scholarly journals Printing ink related chemicals, including synthetic phenolic antioxidants, organophosphite antioxidants, and photoinitiators, in printing paper products and implications for human exposure

2021 ◽  
Vol 149 ◽  
pp. 106412
Author(s):  
Runzeng Liu ◽  
Scott A. Mabury
Keyword(s):  
Human Exposure ◽  
Phenolic Antioxidants ◽  
Printing Paper ◽  
Synthetic Phenolic Antioxidants ◽  
Printing Ink

Preconcentration of synthetic phenolic antioxidants by using magnetic zeolites derived with carboxylatocalix[4]arenes combined with high performance liquid chromatography

The Analyst ◽  
2015 ◽  
Vol 140 (17) ◽  
pp. 5944-5952 ◽  
Author(s):  
Shaoyan Zhou ◽  
Zheng Li ◽  
Xueju Lv ◽  
Bin Hu ◽  
Qiong Jia
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Phenolic Antioxidants ◽  
Magnetic Zeolite ◽  
Synthetic Phenolic Antioxidants

A hybrid adsorbent assembling carboxylatocalix[4]arene onto the surface of magnetic zeolite was prepared and used for the preconcentration and determination of synthetic phenolic antioxidants coupled with HPLC.

Synthetic phenolic antioxidants to biodiesel: path toward NOx reduction of an unmodified indirect injection diesel engine

2014 ◽  
Vol 79 ◽  
pp. 82-90 ◽  
Author(s):  
I.M. Rizwanul Fattah ◽  
Masjuki Hj Hassan ◽  
Md Abul Kalam ◽  
Abdelaziz Emad Atabani ◽  
Md Joynul Abedin
Keyword(s):  
Diesel Engine ◽  
Nox Reduction ◽  
Phenolic Antioxidants ◽  
Synthetic Phenolic Antioxidants

scholarly journals Identification of In Vitro Metabolites of Synthetic Phenolic Antioxidants BHT, BHA, and TBHQ by LC-HRMS/MS

2020 ◽  
Vol 21 (24) ◽  
pp. 9525
Author(s):  
Ons Ousji ◽  
Lekha Sleno
Keyword(s):  
Isotope Labeling ◽  
Butylated Hydroxytoluene ◽  
Phenolic Antioxidants ◽  
Fragmentation Behavior ◽  
Accurate Mass Measurements ◽  
Oxidative Metabolites ◽  
Biotransformation Products ◽  
Pharmaceutical Industries ◽  
Synthetic Phenolic Antioxidants

Butylated hydroxytoluene (BHT) and its analogs, butylated hydroxyanisole (BHA) and tert-butyl-hydroquinone (TBHQ), are widely used synthetic preservatives to inhibit lipid oxidation in the food, cosmetic and pharmaceutical industries. Despite their widespread use, little is known about their human exposure and related biotransformation products. The metabolism of these compounds was investigated using in vitro incubations with human and rat liver fractions. Liquid chromatography coupled to high-resolution tandem mass spectrometry was employed to detect and characterize stable and reactive species formed via oxidative metabolism, as well as phase II conjugates. Several oxidative metabolites have been detected, as well as glutathione, glucuronide, and sulfate conjugates, many of which were not previously reported. A combination of accurate mass measurements, MS/MS fragmentation behavior, and isotope-labeling studies were used to elucidate metabolite structures.

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