Chinese Journal of Analytical Chemistry 
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This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.Prussian Blue Analogue of Copper-Cobalt Decorated with Multi-Walled Carbon Nanotubes Based Electrochemical Sensor for Sensitive Determination of Nitrite in Food Samples
Publication date: June 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 6Author(s): Hong-Ying LIU, Jia-Jun WEN, Zhi-Heng HUANG, Huan MA, Han-Xiao XU, Yu-Bin QIU, Wei-Jie ZHAO, Chun-Chuan GUAbstractCu-Co Prussian Blue analogue (CuII3[CoIII(CN)6]2)/multi-walled carbon nanotubes (Cu-Co PBA/MWCNTs) composite was synthesized for fabrication of an electrochemical sensor for detection of nitrite. The morphology and composition of the fabricated nanomaterial were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and scanning electron microscopy (SEM). Cyclic voltammetry (CV)...
Source: Chinese Journal of Analytical Chemistry - June 12, 2019 Category: Chemistry Source Type: research
Expansion Microscopy Imaging Technique and Its Application
Publication date: May 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 5Author(s): Kai CHEN, Ying-Chun ZHANG, Guan-Fang ZHAOAbstractDue to the limitations of optical diffraction, traditional optical microscopes have insufficient resolution to observe subcellular microstructures. Super-resolution microscopy, awarded the Nobel Prize in Chemistry in 2014, has been used extensively in single-molecule imaging of microstructures. As a new super-resolution microscopy, expansion microscopy (ExM) has the advantages of short imaging time and can mark dense biological macromolecules. This paper describes the imag...
Source: Chinese Journal of Analytical Chemistry - May 11, 2019 Category: Chemistry Source Type: research
Microchannel with Stacked Microbeads for Separation of Plasma from Whole Blood
Publication date: May 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 5Author(s): Meng-Di CHEN, Yan-Ting YANG, Zhi-Yang DENG, Hong-Yan XU, Ji-Nan DENG, Zhong YANG, Ning HU, Jun YANGAbstractA microfluidic device integrated with a microchannel stacked by two kinds of microbeads with different sizes and a capillary microchannel array was designed and fabricated. When whole blood sample flowed through these channels, blood cells were filtered and adsorbed by the stacked microbeads, and plasma could be separated rapidly. The microbeads were introduced into the channel by negative pressure and thus stacked ...
Source: Chinese Journal of Analytical Chemistry - May 11, 2019 Category: Chemistry Source Type: research
Facile Synthesis of Biocompatible Fe3O4-Based Nanoparticles for pH-Responsive Dual-Model Magnetic Resonance Imaging-Guided Tumour Eradication by Photothermal Therapy
Publication date: May 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 5Author(s): Jian-Hua LIU, Lei WANG, Tian-Qi ZHANG, Jian-Qiu WANG, Xue GONG, Feng-Zhi CUI, Jian-Jun ZHENG, Bo LI, Zhan SHIAbstractThe accurate and early diagnosis is very important for the successful treatment of tumours. However, a single mode of magnetic resonance imaging (MRI) is difficult to satisfy the high requirements of accurate diagnosis owing to the inherent defects. Herein, we constructed a kind of poly(acrylic) acid (PAA) modified Fe3O4@MnO2 nanoparticles (Fe3O4@MnO2@PAA NPs) for the pH-responsive T1/T2 dual-model MRI gui...
Source: Chinese Journal of Analytical Chemistry - May 11, 2019 Category: Chemistry Source Type: research
Research and Application of Mass Spectrometry with Low Energy Electron Impact Ionization Source
Publication date: May 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 5Author(s): Guang-Cai LIU, Xiao-Yun GONG, You JIANG, Yi-Qing PIAO, Xiang FANG, Ze-Jian HUANG, Di TIANAbstractThe changes of concentrations of O2 and CO2 in tail gas of fermentation industry reflect some important physiological and metabolic parameters in the fermentation process. Monitoring of the tail gas of fermentation has important significance for guiding the fermentation process. However, traditional monitoring methods are time-consuming with low precision and poor versatility, and are not suitable to monitor fermentation tail...
