Development of a novel, fast, sensitive method for chromium speciation in wastewater based on an organic polymer as solid phase extraction material combined with HPLC–ICP-MS

Jia, Xiaoyu; Gong, Dirong; Xu, Bo; Chi, Qiaoqiao; Zhang, Xian

doi:10.1016/j.talanta.2015.09.047

Cited by 40 publications

(16 citation statements)

References 24 publications

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“…In many cases, solid-phase extraction (SPE) have been extensively used to extract and concentrate trace organic materials from samples [24,25,26]. According to packing materials, the solid phase extraction can be classified into four types: Bonded silica gel particle, high polymer material, adsorptive packing material, and mix-mode and specialized column.…”

Section: The Pre-treatment Methods Of Food Samplementioning

confidence: 99%

Determination of Kanamycin by High Performance Liquid Chromatography

Zhang

Wang

et al. 2019

Molecules

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Kanamycin is an aminoglycoside antibiotic widely used in treating animal diseases caused by Gram-negative and Gram-positive infections. Kanamycin has a relatively narrow therapeutic index, and can accumulate in the human body through the food chain. The abuse of kanamycin can have serious side-effects. Therefore, it was necessary to develop a sensitive and selective analysis method to detect kanamycin residue in food to ensure public health. There are many analytical methods to determine kanamycin concentration, among which high performance liquid chromatography (HPLC) is a common and practical tool. This paper presents a review of the application of HPLC analysis of kanamycin in different sample matrices. The different detectors coupled with HPLC, including Ultraviolet (UV)/Fluorescence, Evaporative Light Scattering Detector (ELSD)/Pulsed Electrochemical Detection (PED), and Mass Spectrometry, are discussed. Meanwhile, the strengths and weaknesses of each method are compared. The pre-treatment methods of food samples, including protein precipitation, liquid-liquid extraction (LLE), and solid-phase extraction (SPE) are also summarized in this paper.

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Section: The Pre-treatment Methods Of Food Samplementioning

confidence: 99%

Determination of Kanamycin by High Performance Liquid Chromatography

Zhang

Wang

et al. 2019

Molecules

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“…It helps provide both high selectivity and sensitivity for analysis by extracting, isolating, and preconcentrating trace amounts of the target analytes from complex sample matrices. Conventional sample preparation methods, such as liquid-liquid extraction (LLE) [1] and solid-phase extraction (SPE) [2] are the most extensively used for extraction of pesticides from various sample matrices. However, these techniques require large amounts of poisonous organic solvents, which are often hazardous.…”

Section: Introductionmentioning

confidence: 99%

β-Cyclodextrin Assisted Liquid–Liquid Microextraction Based on Solidification of the Floating Organic Droplets Method for Determination of Neonicotinoid Residues

et al. 2019

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An efficient and environment-friendly microextraction method, namely, β-cyclodextrin assisted liquid–liquid microextraction, based on solidification of the floating organic droplets method coupled with HPLC is investigated for the sensitive determination of trace neonicotinoid pesticide residues. In this method, β-cyclodextrin is used as a disperser solvent, while 1-octanol is selected as an extraction solvent. β-cyclodextrins was found to decrease interfacial tension and increase the contact area between the organic and water phases with the help of centrifugation. A cloudy solution was rapidly formed and then centrifuged to complete phase separation. Various key parameters influencing extraction efficiency were systematically investigated and optimized; they include salt addition, concentration of β-cyclodextrin, and volume of extraction solvent (1-octanol). Under optimum conditions, good linearity was obtained with coefficient for determination (R2) greater than 0.99. A low limit of detection, high enrichment factor, and good recovery (83 – 132) were achieved. This proves that the proposed method can be applied to determine trace neonicotinoid pesticide residues in natural surface water samples.

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“…The main analytical techniques for Cr(VI) analysis are spectrophotometry, atomic absorption spectrometry, LC with inductively coupled plasma mass spectrometry, ion chromatography with inductively coupled plasma mass spectrometry, and CE . However, in the practical application of spectrophotometry, it is susceptible to be interfered by matrix color, resulting in inaccurate quantification.…”

Section: Introductionmentioning

confidence: 99%

Rapid determination of hexavalent chromium in textiles by a novel ammonium pyrrolidine dithiocarbamate derivatization combined with UHPLC–MS/MS

Zhang

Xian

et al. 2018

J of Separation Science

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Hexavalent chromium is mainly determined by traditional spectrophotometry, atomic absorption spectrometry, and ion chromatography methods. In the present work, a reliable ultra high performance liquid chromatography with tandem mass spectrometry method was firstly developed for the determination of hexavalent chromium in textiles. The sample was extracted by acetic acid/sodium acetate buffer solution and followed by derivatization with ammonium pyrrolidine dithiocarbamate. The resulting derivative product was extracted by ethyl acetate, separated on a C18 column, and detected through electrospray ionization source in the positive mode with multiple reaction monitoring conditions. The derivatization reaction conditions were investigated and optimized. The developed method was validated in terms of the sensitivity, linearity range, matrix effects, recovery, accuracy, intra- and interday precision. Results showed that the calibration curves of pure solvent and matrix were linear over the selected concentration ranges of 0.1-20.0 μg/L. The achieved instrument and method limit of quantification were 0.1 and 40.0 μg/kg, respectively. Recoveries were calculated at three spiked concentrations and the values were between 92.2 and 103% with relative standard deviation values of 2.7-4.9% for intra-day precision and 6.1% for inter-day precision. Successful analysis of hexavalent chromium in practical textiles indicated that there was hexavalent chromium contamination in textiles.

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Development of a novel, fast, sensitive method for chromium speciation in wastewater based on an organic polymer as solid phase extraction material combined with HPLC–ICP-MS

Cited by 40 publications

References 24 publications

Determination of Kanamycin by High Performance Liquid Chromatography

Determination of Kanamycin by High Performance Liquid Chromatography

β-Cyclodextrin Assisted Liquid–Liquid Microextraction Based on Solidification of the Floating Organic Droplets Method for Determination of Neonicotinoid Residues

Rapid determination of hexavalent chromium in textiles by a novel ammonium pyrrolidine dithiocarbamate derivatization combined with UHPLC–MS/MS

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