+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

On-line preconcentration and GFAAS determination of trace metals in waters

, : On-line preconcentration and GFAAS determination of trace metals in waters. Microchemical Journal 67(1-3): 181-185, December

An on-line separation preconcentration system coupled to electrothermal (graphite furnace) atomic absorption spectrometry was developed. A miniature column packed with iminodiacetic acid ethyl cellulose (IDAEC) was inserted into the loop. A peristaltic pump was used to deliver solutions. A flow of air was driven into the packed column, evacuating it between sample loading, washing and elution. The retained analyte was introduced on-line to graphite furnace using countercurrent elution with HNO3. The system was applied for the determination of V, Co and Pb in medicinal mineral water samples, and nickel in sea water samples. The detection limits (3sigma) were 0.058, 0.022, 0.067, 0.062 mug/1 for Co, Pb, V, and Ni, respectively. The R.S.D. (n = 5) was <5% at 0.4-1.0 mug/1 concentration range.


DOI: 10.1016/s0026-265x(00)00115-6

Other references

Klumpp, F.; Klaus, D., 1978: Effect of oral contraceptives on the capacity to stimulate plasma renin activity and plasma aldosterone. Die Medizinische Welt 29(6): 228-231

Ibrahim, G.M.; Cassel, D.; Morgan, B.R.; Smith, M.Lou.; Otsubo, H.; Ochi, A.; Taylor, M.; Rutka, J.T.; Snead, O.Carter.; Doesburg, S., 2014: Resilience of developing brain networks to interictal epileptiform discharges is associated with cognitive outcome. The effects of interictal epileptiform discharges on neurocognitive development in children with medically-intractable epilepsy are poorly understood. Such discharges may have a deleterious effect on the brain's intrinsic connectivity network...

Faelten, Sharon, 1981: The complete book of minerals for health. Minerals are essential to good health, although the general public seems to know little about them. Descriptions of 22 minerals (e.g., calcium, zinc, copper, chromium, and vanadium) include their role in the body, food sources, and interactions wi...

Barrington K.J., 1992: The effects of sleep state and hypoxia on electromyographic activity of the genioglossus in the newborn piglet. Pediatric Research 31(4 PART 2): 300A

Kriegova, E.; Melle, C.; Kolek, V.; Hutyrova, B.; Mrazek, F.; Bleul, A.; du Bois, R.M.; von Eggeling, F.; Petrek, M., 2006: Protein profiles of bronchoalveolar lavage fluid from patients with pulmonary sarcoidosis. Background: Pulmonary sarcoldosis is a multisystem granulomatous disease with various clinical phenotypes. So far, there has been little information on protein patterns (PPs) of bronchoalveolar lavage fluid (BALF) from patients with sarcoidosis an...

Anderson L.D.; Delaney M.L., 2005: Use of multiproxy records on the Agulhas Ridge, Southern Ocean (Ocean Drilling Project Leg 177, Site 1090) to investigate sub-Antarctic hydrography from the Oligocene to the early Miocene. Ocean Drilling Program (ODP) Site 1090, on the Agulhas Ridge in the South Atlantic sector of the Southern Ocean, is ideally located to capture changes in Southern Ocean circulation patterns. Using samples taken from cored sediments, we construct m...

Anonymous, 2002: Payment limitations will be on line again as Congress moves into appropriations. Southwest Farm Press 29(20): 3

Ron, D.; Jurd, R., 2005: The "ups and downs" of signaling cascades in addiction. Drug addiction is a chronic disease characterized by compulsive drug use despite the severe negative consequences associated with it. Repeated exposure to drugs of abuse results in molecular adaptations in neuronal signaling pathways, which eventu...

DeCostanzo, D.C.; Elias, J.M.; Chumas, J.C., 1997: Necrosis in 84 ovarian carcinomas: a morphologic study of primary versus metastatic colonic carcinoma with a selective immunohistochemical analysis of cytokeratin subtypes and carcinoembryonic antigen. Carcinomas metastatic to the ovary are often difficult to distinguish from primary ovarian carcinomas. Adenocarcinoma of the colon may simulate both primary endometrioid and mucinous ovarian tumors. The histologic finding of "dirty" necr...

Harrison E.H.; Blaner W.S.; Goodman D.S.; Ross A.C., 1987: Subcellular localization of retinoids retinoid binding proteins and acyl coenzyme a retinol acyltransferase in rat liver. Studies were conducted to define the subcellular localization of endogenous retinoids (vitamin A), retinoid-binding proteins, and acyl-CoA:retinol acyltransferase (ARAT) in liver and to determine whether their distributions were affected by hepati...