Published in Talanta
A miniaturised high pressure 6-port injection valve has been designed and evaluated for its performance in order to facilitate the development of portable capillary high performance liquid chromatography (HPLC). The electrically actuated valve features a very small size (65 × 19 × 19 mm) and light weight (33 g), and therefore can be easily integrat...
Published in Talanta
Published in Talanta
Carbofuran is a highly toxic pesticide that is heavily used in agriculture due to its high effectiveness and low cost. Improved methods that are simpler and lower cost are needed for carbofuran detection in food and agricultural samples. Herein, we describe the development of a unique electrochemical method for carbofuran-phenol, which is the main ...
Published in Talanta
A real-time dynamic measurements of ammonia (NH3) is crucial for understanding the atmospheric nucleation process. A novel method was developed for on line monitoring at the sub-second time scale for the gaseous ammonia in ambient air for months, based on a positive inhaling ion mobility spectrometry (IMS) with a 63Ni ion source. The selective dete...
Published in Talanta
A headspace solid phase microextraction (HS-SPME) method combined with gas chromatography-mass spectrometry (GC/MS) was developed and optimized for extraction and analysis of volatile organic compounds (VOC) of leaves and galls of Myrcia splendens. Through a process of optimization of main factors affecting HS-SPME efficiency, the coating divivnilb...
Published in Talanta
A novel method for determination of platinum species by application of graphite furnace atomic absorption spectrometry (GFAAS) was developed. The principle of determination is the formation of platinum ion associates (IA) with SCN- and polymethine basic agent 1,3,3-trimethyl-2-[3-(1,3,3-trimethyl-1,3-dihydroindol-2-yliden)-propyl-1,3-dienyl]-3H-ind...
Published in Talanta
The development of advanced manufacturing techniques is crucial for the design of novel analytical tools with unprecedented features. Advanced manufacturing, also known as 3D printing, has been explored for the first time to fabricate modular devices with integrated features for disk-based automated solid-phase extraction (SPE). A modular device in...
Published in Talanta
A novel colorimetric method for the detection of tyrosinase (TYR) and its inhibitor by taking utilization of Ag+-3,3',5,5'-tetramethylbenzidine (TMB) detection system has been proposed. Ag+ could oxidize TMB to oxidized TMB (oxTMB) and induce a blue color solution corresponding to an absorption peak centered at 652nm. The addition of dopamine (DA) ...
Published in Talanta
A novel flowing liquid cathode glow discharge (LCGD) was developed as an excitation source of the atomic emission spectrometry (AES) for the determination of Ca and Zn in digested calcium and zinc gluconates oral solution and blood samples, in which the glow discharge is produced between the electrolyte (as cathode) overflowing from a quartz capill...
Published in Talanta
In this work, a TiO2 film was prepared on a MALDI plate by atomic layer deposition (ALD) technique and then modified with -NH2. The obtained TiO2-NH2 modified plate was applied for on-plate simultaneous enrichment of phosphopeptides and glycopeptides. The ALD TiO2 film displayed quite uniform morphology, and attached firmly to the MALDI plate with ...
