Dispersive liquid-liquid microextraction (DLLME) coupled with gas chromatography-mass spectrometry (GC-MS) has been developed for preconcentration and determination of tramadol, ((±)-cis-2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol-HCl), in aqueous and biological samples (urine, blood). DLLME is a simple, rapid and efficient method for determination of drugs in aqueous samples. Eff...

The lower mycotoxin levels detected in urine make the development of sensitive and accurate analytical methods essential. Three extraction methods, namely salting-out liquid-liquid extraction (SALLE), miniQuEChERS (quick, easy, cheap, effective, rugged, and safe), and dispersive liquid-liquid microextraction (DLLME), were evaluated and compared based on analytical parameters for the quantitativ...

an efficient, rapid, simple, and highly selective dispersive liquid–liquid microextraction basedon solidification of floating organic drop (dllme-sfod), combined with flame atomicabsorption spectrometry was developed for preconcentration and determination of trace amountsof cobalt in water samples. in this method, an appropriate mixture of acetone and1-undecanol was injected rapidly into the aq...

A simple, rapid, and sensitive method for the detection of posaconazole using dispersive liquid-liquid microextraction (DLLME) coupled to surface-assisted laser desorption/ionization mass spectrometric detection (SALDI/MS) was developed. After the DLLME, posaconazole was detected using SALDI/MS with colloidal gold and α-cyano-4-hydroxycinnamic acid (CHCA) as the co-matrix. Under optimal extract...

An efficient, rapid, simple, and highly selective dispersive liquid–liquid microextraction basedon solidification of floating organic drop (DLLME-SFOD), combined with flame atomicabsorption spectrometry was developed for preconcentration and determination of trace amountsof cobalt in water samples. In this method, an appropriate mixture of acetone and1-undecanol was injected rapidly into the aq...

In the current study, an effective and simple procedure of extraction for four benzophenone compounds from water samples was achieved by dispersive liquid–liquid microextraction (DLLME) based on solidification floating organic droplets (SFO) with a natural monoterpene enol as extractant. As natural, high point, inexpensive, environmentally friendly hydrophobic solvent, α−terpineol selected firs...

Source-free object detection (SFOD) aims to transfer a detector pre-trained on label-rich source domain an unlabeled target without seeing data. While most existing SFOD methods generate pseudo labels via source-pretrained model guide training, these usually contain high noises due heavy discrepancy. In order obtain better supervisions, we divide the into source-similar and source-dissimilar pa...

Recent increased demand for stingless bee honey in Malaysia have stimulated alternative methods to increase honey yields by using plastic cups as artificial honey pots within the beehives. However, honey’s acidity may lead to possible migration of plastic additives, where prolonged consumption may affect body’s physiological responses. This study was carried out to determine the presence of dib...

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants and well-known carcinogens. Hydroxy derivatives of PAH are considered as biomarkers of PAH exposure, and there is a need to measure these metabolites at low concentrations. So, a precise and eco-friendly analytical method has been developed for rapid determination of PAH metabolites. For the first time, a new analyt...

the antibiotic residues in milk are a well-known serious problem and pose several health hazards to consumers. we have described a simple, rapid, and inexpensive dllme-hplc/uv technique for the extraction of chloramphenicol and florfenicol residues in milk samples. under the optimum conditions, linearity of the method was observed over the range 0.02-0.85 µg/l with correlation coefficients > 0....