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Recent developments in solid-phase microextraction for on-site sampling and sample preparation
On-site sampling and sample preparation favor portable, solventless or even solvent-free techniques. Solid-phase microextraction (SPME) has these advantages. This review focuses on developmentsExpand
A fluorometric paper-based sensor array for the discrimination of heavy-metal ions.
A fluorometric paper-based sensor array has been developed for the sensitive and convenient determination of seven heavy-metal ions at their wastewater discharge standard concentrations. CombiningExpand
Quantification of endogenous brassinosteroids in sub-gram plant tissues by in-line matrix solid-phase dispersion-tandem solid phase extraction coupled with high performance liquid
The proposed MSPD-MAX-MCX method showed higher extraction efficiency, lower matrix effect, and advantages of easy manipulation and time-saving compared with traditional liquid-liquid extraction and solid phase extraction (LLE-SPE). Expand
Array capillary in-tube solid-phase microextraction: a rapid preparation technique for water samples.
A rapid sample preparation technique, namely array capillary in-tube solid-phase microextraction (ACIT-SPME) for direct extraction of organic pollutants from water samples, was developed and evaluated, and the large surface area and thin extraction phase improved greatly both the mass transfer process of extraction and the thermo desorption process, leading to fast extraction and fast Desorption. Expand
Sorptive extraction techniques in sample preparation for organophosphorus pesticides in complex matrices.
This review focuses on the sorptive extraction techniques applied as sample pretreatment for OPPs in complex matrices, including solid-phase extraction (SPE) and solid- phase microextraction (SPME). Expand
Ultrasensitive quantification of endogenous brassinosteroids in milligram fresh plant with a quaternary ammonium derivatization reagent by pipette-tip solid-phase extraction coupled with
An ultra-sensitive quantification method was established for endogenous BRs in milligram fresh plant by using pipette-tip solid-phase extraction coupled with ultra-performance liquid chromatography tandem mass spectrometry (PT-SPE-UPLC-MS/MS). Expand
BODIPY-based fluorometric sensor array for the highly sensitive identification of heavy-metal ions.
The di-2-picolyamine (DPA) derivatives combine high affinities for a variety of heavy- metal ions with the capacity to perturb the fluorescence properties of BODIPY, making them perfectly suitable for the design of fluorometric sensor arrays for heavy-metal ions. Expand
Colorimetric sensors with different reactivity for the quantitative determination of cysteine, homocysteine and glutathione in a mixture
We report a facile method for the quantitative detection of cysteine (Cys), homocysteine (Hcy) and glutathione (GSH) in a mixture. BODIPY-based sensors 1 and 2 are synthesized, and the diverseExpand
Spatial Profiling of Gibberellins in a Single Leaf Based on Microscale Matrix Solid-Phase Dispersion and Precolumn Derivatization Coupled with Ultraperformance Liquid Chromatography-Tandem Mass
A spatial-resolved analysis method for profiling of gibberellins (GAs) in a single leaf was developed on the basis of microscale sample preparation and precolumn derivatization coupled withExpand
A vacuum assisted dynamic evaporation interface for two-dimensional normal phase/reverse phase liquid chromatography.
It was found that the sample loss due to evaporation in the interface was negligible for non-volatile samples or for components with boiling point above 340 degrees C. Expand