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Fast simultaneous spectrophotometric determination of naphazoline nitrate and methylparaben by sequential injection chromatography

✍ Scribed by Petr Chocholouš; Dalibor Šatínský; Petr Solich


Book ID
116901801
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
215 KB
Volume
70
Category
Article
ISSN
0039-9140

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Simultaneous spectrophotometric determin
✍ Anatol Kojło; Ewa Gorodkiewicz 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 353 KB

A spectrophotometric flow-injection method based on a diazo-coupling reaction is proposed for the simultaneous determination of nitrite and nitrate. Nitrate is reduced to nitrite by using a reductor column which is formed by filling part of the sample loop with copperized cadmium. The flow system pr