Stereoselective quantification of triticonazole in vegetables by supercritical fluid chromatography

Tan, Qi; Fan, Jun; Gao, Ruiqi; He, Ronghai; Wang, Tai; Yao-mou, Zhang; Zhang, Weiguang

doi:10.1016/j.talanta.2016.08.077

Cited by 50 publications

(14 citation statements)

References 31 publications

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“…[1][2][3][4] Most chiral pesticides are sold as the racemic mixture for some limitations, 5 and only 7% chiral pesticides are marketed as the pure isomer or as an enriched mixture of the active isomer, 6 such as S-metolachlor. In the 1950s, thalidomide was utilized to alleviate morning sickness in pregnant women, but many infants were born with phocomelia because of the ignorance of the activity difference between the thalidomide isomers.…”

Section: Introductionmentioning

confidence: 99%

“…Chiral pesticide is part of chiral agent, and chiral pesticides currently constitute about 28% of all pesticides used. [1][2][3][4] Most chiral pesticides are sold as the racemic mixture for some limitations, 5 and only 7% chiral pesticides are marketed as the pure isomer or as an enriched mixture of the active isomer, 6 such as S-metolachlor. The use of only the active isomer is beneficial in some ways, 7 such as reducing the amount of pesticide used in the environment and increasing the control efficacy of pesticide.…”

Section: Introductionmentioning

confidence: 99%

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The different dissipation behavior of chiral pesticide paclobutrazol in the brine during Chinese cabbage pickling process

et al. 2019

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Paclobutrazol (PBZ) is a kind of chiral pesticide, which is a plant growth regulator and has fungicidal activity. Because of the steric-hindrance effect, there are two enantiomers (2S, 3S; 2R, 3R) in the production. This research studied on the dissipation behavior of chiral pesticide PBZ in the brine during the Chinese cabbage pickled process by phase column-high performance liquid chromatography (HPLC). The result demonstrated the PBZ enantiomers had the different dissipation in the brine. The study on the behavior of chiral pesticide PBZ in food may provide more sufficient data and information for understanding the potential risk in food and evaluating the environmental pollution at the enantiomer level.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The different dissipation behavior of chiral pesticide paclobutrazol in the brine during Chinese cabbage pickling process

et al. 2019

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“…In recent years, as a new analysis technique, supercritical fluid chromatography (SFC) has attracted more and more attention from the researchers due to its better selectivity, environmental friendliness, and shorter analysis time. [14][15][16] SFC uses low-viscosity CO 2 as the main mobile phase that allows higher operational flow rates and lower consumption of organic solvents than HPLC or CE. And it also can be combined with a large number of chiral stationary phases.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐performance convergence chromatography with tandem mass spectrometry‐assisted method for rapid enantioseparation and determination of fluazifop‐butyl in tobacco and soil

et al. 2019

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A quick, green, and sensitive method for chiral separation and determination of fluazifop-butyl enantiomers in tobacco and soil was established by ultraperformance convergence chromatography with tandem mass spectrometry (UPC 2 -MS/MS). The baseline separation was obtained on an ACQUITY UPC 2 Trefoil CEL2 column in 4 minutes with CO 2 and methanol as mobile phase. Column temperature, auto back pressure regulator pressure (ABPR), and modifier solvent were optimized to obtain the best separation efficiency.Under the optimal conditions, the recoveries of both enantiomers were 82.8% to 99.5% with relative standard deviations (RSDs) less than 5.5% at three different concentration levels in two matrices. Good coefficients of determination (R 2 ≥ 0.9976) were achieved over the concentration range of 10 to 500 ng/mL. The limits of detection (LODs) for all enantiomers in the two matrices varied from 1.6 to 2.1 μg/kg, and the limits of quantification (LOQs) did not exceed 7.0 μg/kg. The proposed method was then successfully applied to analyze authentic samples, confirming that it was a green, convenient, and reliable strategy for the analysis of fluazifop-butyl enantiomers in tobacco and soil.

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“…Generally, reversed-phase high-performance liquid chromatography (HPLC), 15 normal-phase HPLC, 16 gas chromatography, 17 capillary electrophoresis, 18 ultraperformance convergence chromatography, 19 cyclodextrin-modified micellar electrokinetic chromatography, 20 supercritical fluid chromatography, 21 etc. Generally, reversed-phase high-performance liquid chromatography (HPLC), 15 normal-phase HPLC, 16 gas chromatography, 17 capillary electrophoresis, 18 ultraperformance convergence chromatography, 19 cyclodextrin-modified micellar electrokinetic chromatography, 20 supercritical fluid chromatography, 21 etc.…”

Section: Introductionmentioning

confidence: 99%

“…Enantiomeric separation of chiral pesticide enantiomers is a key basis for enantiomer-specific behavior research. Generally, reversed-phase high-performance liquid chromatography (HPLC), 15 normal-phase HPLC, 16 gas chromatography, 17 capillary electrophoresis, 18 ultraperformance convergence chromatography, 19 cyclodextrin-modified micellar electrokinetic chromatography, 20 supercritical fluid chromatography, 21 etc. have been developed to separate enantiomers of chiral pesticides.…”

Section: Introductionmentioning

confidence: 99%

Enantiomeric separation of type I and type II pyrethroid insecticides with different chiral stationary phases by reversed‐phase high‐performance liquid chromatography

Zhang

Qian

et al. 2017

Chirality

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The enantiomeric separation of type I (bifenthrin, BF) and type II (lambda-cyhalothrin, LCT) pyrethroid insecticides on Lux Cellulose-1, Lux Cellulose-3, and Chiralpak IC chiral columns was investigated by reversed-phase high-performance liquid chromatography. Methanol/water or acetonitrile/water was used as mobile phase at a flow rate of 0.8 mL/min. The effects of chiral stationary phase, mobile phase composition, column temperature, and thermodynamic parameters on enantiomer separation were carefully studied. Bifenthrin got a partial separation on Lux Cellulose-1 column and baseline separation on Lux Cellulose-3 column, while LCT enantiomers could be completely separated on both Lux Cellulose-1 and Lux Cellulose-3 columns. Chiralpak IC provided no separation ability for both BF and LCT. Retention factor (k) and selectivity factor (α) decreased with the column temperature increasing from 10°C to 40°C for both BF and LCT enantiomers. Thermodynamic parameters including ∆H and ∆S were also calculated, and the maximum R were not always obtained at lowest temperature. Furthermore, the quantitative analysis methods for BF and LCT enantiomers in soil and water were also established. Such results provide a new approach for pyrethroid separation under reversed-phase condition and contribute to environmental risk assessment of pyrethroids at enantiomer level.

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Stereoselective quantification of triticonazole in vegetables by supercritical fluid chromatography

Cited by 50 publications

References 31 publications

The different dissipation behavior of chiral pesticide paclobutrazol in the brine during Chinese cabbage pickling process

The different dissipation behavior of chiral pesticide paclobutrazol in the brine during Chinese cabbage pickling process

Ultra‐performance convergence chromatography with tandem mass spectrometry‐assisted method for rapid enantioseparation and determination of fluazifop‐butyl in tobacco and soil

Enantiomeric separation of type I and type II pyrethroid insecticides with different chiral stationary phases by reversed‐phase high‐performance liquid chromatography

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