Spectrophotometric Flow Injection Methods for Zinc Determination in Pharmaceutical and Biological Samples

Spectrophotometric flow injection methods for zinc determination in pharmaceutical and biological samples.

Zinc ions form a yellow complex with di-2-pyridyl ketone salicyloylhydrazone (DPKSH). This complex showed maximum absorption at 376 nm, and it was used to develop spectrophotometric flow injection methods for Zn(II) determination in different samples. Two types of flow systems were proposed. In the first system, a linear analytical curve was obtained in a concentration range from 0.217 to 4.60 ...

Spectrophotometric Determination of Selenium in Environmental, Biological and Pharmaceutical Samples

Flow injection spectrophotometric determination of amoxicillin in pharmaceutical samples by coupling with diazotized p- nitroaniline

A spectrophotometric method using flow injection analysis (FIA) is described for the determination of amoxicillin (AMX). Its detection limit, linearity and reproducibility were examined.The automated method is based on a coupling reaction between AMX and diazotized paranitroaniline (DPNA) in alkaline medium to form an intense reddishorange, water-soluble dye that is stable and has a maximum abs...

Flow Injection Spectrophotometric determination of Doxorubicin Hydrochloride in Urine samples

A simple and fast FI colorimetric procedure for determination of doxorubicin hydrochloride (DXH) was proposed. It is based on the redox reaction between iron (III) and DXH, resulting in an intensely red colored complex in the presence of 1, 10-orthophenantroline which can be followed by spectrophotometric measurement at λmax= 510 nm. This is an automatic way to determine doxorubicin hydrochlori...

Spectrophotometric Determination of Cephalosporins in Pharmaceutical Samples