We report herein the selective array-based detection of 30 persistent organic pollutants via cyclodextrin-promoted energy transfer. The use of three fluorophores enabled the development of an array that classified 30 analytes with 100% accuracy and identified unknown analytes with 96% accuracy, as well as identifying 92% of analytes in urine.

a multiple linear regression model is proposed to calculate capacity factor of  analytes using structural features computed using hyperchem software. the  chemical descriptors of analytes were computed using hyperchem software and  regressed against the experimental capacity factors of analytes collected from the  literature. the absolute average percentage deviation (aard) and individual perce...

protein quantitation that obtains precise and sensitive measurements of specific target analytes in complex biological samples. Prior to performing MRM, many peptide analytes require an enrichment step to achieve sufficient sensitivity in the assay. Coupling a peptide immunoaffinity enrichment step to MRM (i.e. an immuno-MRM assay) is effective for most analytes and provides high sensitivity an...

We introduce digital microfluidic interface between solid-phase microextraction (SPME) and liquid chromatography. In the new system, a SPME fiber is used to extract analytes from a complex sample, and is then inserted into a DMF device. Solvent droplets are then used to extract analytes from the fiber with continuous actuation, followed by analysis with liquid chromatography (LC) and mass spect...

a sensitive and selective solid phase extraction procedure for the determination of traces of cd(ii),zn(ii) and ag(i) ions has been developed. an alumina-sodium dodecyl sulfate (sds) coated on with2,3 di hydro 2,3 para tolyl qinazoline (1 h)- 4 one (dptqo). the influences of the analyticalparameters including ph and sample volume were investigated. common coexisting ions did notinterfere on the...

an air–assisted liquid–liquid microextraction method for the extraction and preconcentration of trace amounts of some synthetic phenolic antioxidants in biological fluids followed by their determination by gas chromatography–flame ionization detection has been reported. in this method the target analytes are extracted into a few microliters of carbon tetrachloride (extraction solvent) from an a...