A very simple, ultra-sensitive and highly selective non-extractive spectrophotometric method for the determination of trace amounts of lead using 5,7-dibromo-8-hydroxyquinoline (DBHQ) has been developed. DBHQ reacts in a slightly acidic (0.0006-0.0025 M HCl) aqueous solution with...
Open access
Research Article10.9734/CSJI/2019/v26i230087
A very simple, ultra-sensitive and highly selective non-extractive spectrophotometric method is presented for the rapid determination of iron (III) at trace levels using ortho aminophenol or 2-aminophenol (OAP) as a new spectrophotometric reagent (lmax = 402 nm) in slightly acidi...
Open access
Research Article10.9734/ACSJ/2015/16749
The very sensitive, fairly selective direct spectrophotometric method is presented for the rapid determination of silver at ultra-trace level using1, 5-diphenylthiocarbazone (dithizone) as a new micellar spectrophotometric reagent ( max= 495 nm) in a slightly acidic (0.1-1.0 M H2...
Open access
Research Article10.9734/IRJPAC/2014/8157
A very simple, ultra-sensitive and highly selective non-extractive spectrophotometric method for the determination of trace amount of cadmium using 2/, 3, 4/, 5, 7- pentahydroxyflavone (morin) has been developed. Morin reacts in a slightly acidic (0.000001-0.000012M H2SO4) in 50%...
Open access
Research Article10.9734/ACSJ/2014/5829
A very simple, ultra-sensitive and highly selective non-extractive spectrophotometric method is present for the determination of manganese at trace level using bis(2-hydroxy-1-napthaldehyde) orthophenylenediamine (HNA-OPD-HNA) has been proposed as new analytical reagent for the d...
Open access
Research Article10.9734/ACSJ/2014/7313