Chromium in plasma and urine as measured by electrothermal atomic absorption spectroscopy.

Chromium in plasma and urine as measured by electrothermal atomic absorption spectroscopy.

Direct analysis of platinum in plasma and urine by electrothermal atomic absorption spectrophotometry.

An improved technique is described for analysis of platinum (Pt) concentrations in plasma and urine by electrothermal atomic absorption spectrophotometry (EAAS). The method is intended for use in therapeutic monitoring of cancer patients treated with platinum-containing antitumor drugs. Samples (0.1 ml) of plasma, urine, or Pt standards are diluted to two ml with a matrix solution that contains...

Determination of aluminium and chromium in slurried baby food samples by electrothermal atomic absorption spectrometry.

Electrothermal atomic absorption spectrometry was used to determine aluminium and chromium in different types of baby foods. Samples without previous treatment were introduced into the atomizer as suspensions, which were prepared in a medium containing 0.1% (w/v) Triton X-100 (for chromium) or 10% (v/v) ethanol (for aluminium), 5% (v/v) concentrated hydrogen peroxide, and 0.5% (v/v) concentrate...

Estimation of gold in urine by atomic absorption spectroscopy.

The gold toxicity occasionally encountered during the treatment of rheumatoid arthritis by chrysotherapy may be conveniently treated with chelating agents to facilitate the urinary excretion of gold. It is of interest to monitor this urinary gold excretion, atomic absorption spectroscopy being a convenient technique. Although serum gold concentrations may be estimated after simple dilution (1),...

Application of Ion - Imprinted Polymer Synthesized as New Sorbent for Preconcentration and Separation of Thallium (I) and Its Determination by Electrothermal Atomic Absorption Spectroscopy

At this study, thallium (I) ion-imprinted polymer, as a novel sorbent for Tl (I) and comparison with Tl(III) ion-imprinted polymer has been synthesized. This sorbent for preconcentration and solid-phase extraction of Tl(I) ions from aqueous solutions, used. Through preparing the binary complex of Tl(I) ions with 5, 7-dichloroquinoline-8-ol (DCQ) the particles of thallium (I) Ion-Imprinted P...