spectrophotometric determ

Flow-injection spectrophotometric determination of trace iron in various salts. Elimination of blank peak effect and use of 2-(5-nitro-2-pyridylazo) -5-(N-propyl-N-sulfopropylamino) phenol as chromogenic agent

✍ Takeshi Yamane; Hiroyo Yamada 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 559 KB

A highly sensitive flow-injection method is presented for the rapid and simple determination of iron in various salt samples. 2-(5-Nitro-2-pyridylazo)-5-(N-propyl-N-sulfopropylamino)phenol (Nitro-PAPS) was used as the chromogenic reagent for the spectrophotometric detection at 582 nm, yielding the i