Novel reagents for quantitative analysis of valiolamine in biological samples by high-performance liquid chromatography with pre-column UV derivatization

Wang, Chengyin; Sun, Yongzhi; Wen, Qunyin; Wang, Guoxiu; Qu, Qishu; Yang, Gongjun; Hu, Xiaoyun

doi:10.1016/j.talanta.2010.03.011

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…In our previous reports, a novel ultraviolet labeling agent 4methoxybenzenesulfonyl uoride (MOBS-F) with facile reaction conditions and simple operation procedures was employed in the detection of primary and secondary amines with satisfactory results. 29,30 Our aim was to develop a quantitative method for the determination of AAC in order to provide reliable data for environmental impact assessment (EIA). a The result was obtained from 5.0 mg mL À1 (A), 20.0 mg mL À1 (B), to 50.0 mg mL (C) of C18A5C.…”

Section: Introductionmentioning

confidence: 99%

Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

et al. 2013

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In this study, a method for the determination of alkylamine carbonate (AAC) nonionic-anion oil displacement agent in oilfield water was developed for the first time, involving pre-column derivatization using a novel labeling agent and HPLC with diode-array detection. The derivatization and chromatographic separation conditions were investigated thoroughly. The analyte was labeled with 4methoxybenzenesulfonyl fluoride at 50 C for 20 min. When the method was applied in the determination of C18A5C (an AAC oil displacement agent containing eighteen alkyl and five amino groups) a linear calibration curve was obtained from 1.0 to 100.0 mg mL À1 with a correlation coefficient of more than 0.999 and a detection limit of 0.05 mg mL À1. In the determination of real oilfield water samples, the recovery range of C18A5C was 91.8% to 96.2%, and the intra-day and inter-day relative standard deviations were 2.9-3.5% and 3.8-4.3%, respectively. The experimental results demonstrate that this method, with its merits of simplicity in pretreatment, rapidity in derivatization, and stability of the derivatives, can be employed in the analysis of C18A5C and has potential application in the detection of other oil displacement surfactants containing amino groups. It is of great significance to develop a fast, easy-to-operate, sensitive and reliable method for environmental impact assessment. Fig. 1 Structure of alkylamine carbonate (AAC) oil displacement agent.

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Section: Introductionmentioning

confidence: 99%

Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

et al. 2013

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A new pre-column derivatization for valienamine and beta-valienamine using o-phthalaldehyde to determine the epimeric purity by HPLC and application of this method to monitor enzymatic catalyzed synthesis of beta-valienamine

Cui

Guan

Zhang-min

et al. 2017

Journal of Asian Natural Products Research

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Valienamine and β-valienamine are representative C N aminocyclitols with significant glycosidase inhibition activity that have been developed as important precursors of drugs for diabetes and lysosomal storage diseases, respectively. The quantitative analysis of these chiral compounds is crucial for asymmetric in vitro biosynthetic processes for converting valienone into valienamine epimers using aminotransferase. Here, we developed an efficient and sensitive method for separation and quantitative analysis of chiral valienamine using reversed-phase high-performance liquid chromatography (HPLC) through o-phthalaldehyde (OPA) pre-column derivatization of the analytes. The epimers were derivatized by OPA in borate buffer (pH 9.0) at room temperature for 30 s, separated on an Eclipse XDB-C18 (5 μm, 4.6 × 150 mm) column, eluted with 22% acetonitrile at 30 °C for 18 min, and detected by a fluorescence detector using 445 nm emission and 340 nm excitation wavelengths. The average resolution of the epimers is 3.86, and the concentration linearity is in the range of 0.02-20 μg/ml. The method proved to be effective, sensitive, and reliable with good intra- and inter-day precision and accuracy, and successfully evaluated the enantiopreference and catalytic capability of the potential aminotransferases on an unnatural prochiral substrate, facilitating the design of an asymmetric biosynthetic route for optically pure valienamine and β-valienamine.

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Determination of Proline, Hydroxyproline, and N–ethylglycine in Urine by Using a New HPLC Labeling Reagent, and Its Application in Detection of Tumor Markers

Guan

Zhang

Zhou

et al. 2014

Journal of Liquid Chromatography & Related Technologies

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Novel reagents for quantitative analysis of valiolamine in biological samples by high-performance liquid chromatography with pre-column UV derivatization

Cited by 6 publications

References 21 publications

Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

Determination of alkylamine carbonate nonionic–anion oil displacement agent in oil-field water using HPLC after derivatization with 4-methoxybenzenesulfonyl fluoride

A new pre-column derivatization for valienamine and beta-valienamine using o-phthalaldehyde to determine the epimeric purity by HPLC and application of this method to monitor enzymatic catalyzed synthesis of beta-valienamine

Determination of Proline, Hydroxyproline, and N–ethylglycine in Urine by Using a New HPLC Labeling Reagent, and Its Application in Detection of Tumor Markers

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