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

Accumulation of organotin compounds on mangroves in coastal ecosystems

2019 ◽  
Vol 99 (06) ◽  
pp. 1247-1252
Author(s):  
Madoka Ohji ◽  
Hiroya Harino ◽  
Ken-ichi Hayashizaki ◽  
Koji Inoue ◽  
Fatimah Md. Yusoff ◽  
...  
Keyword(s):  
East Asia ◽  
Degradation Products ◽  
Coastal Ecosystems ◽  
Organotin Compounds ◽  
Current Status ◽  
South East Asia ◽  
Mangrove Forests ◽  
Dominant Type ◽  
Sediment Samples ◽  
Butyltin Compounds

AbstractTo elucidate the details of both the current status of contamination and the accumulation of organotin compounds (OTs) in mangroves in coastal ecosystems, we determined the concentrations of butyltin compounds (BTs) and phenyltin compounds (PTs) in sediment and mangrove leaves collected from mangrove forests in Merambong and Tinggi Island, Malaysia. Butyltins were detected in all sediment samples collected from both regions, whereas PTs were not detected. The levels of tributyltin (TBT) compounds in the sediment samples were lower than those from previous studies conducted in Malaysia and at other sites in South-east Asia. In both Merambong and Tinggi Island, the average proportions of dibutyltin (DBT) and monobutyltin (MBT), which are degradation products of TBT, were ~70%. This result suggests that the input of TBT has decreased in Malaysia. The proportions of DBT and MBT in the sediment from Merambong were higher than those from Tinggi Island. The concentrations of TBT in mangrove leaves from Tinggi Island were significantly higher than those from Merambong. MBT was the most dominant type among the BTs in mangrove leaves from both Merambong and Tinggi Island. The ratios of the BTs burden in mangrove leaves to the BTs concentration in sediment from Merambong and Tinggi Island averaged 3.1 and 6.2, respectively. Among the values of BTs, the MBT values were found to be the highest in both regions.

scholarly journals Reactive Extraction of Tartaric Acid

2009 ◽  
Vol 4 (2) ◽  
pp. 28-33
Author(s):  
Natalia Marchitan
Keyword(s):  
Acid Solution ◽  
Tartaric Acid ◽  
Secondary Amine ◽  
Separation Process ◽  
Model Systems ◽  
Reactive Extraction ◽  
Acid Extraction ◽  
Stirring Time ◽  
Tartaric Acid Solution

The present paper describes the results of reactive extraction of tartaric acid in model systems, which can be used for its separation from secondary wine products. As extractant have been used a normal/isododecyl mixed secondary amine Amberlite LA-2. The following parameters of the separation process have been varied: nature of diluent and modifier; modifier concentration; concentration, temperature and pH of the tartaric acid solution and the stirring time, and the work intervals have been established. It was concluded that in determinated conditions the extent of tartaric acid extraction attains value 85-95%.

scholarly journals CHEMOMETRIC OPTIMIZATION OF AN EXTRACTION PROCEDURE USING TARTARIC ACID FOR BUTYLTIN COMPOUNDS FROM SEDIMENT SAMPLES BY GC-PFPD

2015 ◽  
Vol 60 (1) ◽  
pp. 2803-2806 ◽  
Author(s):  
MANUEL A BRAVO ◽  
MARCOS FLORES ◽  
SONNIA PARRA ◽  
WALDO QUIROZ ◽  
PAULETTE MAXWELL ◽  
...  
Keyword(s):  
Tartaric Acid ◽  
Extraction Procedure ◽  
Sediment Samples ◽  
Butyltin Compounds

scholarly journals Determination of organotin compounds in water and sediment samples by isotope dilution GC/MS.

1999 ◽  
Vol 48 (6) ◽  
pp. 555-561 ◽  
Author(s):  
Tomomi IWAMURA ◽  
Kiwao KADOKAMI ◽  
Daisuke JIN-YA ◽  
Yoshifumi HANADA ◽  
Manabu SUZUKI
Keyword(s):  
Isotope Dilution ◽  
Organotin Compounds ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Water And Sediment Samples

Seasonal changes in organotin compounds in water and sediment samples from the semi-closed Port of Gdynia

2012 ◽  
Vol 441 ◽  
pp. 57-66 ◽  
Author(s):  
Barbara Radke ◽  
Andrzej Wasik ◽  
Linda L. Jewell ◽  
Stuart Piketh ◽  
Urszula Pączek ◽  
...  
Keyword(s):  
Seasonal Changes ◽  
Organotin Compounds ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Water And 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).

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