Magnetic nanoparticles (MNPs) are attracting increasing attention in bioanalysis, due to their large surface area and excellent steerable properties. Meanwhile, the booming development of microfluidics is offering a faster, lower consumption, more effective approach bioanalysis. MNPs-assisted microfluidic bioanalysis enables enhanced analytical performance by introducing functionalized magnetic...

While traditional Chinese medicine (TCM) is considered a valuable resource for drug discovery and form potential basis development, they also carry substantial safety risks due to adverse reactions lack of understanding their mechanisms action. However, highly complex composition, valid analytical methodologies analyzing TCMs must be developed promoted. An extensive search published research re...

INTRODUCTION There has been considerable interest in the determination of anions at trace levels by IC. For example, the Electric Power Research Institute (EPRI) has established IC as the analytical technique for determining sodium, chloride, and sulfate down to 0.25 μg/L (ppb) in power plant waters. For high-purity water used in semiconductor processing, the Semiconductor Equipment and Materia...

A cloud point extraction (CPE) process was described for the separation and spectrophotometric analysis of Fe(III) in different water samples blood as chelating agent. The complexation reaction between Zincon elaborated at pH 5.0 using acetate buffer complex quantitatively recovered a mixed micelle system composed cethyltri methyl ammonium bromide (CTAB) Triton X-114. This carried out room temp...

Two flow injection inductively coupled plasma atomic emission spectrometric methods for the preconcentration and determination of trace amounts of cadmium in sea-water and waste-water samples are described based on the adsorption of the metal ion on a micro-column placed in the injection valve of the FI manifold and packed with silica gel funtionalised with 1,5-bis(di-2-pyridyl) methylene thioc...

A cation-selective microfluidic sample preconcentration system is described. The cation sample was electropreconcentrated using a reversed-direction electroosmotic flow (EOF) and an anion-permselective filter, where an electric double layer (EDL) overlap condition existed. The anion-permselective filter between microchannels was fabricated by three different methods: 1) extending a positively c...

a new approach for a cloud point extraction-electrothermal atomic absorption spectrometric method was used for determining bismuth. the aqueous analyte was acidified with sulfuric acid (ph 3.0–3.5). triton x-114 was added as a surfactant and 2-amino-cyclopentene-1-dithiocarboxylic acid was used as a complexing agent. after phase separation at 50 ◦ c based on the cloud point separation of the mi...