Development, validation, and application of a liquid chromatography–tandem mass spectrometry method for the determination of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol in human hair

Ultrasound-assisted extraction followed by dispersive liquid–liquid microextraction before gas chromatography-mass spectrometry for the simultaneous determination of flavouring compounds in tobacco additives

(2012) Panpan Li et al.   Analytical Methods

A simple, rapid and sensitive ultraviolet-visible spectrophotometric technique for the determination of ultra-trace copper based on injection-ultrasound-assisted dispersive liquid–liquid microextraction

(2011) Xiaoxiang Liao et al.   ANALYST

Molecularly imprinted solid-phase extraction combined with ultrasound-assisted dispersive liquid–liquid microextraction for the determination of four Sudan dyes in sausage samples

(2011) Hongyuan Yan et al.   ANALYST

Glucuronide directed molecularly imprinted solid-phase extraction: isolation of testosterone glucuronide from its parent drug in urine

(2011) Serena Ambrosini et al.   ANALYST

A novel method of ultrasound-assisted dispersive liquid–liquid microextraction coupled to liquid chromatography–mass spectrometry for the determination of trace organoarsenic compounds in edible oil

(2011) Wei-Xun Wang et al.   ANALYTICA CHIMICA ACTA

Ultrasound-enhanced surfactant-assisted dispersive liquid–liquid microextraction and high-performance liquid chromatography for determination of ketoconazole and econazole nitrate in human blood

(2011) Yating Xia et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Determination of synthetic polycyclic musks in aqueous samples by ultrasound-assisted dispersive liquid–liquid microextraction and gas chromatography–mass spectrometry

(2011) Ching-Ya Yang et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

HS-SPME-GC×GC-qMS volatile metabolite profiling of Chrysolina herbacea frass and Mentha spp. leaves

(2011) Chiara Cordero et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Molecularly imprinted polymers for selective extraction of synephrine from Aurantii Fructus Immaturus

(2011) Jie-Ping Fan et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Hollow fiber-based liquid-phase microextraction (HF-LPME) of isradipine and its main metabolite followed by chiral HPLC analysis: application to an in vitro biotransformation study

(2011) Rodrigo Almeida Simões et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Quantum Dot-Based Headspace Single-Drop Microextraction Technique for Optical Sensing of Volatile Species

(2011) Isabel Costas-Mora et al.   ANALYTICAL CHEMISTRY

Hair analysis as a biomonitor for toxicology, disease and health status

(2011) Ivan M. Kempson et al.   CHEMICAL SOCIETY REVIEWS

Metabolic study of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone to the enantiomers of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol in vitro in human bronchial epithelial cells using chiral capillary electrophoresis

(2011) Youyou Yang et al.   JOURNAL OF CHROMATOGRAPHY A

Selective extraction of alkaloids in human urine by on-line single drop microextraction coupled with sweeping micellar electrokinetic chromatography

(2011) Wenhua Gao et al.   JOURNAL OF CHROMATOGRAPHY A

Hollow fiber liquid phase microextraction as a preconcentration and clean-up step after pressurized hot water extraction for the determination of non-steroidal anti-inflammatory drugs in sewage sludge

(2011) Abolfazl Saleh et al.   JOURNAL OF CHROMATOGRAPHY A

Ultra-preconcentration and determination of thirteen organophosphorus pesticides in water samples using solid-phase extraction followed by dispersive liquid–liquid microextraction and gas chromatography with flame photometric detection

(2011) Soheila Samadi et al.   JOURNAL OF CHROMATOGRAPHY A

Determination of clenbuterol in porcine tissues using solid-phase extraction combined with ultrasound-assisted dispersive liquid–liquid microextraction and HPLC–UV detection

(2010) Baomi Liu et al.   JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES

Microfluidic direct injection method for analysis of urinary 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL) using molecularly imprinted polymers coupled on-line with LC–MS/MS

(2010) Kumar A. Shah et al.   JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS

A new liquid chromatography/mass spectrometry method for 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL) in urine

(2010) Showket H. Bhat et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Chiral HPLC analysis of venlafaxine metabolites in rat liver microsomal preparations after LPME extraction and application to an in vitro biotransformation study

(2009) Patrícia da Fonseca et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Solid-phase extraction combined with dispersive liquid–liquid microextraction for the determination for polybrominated diphenyl ethers in different environmental matrices

(2009) Xiujuan Liu et al.   JOURNAL OF CHROMATOGRAPHY A

Solid-phase extraction followed by dispersive liquid–liquid microextraction for the sensitive determination of selected fungicides in wine

(2009) R. Montes et al.   JOURNAL OF CHROMATOGRAPHY A

A modified method for the determination of tobacco specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol in human urine by solid phase extraction using a molecularly imprinted polymer and liquid chromatography tandem mass spectrometry

(2009) Kumar A. Shah et al.   JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES

Reversed-phase dispersive liquid–liquid microextraction with central composite design optimization for preconcentration and HPLC determination of oleuropein

(2009) Payman Hashemi et al.   TALANTA

Subpicogram per Milliliter Determination of the Tobacco-Specific Carcinogen Metabolite 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol in Human Urine Using Liquid Chromatography−Tandem Mass Spectrometry

(2008) Peyton Jacob et al.   ANALYTICAL CHEMISTRY

Dispersive liquid–liquid microextraction combined with semi-automated in-syringe back extraction as a new approach for the sample preparation of ionizable organic compounds prior to liquid chromatography

(2008) Mahaveer B. Melwanki et al.   JOURNAL OF CHROMATOGRAPHY A