Abstract:
A method has been recommended for the determination of nitrite using 8-hydroxyquinoline as coupling agent with nitrite to yield a pink coloured end product. The Weisz ring-oven technique has been made use of for these studies. The effect of various cations and anions along with phenol on its determination has been investigated. Nitrite can be determined within the range from 2.0 to 200.00 ng with a maximum error of- 8.5% in the case of the former. The tolerance limits of this determination in the presence of co3-2 , HCO3-1,C1,NO3 , SO4-2, S03-2,SO,NH+4,CN,Mg +2,Co+2 ,Ca+2 ,Cd+2 ,Hg+2,Pb+2,Sn+2,Sn+4and phenol have also been reported. The reaction is very fast and one determination can be made with 10-15 minutes. The method is recommended for routine use.
Page(s):
269-274
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 30, Issue: 4, Year: 1987