Source: Chinese Journal of Analytical Chemistry - May 11, 2019 Category: Chemistry Source Type: research
Determination of 10 Kinds of Caine-Type Prohibited Ingredients in Cosmetics by Ultra-Performance Liquid Chromatography-Differential Mobility Spectrometry-Mass Spectrometry
Publication date: May 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 5Author(s): Xian-Hui LIAN, Chun WANG, Xian-Shuang MENG, Hua BAI, Xiao-Jie SUN, Hong-Yu XUE, Qiang MAAbstractAn analytical method for determination of 10 kinds of caine-type prohibited ingredients in cosmetics was developed. The analytes were enriched through supramolecular solvent-based dispersive liquid-liquid microextraction, followed by instrumental analysis with ultra performance liquid chromatography coupled with differential mobility spectrometry-mass spectrometry. The supramolecular solvent was prepared with dodecanol as extr...
Source: Chinese Journal of Analytical Chemistry - May 11, 2019 Category: Chemistry Source Type: research
Development of A Fiber-Packed In-Tube Extraction Device and Its Application in BTEX Analysis
Publication date: May 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 5Author(s): Bo ZHU, Xiao-Yang GUO, Xi-Yue WANG, Li-Li LIAN, Hao ZHANG, Wen-Xiu GAO, Yuan-Yuan TIAN, Xiao-Yu ZHANG, Da-Wei LOUAbstractA fiber-packed in-tube extraction device was developed with heat-resistant fibers coated with molecularly imprinted polymer as adsorbent for concentration detection of volatile organic compounds (VOCs). The coated fibers were longitudinally packed into a filling chamber. The inner diameter of the filling chamber was 3 mm and its length was 2.5 cm. The filling chamber was connected to gas chromatography...
Source: Chinese Journal of Analytical Chemistry - May 11, 2019 Category: Chemistry Source Type: research
Progress and Applications of Multivariate Calibration Model Transfer Methods
Publication date: April 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 4Author(s): Yun-Ying SHI, Jing-Yan LI, Xiao-Li CHUAbstractThe combination of multivariate calibration and spectroscopic analysis technology can achieve the rapid analysis of substance. However, when the external environmental conditions such as instruments or accessories are replaced or temperature changed, the current master calibration may be “invalid”. Recalibration usually takes a lot of time and financial resources. The development of calibration transfer techniques can solve this problem well, and the adaptability and ro...
Source: Chinese Journal of Analytical Chemistry - April 11, 2019 Category: Chemistry Source Type: research
Screening of Oligonucleotide Aptamers and Application in Detection of Pesticide and Veterinary Drug Residues
Publication date: April 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 4Author(s): Xue-Mei ZOU, Jia-Wei ZHOU, Shang-Hong SONG, Guan-Hua CHENAbstractAptamers are a type of single stranded short deoxyribonucleic acid or ribonucleic acid sequences screened from a random oligonucleotide library, which have high affinity and specific recognition for specific target molecules. Since the advent of screening process called the systematic evolution of ligands by exponential enrichment (SELEX), there have been various SELEX-based improved screening processes and capillary electrophoresis-based SELEX or non-SEL...
Source: Chinese Journal of Analytical Chemistry - April 11, 2019 Category: Chemistry Source Type: research
Microfluidic Array Liquid Chromatography: A Proof of Principle Study
In this study, a microfluidic chip-based array liquid chromatographic platform enabling multicolumn separation and detection was developed. The platform is based on the combination of glass, poly(methyl methacrylate) (PMMA) and polydimethylsiloxane (PDMS) chips and up to 8 packed chromatographic channels were manufactured on such a microfluidic device. Pressurization experiments showed that the array chip could be reliably used under pressure-driven liquid chromatographic mode. A nanoflow of 300 nL min–1 per column was realized through multi-stage flow splitting. We investigated the feasibility and effectiveness of 8 col...
