+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Usefulness of the chemical modification and the multi-injection technique approaches in the electrothermal atomic absorption spectrometric determination of silver, arsenic, cadmium, chromium, mercury, nickel and lead in sea-water



Usefulness of the chemical modification and the multi-injection technique approaches in the electrothermal atomic absorption spectrometric determination of silver, arsenic, cadmium, chromium, mercury, nickel and lead in sea-water



Journal of Analytical Atomic Spectrometry 13(8): 777-786



A critical study of the use of chemical modification and background correction systems was carried out for the direct determination of several high and medium volatility and refractory metals (Ag, As, Cd, Cr, Hg, Ni and Ph) in seawater samples by ETAAS. The influence of increasing seawater inorganic matrix on the atomic signals, by the introduction of a large injection volume, was evaluated for different chemical modifiers (mainly Pd(NO3)2, Mg(NO3)2 and also reduced palladium, which was done by using different reducing agents, viz., ascorbic acid, hydroxylamine hydrochloride and citric acid) and with two background correction systems (deuterium arc background correction (DABC) and Zeeman effect background correction (ZEBC)). The influence of the salt matrix from sea-water was found to be very important for medium volatility metals such as Ag, As and Ph (charring temperatures between 1100 and 1400degreeC), whereas for refractory (Cr and Ni, with charring temperatures of 1500 and 1600degreeC, respectively) and high volatility metals such as Cd and Hg (charring temperature of 500 and 300degreeC, respectively) this influence was insignificant. By using chemical modification and background correction, the interferences from the saline matrix were lowered for all metals studied (except Ph) and their direct determination in sea-water samples became possible. For high and medium volatility metals the use of reduced palladium offers better analytical performance than the use of palladium nitrate, while the addition of reducing agents does not improve the analytical performance for refractory metals.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 009708918

Download citation: RISBibTeXText

DOI: 10.1039/a801119b


Related references

Slurry sampling for electrothermal atomic absorption spectrometric determination of chromium, nickel, lead and cadmium in sewage sludge. Analytica Chimica Acta 437(1): 11-16, 2001

Slurry sampling for electrothermal atomic absorption spectrometric determination of chromium, nickel, lead and cadmium in sewage sludge. Analytica Chimica Acta 437(1): 11-16, 20 June, 2001

Electrothermal atomic absorption spectrometric determination of aluminium, cadmium, chromium, copper, iron, manganese, nickel and lead in olive oil. Journal Of Analytical Atomic Spectrometry. 13(3): 201-204, Ch, 1998

Determination of Lead, Cadmium, Arsenic and Nickel in Atmospheric Particulate Matter by Simultaneous Multi-Element Electrothermal Atomic Absorption Spectrometry. International Journal of Environmental & Analytical Chemistry 79(2): 121-132, 2001

Simultaneous determination of arsenic, cadmium, copper, chromium, nickel, lead and thallium in total digested sediment samples and available fractions by electrothermal atomization atomic absorption spectroscopy (ET AAS). Talanta 97: 505-512, 2012

Application of zirconium-iridium permanent modifier for the simultaneous determination of lead, cadmium, arsenic, and nickel in atmospheric particulate matter by multi-element electrothermal atomic absorption spectrometry. Environmental Monitoring and Assessment 185(8): 6867-6879, 2013

Electrothermal atomic absorption spectrometric determination of cadmium and lead in traces in aquatic systems following flotation by two chromium(III) collectors. Journal of Environmental Science and Health. Part A Toxic/Hazardous Substances and Environmental Engineering 44(12): 1274-1281, 2009

Chromium determination in sea water by electrothermal atomic absorption spectrometry using Zeeman effect background correction and a multi-injection technique. Fresenius' Journal Of Analytical Chemistry. 360(2): 208-212,. 2, 1998

Flow injection on line separation and preconcentration for electrothermal atomic absorption spectrometry part 1. determination of ultratrace amounts of cadmium copper lead and nickel in water samples. Journal of Analytical Atomic Spectrometry 6(4): 295-300, 1991

Electrothermal atomic absorption spectrometric determination of cadmium and lead in blood using flow injection on-line sorption preconcentration in a knotted reactor. Spectrochimica Acta Part B Atomic Spectroscopy. 53(6-8): 1041-1048, Y, 1998

Interferences of major elements in the determination of lead, copper, cadmium, chromium and nickel in river sediments and sewage sludges by electrothermal atomic absorption spectrometry. Analytica Chimica Acta 149: 107-114, 1983

Nickel as a chemical modifier for sensitivity enhancement and fast atomization processes in electrothermal atomic absorption spectrometric determination of cadmium in biological and environmental samples. Analytical Sciences 19(12): 1631-1636, 2003

Investigation of Chemical Modification in the Simultaneous Graphite Furnace Atomic Absorption Spectrometric Detection of Arsenic, Cadmium, Lead, and Selenium. Spectroscopy Letters 27(2): 257-267, 1994

Electrothermal atomic absorption spectrometric determination of cadmium and nickel in urine. Journal of Analytical Toxicology 14(1): 29-33, 1990

Determination of cadmium, chromium, copper and lead in sediments and soil samples by electrothermal atomic absorption spectrometry using zirconium containing chemical modifiers. Analytical Sciences 22(5): 731-735, 2006