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Today, β-naphthol pigments are amongst the largest and most widely used classes of synthetic organic pigments. Their application fields range from textile, food and beverages, printing inks, plastics, to paint formulations. Most of the research dealing with their study by mass spectrometry focuses on developing sensitive methods for their quantification, or their removal from industrial wastewater. Their qualitative recognition in formulations whose composition is undisclosed by the manufactures has not been tackled yet.
This article was published in the following journal.
Name: Rapid communications in mass spectrometry : RCM
In the field of natural products, dereplication of complex mixtures hasbecomes usual practice to annotate known compounds and avoid their re-isolation. To this purpose, many groups rely on liquid chro...
Coumarin is one of the basic structures of naturally oxygen heterocyclic compound, which was investigated in this paper for its gas-phase fragmentation behaviors using electrospray quadrupole extracti...
Electrospray thrusters using ionic liquid-based propellants are quickly gaining popularity in spacecraft design. Mass spectrometry is especially well-suited to provide important knowledge on the funda...
This study reports the development and application of a liquid chromatography method coupled to electrospray tandem mass spectrometry (LC-MS/MS) for the identification and quantification of the five m...
Bisphenol A (BPA) metabolism has been investigated using several in vitro models, including human and rat liver microsomes and subcellular (S9) fractions, as well as human-recombinant Cytochrome P450 ...
A 24-hour Caffeine Intake Recall (CIR-24) was developed to estimate caffeine consumption in the previous 24 hours, modeled after the Automated Self-Administered 24-hour Dietary Assessment ...
Age-related macular degeneration (AMD) is the leading cause of blindness in the United States. Low dietary intake or low blood levels of lutein and zeaxanthin, which are the only pigments...
RATIONALE: Finding a better way to measure levels of sex hormones in the blood may help doctors monitor cancer in future patients. PURPOSE: This study is looking at different ways of meas...
This is a study designed to validate Kawamura´s theory and investigation of activation of primordial follicles through ovarian cortex fragmentation. Our aim is to evaluate embryo quality ...
RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about the affect of body mass index on the way anticancer drugs work in the bod...
Hydrolytic enzyme activity used as a histocytochemical test for the presence of esterases in tissue. Substrate used is 3-hydroxy-4'-nitro-2-naphthanilide chloroacetate (naphthol AS-D).
Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.
A method of separation of two or more substances by repeated distribution between two immiscible liquid phases that move past each other in opposite directions. It is a form of liquid-liquid chromatography. (Stedman, 25th ed)
Chromatographic techniques in which the mobile phase is a liquid.
Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...