𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of trace metals in natural waters by flame atomic absorption spectrometry following on-line ion-exchange preconcentration

✍ Scribed by M.C. Yebra-Biurrun; A. Bermejo-Barrera; M.P. Bermejo-Barrera; M.C. Barciela-Alonso

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
468 KB
Volume
303
Category
Article
ISSN
0003-2670

No coin nor oath required. For personal study only.

✦ Synopsis

An on-line column preconcentration

technique for flow-injection flame atomic absorption spectrometry has been developed for the determination of trace metals in natural waters. A minicolumn (20 mm X 2 mm id.) filled with a poly(aminophosphonic acid) chelating resin (PAPhA, 20-30 mesh) was used for the preconcentration procedure. For 2 ml samples, detection limits of 0.5, 5.0, 1.5, 1.6, 3.5, 0.6, 3.2, 3.1 and 0.4 pg 1-l for Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn, respectively, were achieved. The precision (coefficient of variation) obtained was in the range between 1.1 (Cd and Cu) and 3.3% (Co). Accuracy was also investigated and results agreed with the certified values of the reference material. The sampling rate was 48 h-'. The method was applied to the determination of trace metals in natural waters samples from Galicia (Spain).

πŸ“œ SIMILAR VOLUMES

Automatic on-line preconcentration syste
Automatic on-line preconcentration system for graphite furnace atomic absorption spectrometry for the determination of trace metals in sea water
✍ Zhen-Shan Liu; Shang-Da Huang πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 444 KB

An automatic on-line preconcentration system for graphite furnace atomic absorption spectrometty (GFAAS) for the determination of trace metals in sea water was developed. This system was modified from a Perkin-Elmer AS-40 autosampler by mounting a silica gel Crs microcolumn near the tip of the autom

Determination of Copper in Mineral Water
Determination of Copper in Mineral Waters from Galicia, Spain, by Flame Atomic Absorption Spectrometry Using Preconcentration with Diethyldithiocarbamate Loaded on Silica Gel
✍ B. Perez-Cid; S. Rio-Segade; C. Bendicho πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 106 KB

Solid phase extraction using sodium diethyldithiocarbamate (DDC) loaded on silica gel has been used for preconcentration of trace amounts of copper from commercial mineral waters prior to its determination by flame atomic absorption spectrometry. The sorption and releasing of copper have been studie