Determination of phthalate acid esters plasticizers in polyethylene terephthalate bottles and its correlation with some physicochemical properties

2018 ◽  
Vol 68 ◽  
pp. 87-94 ◽  
Author(s):  
Daniel Salazar-Beltrán ◽  
Laura Hinojosa-Reyes ◽  
Carlos Palomino-Cabello ◽  
Gemma Turnes-Palomino ◽  
Aracely Hernández-Ramírez ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Polyethylene Terephthalate ◽  
Polyethylene Terephthalate Bottles ◽  
Acid Esters ◽  
Phthalate Acid Esters

Determination of various constituent elements of polyethylene terephthalate bottles used for beverages in Japan

2020 ◽  
Vol 33 (4-5) ◽  
pp. 183-193 ◽  
Author(s):  
Eri Kishi ◽  
Asako Ozaki ◽  
Tomoko Ooshima ◽  
Yutaka Abe ◽  
Motoh Mutsuga ◽  
...  
Keyword(s):  
Polyethylene Terephthalate ◽  
Polyethylene Terephthalate Bottles ◽  
Constituent Elements

Analysis of Pesticide Residues by Chemical Derivatization. II. N-Methylcarbamates in Natural Water and Soils

1976 ◽  
Vol 59 (1) ◽  
pp. 188-196
Author(s):  
John A Coburn ◽  
Brian D Ripley ◽  
Alfred S Y Chau
Keyword(s):  
Potassium Hydroxide ◽  
Natural Waters ◽  
Extraction Procedure ◽  
Potassium Hydroxide Solution ◽  
Gas Liquid Chromatography ◽  
Chemical Derivatization ◽  
Hydrolysis Products ◽  
Acid Esters ◽  
Phthalate Acid Esters

Abstract A method for the quantitative determination of several N-methylcarbamates in natural waters and the applicability of the derivative to soil samples using a previously published extraction procedure are described. After extraction of the carbamates from the substrate, the carbamates are hydrolyzed in a 10% methanol-potassium hydroxide solution to form the phenolic hydrolysis products, which are isolated and derivatized with pentafluorobenzyl (PFB) bromide to produce the PFB ether derivatives. The PFB derivatives are cleaned up and fractionated on a silica gel microcolumn and determined by electron capture gas-liquid chromatography (GLC). Eight organophosphate pesticides and 2 phthalate acid esters that hydrolyze to phenols or phthalic acid were evaluated as potential interferences and were found not to interfere with any of the carbamates tested. Quantitative determinations of 0.1 μg carbofuran and 3-ketocarbofuran and 0.5 μg carbaryl, metmercapturon, and Mobam in a 1 L water sample are possible. Propoxur was not determined at levels <1 μg/L due to the short GLC retention time of the derivative and interferences from the reagents at the lower levels.

Determination of phthalate acid esters (PAEs) in carbonated soft drinks with MSPE/GC–MS method

Toxin Reviews ◽  
2017 ◽  
Vol 37 (4) ◽  
pp. 319-326 ◽  
Author(s):  
Mojtaba Moazzen ◽  
Amir Hossein Mahvi ◽  
Nabi Shariatifar ◽  
Gholamreza Jahed Khaniki ◽  
Shahrokh Nazmara ◽  
...  
Keyword(s):  
Soft Drinks ◽  
Carbonated Soft Drinks ◽  
Acid Esters ◽  
Phthalate Acid Esters
Sign in / Sign up

Export Citation Format

Share Document