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A Study of the Metabolism of Ibutamoren (MK-677), a Growth Hormone Secretagogue, in Human Urine by Ultra-High-Performance Liquid Chromatography–High-Resolution Mass Spectrometry
AbstractThe metabolism of Ibutamoren (MK-677), a nonpeptide growth hormone secretagogue, was investigated by analyzing human urine samples collected...
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Multiresidue Determination of Fungicides in Wine by Solvent Demulsification-Dispersive Liquid-Liquid Microextraction and Ultra-High Performance Liquid Chromatography–Tandem Mass Spectrometry
Fungicides are applied from plant development to grape production, transport, and storage. Even after fruit processing, residues of these compounds...
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Direct Determination of 2-Acetyl-1-Pyrroline in Rice by Ultrasound-Assisted Solvent Extraction Coupled with Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry
In this paper, we present a novel direct detection method for the characteristic fragrant component 2-acetyl-1-pyrroline (2-AP) in rice by using...
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Methyl (S)-2-(1–7 (5-fluoropentyl)-1H-indole-3-carboxamido)-3,3-dimethylbutanoate (5F-MDMB-PICA) intoxication in a child with identification of two new metabolites (ultra-high-performance liquid chromatography–tandem mass spectrometry)
PurposeMethyl (S)-2-(1–7 (5-fluoropentyl)-1H-indole-3-carboxamido)-3,3-dimethylbutanoate (5F-MDMA-PICA) intoxication in 1.5-year-old child was...
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Determination of Ketosteroids in Human Urine Using Dispersive Liquid-Liquid Microextraction and Ultra High-Performance Liquid Chromatography-High Resolution Mass Spectrometry
AbstractA method is proposed for the determination of some ketosteroids in human urine, including enzymatic hydrolysis using β-glucuronidase from E....
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High Performance Liquid Chromatography
The great success of gas chromatography inspired scientist to enhance liquid chromatography as GC was not applicable to compounds that are not...
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Screening of Antimicrobial Residues in Muscle fromDifferent Species by Liquid Chromatography Coupled with Tandem Mass Spectrometry
A screening methodology for the analysis of 46 antimicrobial (ATB) residues has been developed and validated for application in muscle samples...
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Correlation between vitamin D metabolites and rheumatoid arthritis with osteoporosis by ultra-high-performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS)
IntroductionOur aim is to study the correlation between vitamin D metabolites and osteoporosis in rheumatoid arthritis (RA) by ultra-high-performance...
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Determination of Steroid Hormones in Human Saliva by High-Performance Liquid Chromatography with Tandem Mass Spectrometry Detection
AbstractA method is developed for the simultaneous determination of steroid hormones of various classes (androgens, progestins, and glucocorticoids)...
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Rapid Simultaneous Analysis of Ten Biogenic Amines in Aquatic Products by Ultra-high-performance Supercritical Fluid Chromatography Combined with Mass Spectrometry
A method for accurate, reliable, ultra-high-performance supercritical fluid chromatography (UHPSFC) coupled with mass spectrometry for the...
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Simultaneous Determination of Eight Phenolic Acids in Rapeseed by Accelerated Solvent Extraction-Solid Phase Extraction Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry
This work establishes an effective detection method for simultaneous determination of eight phenolic acid compounds in rapeseed by combing...
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Analysis and Annotation of Phospholipids by Mass Spectrometry-Based Metabolomics
Phospholipids are essential components of membrane lipid bilayers and serve as precursors of multiple signaling molecules, so alterations in their...
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Mass Spectrometry-Based Metabolomics Multi-platform for Alzheimer’s Disease Research
The integration of complementary analytical platforms is nowadays the most common strategy for comprehensive metabolomics analysis of complex...
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Liquid chromatography and differential mobility spectrometry—data-independent mass spectrometry for comprehensive multidimensional separations in metabolomics
The benefits of combining drift time ion mobility (DTIMS) with liquid chromatography–high-resolution mass spectrometry (HRMS) have been reported for...
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Determination of N-nitro-, C-nitro-, and C-nitrous-type Compounds in Meat Products by d-SPE Extraction and Liquid Chromatography Coupled to Mass Spectrometry
This method is intended for the extraction of 2-methyl-1,4-dinitropyrrol (DNMP), 1-nitro-2-methyl-3-amino pyrrole (NMAP), and ethylnitrolic acid...
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Gas Chromatography/Mass Spectrometry
Gas chromatography/mass spectrometry (GC/MS) is a powerful analytical technique used for the analysis of complex organic mixtures. It provides...
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Screening of Contaminants of Emerging Concern (CECs) in Fish and Milk Samples by Liquid Chromatography Coupled with High-Resolution Tandem Mass Spectrometry (LC-HRMS/MS)
Contaminants of emerging concern (CECs) have been the main focus of food toxicology and environmental chemistry in recent years due to their extended...
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Automated liquid–liquid deep eutectic solvents based microextraction procedure for determination of acrylamide in foodstuffs by high-performance liquid chromatography with ultraviolet detection
For the rapid and efficient determination of acrylamide in food products by HPLC-UV, an environmentally friendly analytical approach has been...
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Gas Chromatography and Mass Spectrometry: The Technique
Combining the techniques of gas chromatography and mass spectrometry provides conjunction with a confirmatory character, which has a great power of...
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Assessment of pheniramine in alternative biological matrices by liquid chromatography tandem mass spectrometry
Pheniramine is an over-the-counter antihistamine drug. Its accessibility and low cost made it more popular among drug abusers in Pakistan. In this...
