A simple dispersive liquid–liquid microextraction method for determination of Ag(I) by flame atomic absorption spectrometry

Dispersive Liquid-Liquid Microextraction of Bismuth in Various Samples and Determination by Flame Atomic Absorption Spectrometry

“…After the centrifugation, the organic phase was sedimented at the bottom of the centrifuge tube. The volume of final measurement solution was acquired approximately at 215 μ L. Then, a 50 μ L aliquot of this solution was rapidly introduced to the nebulizer of the flame atomic absorption spectrometer by using a microsyringe [ 43 – 45 ]. The bismuth signals were measured in the peak area mode utilizing the instrument software.…”

Label-free fluorescent aptasensor for chloramphenicol based on hybridization chain reaction amplification and G-quadruplex/N-methyl mesoporphyrin IX complexation

“…3,4 Nevertheless, the enrichment of CAP residues in the human body through food-borne bioaccumulation can have significant health effects, including leukemia, 5 gray baby syndrome, 6,7 and aplastic anemia. 8,9 Hence, the use of CAP in food-producing animals has been strictly regulated or banned in many countries. The European Union has set the maximum allowed performance limit of CAP at 0.3 μg kg −1 in various foods.…”

Dispersive liquid–liquid microextraction based on solidification of floating organic drop: Determination of nonsteroidal anti‐inflammatory drugs in water

“…When the sample solution is transferred into an ice bath where the temperature is below the melting point of the extraction solvent, the extractant turns into solid and floats on the surface of the sample solution, which makes the collecting procedure much simpler [18]. Up to now, DLLME‐SFOD has been used for the extraction of polycyclic aromatic hydrocarbons [19] and some metal ions [20, 21]. However, to the best of our knowledge, the optimization of DLLME‐SFOD for the extraction of pharmaceuticals in an aqueous environment is still scarce.…”