Zobrazeno 1 - 10
of 26
pro vyhledávání: '"and C. L. Chakrabarti"'
Publikováno v:
Analytical Chemistry. 70:3434-3443
The absorbance of Cu atoms sputtered from a Cu cathode in a laboratory-modified radio frequency glow discharge atomizer for atomic absorption spectrometry was measured at different regions within the atomizer chamber for different discharge parameter
Publikováno v:
Analytical Chemistry. 66:3217-3222
Publikováno v:
J. Anal. At. Spectrom.. 7:371-381
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 323:730-736
Chemical reactions in the atomization of molybdenum in graphite furnace atomic absorption spectrometry have been studied using graphite platforms for atomization along with X-ray diffraction analysis. When Mo [as an aqueous solution of (NH4)2MoO4] is
Autor:
C. L. Chakrabarti, D. C. Gregoire
Publikováno v:
Analytical Chemistry. 49:2018-2023
The Application of a Simple Chemical Model of Natural Waters to Metal Fixation in Particulate Matter
Publikováno v:
Canadian Journal of Chemistry. 53:661-669
A simple chemical model was used to investigate the mechanisms controlling the distribution of metals between soluble and particulate fractions in natural waters. The model particulates used were potassium bentonite, hydrous MnO2, and solid humic aci
Publikováno v:
Analytical Chemistry. 52:520-523
The effect of pH and uranium concentration on the interactions of uranium(VI) and uranium(IV) with organic ligands was studied by employing dialysis and ultrafiltration techniques. The interactions of U(VI) and U(IV) with organic ligands in nitrate o
Publikováno v:
Water Research. 12:21-24
Model sediments were used to evaluate four extraction methods for fractionation of metals in sediment: 1. dilute HNO3 (total specifically-adsorbed metal); 2. 1 M NH4Cl (ion-exchangeable); 3. H2O2 (organic); 4. density separation using bromoform. The
Autor:
C. L. Chakrabarti, Robert D. Guy
Publikováno v:
Canadian Journal of Chemistry. 54:2600-2611
The interactions of Cu(II), Pb(II), Cd(II), and Zn(II) with humic and tannic acids were studied to evaluate the possibility of metal speciation using a combination of dialysis/atomic absorption spectroscopy, and the pH characteristics of the metal–
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 322:567-573
The spontaneity of metal atom formation from metal oxides, both in the condensed phase, via thermal decomposition or reduction by carbon in a graphite furnace, depends on the instantaneous partial pressure of oxygen inside the furnace. Since the part