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DETERMINATION OF TRACE NITRITE AS 4-(4-NITROBENZENAZO)- 1-AMINONAPHTHALENE COMPLEX BY EXTRACTION-SPECTROPHOTOMETRY | Amri | Indonesian Journal of Chemistry 21539 40625 1 PB

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Gambar

Gambar 1. Reaksi pembentukan kompleks 4-(4-nitrobenzenazo)-1-aminonaftalen
Gambar 3. Profil pengaruh pH pada pembentukankompleks 4-(4-nitrobenzenazo)-1-aminonaftalen dalampelarut n-amilalkohol dan kloroform.
Gambar 4. Kurva waktu reaksi lawan absorbansi padapembentukankompleks4-(4-nitrobenzenazo)-1-aminonaftalen dengan konsentrasi nitrit dalam air 0,02mg/L (sebagai N) dan pemekatan 10 kali dalam n-amilalkohol dan kloroform.
Gambar 7. Pengaruh konsentrasi pereaksi terhadappembentukankompleks4-(4-nitrobenzenazo)-1-aminonaftalen setelah pemekatan 10 kali dalam pelarut n-amilalkohol pada 0,02 mg/L N-NO2-.
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