Acid extraction treatment of sediment samples for organotin speciation; occurrence of butyltin and phenyltin compounds on the cadiz coast, south-west spain

1995 ◽  
Vol 9 (1) ◽  
pp. 51-64 ◽  
Author(s):  
J. L. Gomez-ariza ◽  
R. Beltrán ◽  
E. Morales ◽  
I. Giraldez ◽  
M. Ruiz-benitez
Keyword(s):  
Acid Extraction ◽  
Sediment Samples ◽  
South West ◽  
Extraction Treatment

Behaviour and mobility of U and Ra in sediments near an abandoned uranium mine, Cornwall, UK

2015 ◽  
Vol 17 (1) ◽  
pp. 235-245 ◽  
Author(s):  
Saifeldin M. Siddeeg ◽  
Nicholas D. Bryan ◽  
Francis R. Livens
Keyword(s):  
Uranium Mine ◽  
Sediment Samples ◽  
South West ◽  
Geochemical Dispersion

Sediment samples were collected from the vicinity of the abandoned South Terras uranium mine in south-west UK and analysed for uranium and 226Ra to explore their geochemical dispersion.

Acid/extraction treatment of bivalves for organotin speciation

1997 ◽  
Vol 357 (7) ◽  
pp. 1007-1009 ◽  
Author(s):  
J. L. Gomez-Ariza ◽  
E. Morales ◽  
I. Giraldez ◽  
R. Beltran ◽  
J. A. Pozas Escobar
Keyword(s):  
Acid Extraction ◽  
Extraction Treatment

scholarly journals Livestock and Small-Scale Irrigation Scheme Interactions as a Key Source for Sedimentation during the Irrigation Season: Four Case Studies from South-West Shoa, Ethiopia

2021 ◽  
Vol 13 (10) ◽  
pp. 5745
Author(s):  
Hanan Tadele Dessalegn ◽  
Alex Bolding ◽  
Charlotte de Fraiture ◽  
Mekonen Ayana
Keyword(s):  
Suspended Sediment ◽  
Overland Flow ◽  
Small Scale ◽  
Irrigation Season ◽  
Irrigation Scheme ◽  
Sediment Samples ◽  
South West ◽  
Canal Network ◽  
Small Scale Irrigation ◽  
Upstream Catchment

Small-scale irrigation (SSI) development can play a major role in Ethiopia’s economic development, but sedimentation is a major threat to its sustainability. The focus of the dominant discourse around the sedimentation of SSI schemes lies in upstream catchment protection during the rainy season, neglecting both protection against erosion through overland flow along the margins of the canal network and sedimentation caused by livestock disturbances. Remedies against the latter causes of sedimentation during the irrigation season have been ineffective due to erroneous assumptions regarding its cause. This study aimed to identify the sources and extent of sedimentation in SSI schemes. The accumulated sediment in the canal pre-irrigation season was measured from four SSI schemes and suspended sediment samples during irrigation season were collected from one SSI scheme. The accumulated sediment in the canal pre-irrigation season was measured from four SSI and suspended sediment samples during irrigation season were collected from one SSI scheme. The extent of sedimentation in the canals during the pre-irrigation season in relation to canal capacity was 100% of lined and unlined canals in abandoned, 68% in a lined, and 84% unlined canals in heavily sedimented and 38% in a lined and 46% of unlined canals lightly sedimented schemes. Livestock interactions with the SSI schemes were found to be the major sediment source before and during the irrigation, hence, attention should be given to integrating livestock as a part of the system.

Tartaric acid extraction of organotin compounds from sediment samples

2011 ◽  
Vol 98 (1) ◽  
pp. 129-134 ◽  
Author(s):  
Marcos Flores ◽  
Manuel Bravo ◽  
Hugo Pinochet ◽  
Paulette Maxwell ◽  
Zoltán Mester
Keyword(s):  
Tartaric Acid ◽  
Organotin Compounds ◽  
Acid Extraction ◽  
Sediment Samples

Ultrastructural localization of specific nucleoprotein fractions

1978 ◽  
Vol 36 (2) ◽  
pp. 204-205
Author(s):  
G. L. Brown
Keyword(s):  
Gel Electrophoresis ◽  
Mouse Liver ◽  
Polyacrylamide Gel Electrophoresis ◽  
Ultrastructural Localization ◽  
Polyacrylamide Gel ◽  
Acid Extraction ◽  
Acid Solutions ◽  
Low Salt ◽  
Liver Nuclei ◽  
Phosphate Groups

Bismuth (Bi) stains nucleoproteins (NPs) by interacting with available amino and primary phosphate groups. These two staining mechanisms are distinguishable by glutaraldehyde crosslinking (Fig. 1,2).Isolated mouse liver nuclei, extracted with salt and acid solutions, fixed in either formaldehyde (form.) or gl utaraldehyde (glut.) and stained with Bi, were viewed to determine the effect of the extractions on Bi stainina. Solubilized NPs were analyzed by SDS-polyacrylamide gel electrophoresis.Extraction with 0.14 M salt does not change the Bi staining characteristics (Fig. 3). 0.34 M salt reduces nucleolar (Nu) staining but has no effect on interchromatinic (IC) staining (Fig. 4). Proteins responsible for Nu and glut.- insensitive IC staining are removed when nuclei are extracted with 0.6 M salt (Fig. 5, 6). Low salt and acid extraction prevents Bi-Nu staining but has no effect on IC staining (Fig. 7). When nuclei are extracted with 0.6 M salt followed by low salt and acid, all Bi-staining components are removed (Fig. 8).

Abstract #614 Pattern of Thyroid Disorders in Sagamu, South-West Nigeria

2019 ◽  
Vol 25 ◽  
pp. 317
Author(s):  
Ayotunde Ale ◽  
Opeyemi Aloro ◽  
Ayanbola Adepoju
Keyword(s):  
Thyroid Disorders ◽  
South West

Abstract #295 Epidemiologic and Clinical Characteristics of Diabetic Foot Ulcers – Report From South West Nigeria

2019 ◽  
Vol 25 ◽  
pp. 121-122
Author(s):  
Olufunmilayo Adeleye ◽  
Ejiofor Ugwu ◽  
Anthonia Ogbera ◽  
Akinola Dada ◽  
Ibrahim Gezawa ◽  
...  
Keyword(s):  
Diabetic Foot ◽  
Clinical Characteristics ◽  
Foot Ulcers ◽  
Diabetic Foot Ulcers ◽  
South West
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