Solubility Measurement and Modeling of 2-Amino-4,6-dichoropyrimidine in Ten Pure Solvents and (Ethyl Acetate + Ethanol) Solvent Mixtures

2018 ◽  
Vol 63 (10) ◽  
pp. 3715-3726 ◽  
Author(s):  
Shasha Li ◽  
Yong Liu ◽  
Fan Yin ◽  
Xiangyue Ye
Keyword(s):  
Ethyl Acetate ◽  
Solvent Mixtures ◽  
Solubility Measurement

Reversed phase behaviour of high molecular mass polystyrenes in ethyl acetate solvent mixtures

1994 ◽  
Vol 39 (11-12) ◽  
pp. 663-667 ◽  
Author(s):  
R. A. Shalliker ◽  
P. E. Kavanagh ◽  
I. M. Russell
Keyword(s):  
Ethyl Acetate ◽  
Molecular Mass ◽  
Reversed Phase ◽  
High Molecular Mass ◽  
Phase Behaviour ◽  
Solvent Mixtures

Determination of Organophosphorus Nematicide Residues in Banana-Field Soils by Gas Chromatography/Mass Spectrometry

1994 ◽  
Vol 77 (6) ◽  
pp. 1580-1586
Author(s):  
Jean-François Cooper ◽  
Shan-Qiang Zheng ◽  
Nigel R Wynn ◽  
Louis Palcy
Keyword(s):  
Ethyl Acetate ◽  
West Indies ◽  
Solid Phase ◽  
Mass Spectrometric ◽  
Gas Chromatography Mass Spectrometry ◽  
Solvent Mixtures ◽  
Phase Extraction ◽  
Field Soils ◽  
Chromatographic Mass

Abstract Gas chromatographic/mass spectrometric (GC/MS) methodology is presented for the determination, in banana-field soils, of the 4 most used organophosphorus nematicides in Martinique (French West Indies): cadusafos (Rugby), ethoprophos (Mocap), isazophos (Miral), and fenamiphos (Nemacur). After extraction with 2 successive solvent mixtures, ethyl acetate–dichloromethane (8 + 2, v/v) and ethyl acetate–acetone (7 + 3, v/v), cleanup was performed using solid-phase extraction cartridges (silica SPE). Fenamiphos and its metabolites were separated in the second eluate and then oxidized to sulfone. Analysis was performed by GC/MS in fragmentometric mode. Recoveries varied from about 75 to 90%. Limits of quantitation varied from 4 to 20 μg/kg fresh soil sample, depending on the nematicide.

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