Source: Chinese Journal of Analytical Chemistry - April 11, 2019 Category: Chemistry Source Type: research
Orange Luminescent Carbon Dots as Fluorescent Probe for Detection of Nitrite
Publication date: April 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 4Author(s): Jing JIA, Wen-Jing LU, Lin LI, Yuan JIAO, Yi-Fang GAO, Shao-Min SHUANGAbstractOrange luminescent nitrogen doped carbon dots (N-CDs) were prepared via one-step hydrothermal treatment with p-phenylenediamine and citric acid as precursors. The morphology and optical properties of the N-CDs were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectra (FTIR), ultraviolet-visible absorption spectroscopy (UV-vis) and fluorescence (FL) spectroscopy. The synthesized N-CDs had an extreme small...
Source: Chinese Journal of Analytical Chemistry - April 11, 2019 Category: Chemistry Source Type: research
Analysis of Near-Infrared Spectra of Coal Using Deep Synergy Adaptive Moving Window Partial Least Square Method Based on Genetic Algorithm
Publication date: April 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 4Author(s): Sheng-Hao WANG, Yong ZHAO, Rong HU, Yu-Yan ZHANG, Xin-Hua HANAbstractSpectral analysis is one of the available methods for rapid measurement of the common important properties of coal. Many studies on the spectral analysis of coal have been reported; however, it is still unknown whether the optimal coal quantitative calibration mode can be obtained from full spectrum or by selecting wavelength variables. In addition, the data preprocessing methods and their parameters are always determined by trial and error or experie...
Source: Chinese Journal of Analytical Chemistry - April 11, 2019 Category: Chemistry Source Type: research
An Ultrasensitive Real-time Immuno-polymerase Chain Reaction Assay for Detection of Tetrabromobisphenol A in PM2.5 Particles Using Functionalized Nanoprobes
Publication date: April 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 4Author(s): Zhen MA, Hui-Sheng ZHUANG, Guang-Xin YANGAbstractTetrabromobisphenol A (TBBPA), a type of brominated flame retardant, is widely distributed in the environment. In this work, different TBBPA antigens and polyclonal anti-TBBPA antibody (pAb-TBBPA) were prepared, and on the basis of this, an ultrasensitive real-time immuno-polymerase chain reaction for TBBPA detection using functionalized nanoprobes (FNPs-IPCR) was developed. Gold nanoparticles modified with thiol-capped DNA and pAb-TBBPA were prepared as antibody-DNA con...
Source: Chinese Journal of Analytical Chemistry - April 11, 2019 Category: Chemistry Source Type: research
Applications of High-Resolution Mass Spectrometry in Determination of Chlorinated Paraffins
Publication date: March 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 3Author(s): Xiao-Mei HUANG, Yang WU, Jun-Tao CUI, Fu-Hua WANG, Xu WANG, Ya-Fei LI, Wei-Yun WUAbstractChlorinated paraffins (CPs) are a new class of persistent organic pollutants and have aroused great concern of many environmental scientists, due to their ubiquity in various environmental media and biotas. Given their relative low levels in environmental samples, CPs need to be enriched and cleaned up before instrumental analysis. CPs consist of thousands of congeners and isomers, thus posing grand challenges to eliminate the mass...
Source: Chinese Journal of Analytical Chemistry - March 9, 2019 Category: Chemistry Source Type: research
Research Advances in Ambient Ionization and Miniature Mass Spectrometry
Publication date: March 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 3Author(s): Xiang-Yu GUO, Xue-Mei HUANG, Jun-Feng ZHAI, Hua BAI, Xiao-Xu LI, Xiao-Xiao MA, Qiang MAAbstractThe development and applications of ambient ionization and miniature mass spectrometry are current research focus in chemical measurement. The analytical technology based on the combination of ambient ionization and miniature mass spectrometry can bypass chromatographic separation and eliminate or simplify sample pretreatment process. The protocol can reverse the labor-intensive and time-consuming drawbacks of traditional ana...
Source: Chinese Journal of Analytical Chemistry - March 9, 2019 Category: Chemistry Source Type: research
