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Chemical speciation of Cu, Zn, Pb and Cd in rain water


, : Chemical speciation of Cu, Zn, Pb and Cd in rain water. Analytica Chimica Acta 288(3): 141-156

A scheme for metal speciation which combines physical characterization by size fractionation and chemical characterization by dissociation kinetics has been used to characterize trace metal species in a sample of rain water. The lability of the metal species in each size fraction of ultrafiltration was determined by differential pulse anodic stripping voltammetry and by ion-exchange with Chelex-100 resin, using both the column and the batch technique. Most of the Pb, Cd, Cu and Zn soluble species were ASV-labile and Chelex-labile, and fell in the small size fractions (< 1000 molecular weight cut off). Kinetic analysis of the rain water sample (multi-component system) revealed the presence of the following kinetically distinguishable components (other than the very labile metal aqua ions) undergoing first-order (or pseudo-first-order) dissociation: three for copper, two for zinc, two for lead and one for cadmium. The lability of metal species found in the rain water sample ranged from labile, moderately labile, slowly labile to inert species, the half-lives range from less than one minute to more than seven days. The results of the kinetic analysis of rain water samples were very similar to those of a snow sample collected at the same site about 8 months earlier. The observed difference between the kinetically distinguishable components in the rain water sample and in the snow sample may be due to differences in the pH of the samples.

US$19.90

DOI: 10.1016/0003-2670(94)80128-2


Other references

Tomida, Y.; Kunishima, S.; Naoe, T.; Hidaka, H., 1996: Is platelet injured during cardiopulmonary bypass? A possible assessment by whole blood aggregability and proteolytic fragment of glycoprotein Ib alpha, glycocalicin. European Journal of Clinical Investigation 26(SUPPL 1): A5

Quinn, James A., 1997: Natural expansion of the non-invasive Buchloe dactyloides at a denuded site in New Jersey and its implications for turf and conservation uses. Bulletin of the Ecological Society of America 78(4 SUPPL ): 166

Jiang, P.P.; Hansen, T.H.; Shreffler, D.C.; Miller, R.D., 1995: Mouse H2 congenic intervals: analysis and use for mapping. In this study we exploit the unique genetic resource of inbred mouse major histocompatibility complex (H2) congenic and recombinant strains to construct a high-resolution map of microsatellite loci in and around the H2 region, as well as an indepe...

Sekse, L.; Bjerke, K.L.; Vangdal, E., 2005: Fruit cracking in sweet cherries - an integrated approach. Sap import through the sweet cherry fruit stem has been measured and is suggested to be the main source for developing turgor pressure in the fruit, which is the driving force for fruit cracking. Similarly, water loss from the surface of the fruit...

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Ye, H-Tao.; Ren, C-Yue.; Gao, J-Sheng., 2012: Piperazine-1,4-diium (R)-2-[4-(1-car-boxy-l-atometh-oxy)phen-oxy]propano-ate. In the anion of the title mol-ecular salt, C(4)H(12)N(2) (2+)·C(11)H(10)O(6) (2-), the two acetate groups form torsion angles of 74.1 (1) and 7.1 (1)° with the central benzene ring, and the cation exhibits a chair conformation. In the crysta...

Crispin, B., 1978: Acrylic resin copings: an adjunct to fixed restorative dentistry. A simple technique for fabricating and several uses for acrylic resin copings have been presented. These techniques apply to many aspects of restorative dentistry and often are used in combination with each other. Master cast fabrication, interocc...

Berge, S., 1957: The inheritance of muzzle colour, muzzle ring and black hair on the head of red cattle. Observations were based on Red Polled 0stland, Telemark, Norwegian Red-and-White, Tele-mark x Finnish Ayrshire, NRF X D<o>le and some slaughter house cattle; 10 bulls each with 8 calves were included in the stock. In these red cattle the muz...

Spath, L.F., 1926: On new ammonites from the English chalk. Geological Magazine London, 63: 77-83

Trolliet, P.; Nefti, H.; Dijoud, F.; Mercier, D.; Cahen, R.; Labeeuw, M., 1996: Interstitial cystitis and chronic intestinal pseudoobstruction revealing systemic lupus erythematosus. Journal of the American Society of Nephrology 7(9): 1783