Recent progress of task‐specific ionic liquids in chiral resolution and extraction of biological samples and metal ions

Wu, Datong; Cai, Pengfei; Zhao, Xiaoyong; Kong, Yong

doi:10.1002/jssc.201700848

Cited by 50 publications

(21 citation statements)

References 120 publications

(144 reference statements)

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“…Task-specific ILs (TSILs), which obtained by tailoring either cationic or anionic of the IL structure with suitable combination of specific metal-chelating functional groups, have great potential in the field of metal preconcentration. TSILs are widely used for heavy metal extraction due to a complexing agent is not needed [20]. Another interesting IL modification is to incorporate a paramagnetic component in either the cation or anion of the IL structure.…”

Section: Lpme In Trace Element Determination: Historical Overviewmentioning

confidence: 99%

Metal applications of liquid-phase microextraction

Aguirre

Baile

Vidal

et al. 2019

TrAC Trends in Analytical Chemistry

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This review focuses on the combination of elemental detection techniques with liquidphase microextraction (LPME), namely, single drop microextraction, hollow fiber based liquid-phase microextraction, dispersive liquid-liquid microextraction, and related techniques. General features of different microextraction procedures, historical overview and automation of LPME are described and compared, along with examples of new developments and applications presented to demonstrate its potential for trace and ultra-trace metal analysis. Furthermore, potential applications and an outlook on the combination of LPME and elemental detection techniques for inorganic analysis are presented.

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Section: Lpme In Trace Element Determination: Historical Overviewmentioning

confidence: 99%

Metal applications of liquid-phase microextraction

Aguirre

Baile

Vidal

et al. 2019

TrAC Trends in Analytical Chemistry

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“…In the late 1970s, HSCCC was first introduced by Yoichiro Ito [2], which promoted the rapid development of liquid‐liquid chromatographic separation technology. Nowadays, the main applications of CCC involve separations and purifications of compounds in n products [3–4], isomers [5–8], amino acids [9], peptides [10], proteins [11], sterols [12], antibiotics [13], pesticides [14,15], environmental pollutants [16], inorganic compounds [17], and so on. The fundamental methodology of CCC is that multiple settling/mixing equilibrium of two immiscible liquid phase occurs to achieve the expected separation resolutions of different analytes in stationary phase or mobile phase according to their partition coefficient ( K D ) [2].…”

Section: Introductionmentioning

confidence: 99%

Recent progress in separation prediction of counter‐current chromatography

Guo

Tong

Zhang

et al. 2020

J of Separation Science

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As a liquid‐liquid partition chromatography, counter‐current chromatography has advantages in large sample loading capacity without irreversible adsorption, which has been widely applied in separation and purification fields. The main factors, including partition coefficient, two‐phase solvent systems, apparatus, and operating parameters greatly affect the separation process of counter‐current chromatography. To promote the applications of counter‐current chromatography, it is essential to develop theoretical research to master the principles of counter‐current chromatographic separations so as to achieve predictions before laborious trials. In this article, recent progress about separation prediction methods are reviewed from a point of the steady and unsteady state of the mass transfer process of counter‐current chromatography and its mass transfer characteristics, and then it is divided into three aspects: prediction of partition coefficient, modeling the thermodynamic process of counter‐current chromatography, and modeling the dynamic process of counter‐current chromatography.

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“…Compared with traditional organic solvents, ILs contain many unique physicochemical properties, which make ILs become a research hotspot in many fields. As new green solvent, ILs have been widely used in extraction, organic synthesis, catalysis, analytical chemistry, and other fields [10][11][12][13][14][15][16][17]. In the field of chromatographic analysis, ILs are used to enantioseparation in CE [18], stationary phases for GC [19] and LC [20], and mobile phase additives for LC [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous separation and indirect ultraviolet detection of chlorate and perchlorate by pyridinium ionic liquids in reversed‐phase liquid chromatography

Yin

Zhang

Guan

et al. 2020

J of Separation Science

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A novel approach for the simultaneous separation and indirect ultraviolet detection of chlorate and perchlorate using pyridinium ionic liquids as mobile phase additives in reversed-phase liquid chromatography was developed. Pyridinium ionic liquids and imidazolium ionic liquids as the mobile phase additives were compared. The effects of pyridinium ionic liquids, methanol, column temperature, and detection wavelength on the separation and detection of chlorate and perchlorate were investigated. The role of ionic liquids, retention rules and relevant mechanisms were discussed. Pyridinium ionic liquids mainly acted as ultraviolet absorption reagent and ion-pair reagent. The successful separation and indirect ultraviolet detection of chlorate and perchlorate were achieved by using a common reversed-phase column, 0.2 mmol/L N-octylpyridinium bromide aqueous solution/methanol (90/10, v/v) as mobile phase and at the detection wavelength of 210 nm. The retention times of chlorate and perchlorate were 30.51 and 37.06 min, respectively. The detection limits of chlorate and perchlorate were 0.16 and 0.29 mg/L, respectively. The linearity and repeatability of the method were satisfactory. The approach was used to the analysis of river water samples with accurate and reliable results. This method is easy to popularize due to the use of common reversed-phase column and ultraviolet detector in liquid chromatography.

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Recent progress of task‐specific ionic liquids in chiral resolution and extraction of biological samples and metal ions

Cited by 50 publications

References 120 publications

Metal applications of liquid-phase microextraction

Metal applications of liquid-phase microextraction

Recent progress in separation prediction of counter‐current chromatography

Simultaneous separation and indirect ultraviolet detection of chlorate and perchlorate by pyridinium ionic liquids in reversed‐phase liquid chromatography

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