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    2019
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Investigation on the Influence of Microstructure Based on Hydrogen Bonding on Surface Tension by Raman Spectroscopy

Nannan Wu,  Shunli Ouyang,  Junjie Cui,  Shiliang Liu,  Mingzhe Zhang,  Qingcheng Hu,  Baokun Huang, 
  • First Published: 29 December 2019
Research Article
Open Access

Structural Analysis of Humic Acid in Soil at Different Corn Straw Returning Modes through Fluorescence Spectroscopy and Infrared Spectroscopy

JinFeng Gao,  Sen Dou,  ZhiGuo Wang, 
  • First Published: 29 December 2019
Research Article
Open Access

An Exposure Assessment of Arsenic and Other Trace Elements in Ha Nam Province, Northern Vietnam

Manh Ha Nguyen,  Quoc Anh Hoang,  Lan Anh Nguyen,  Thi Thao Ta,  Tien Duc Pham,  Minh Binh Tu,  Dinh Binh Chu, 
  • First Published: 21 December 2019
Research Article
Open Access

A Simple Colorimetric Method for the Determination of Raloxifene Hydrochloride in Pharmaceuticals Using Modified Romini’s Reagent

Kovvuru Praneeth Kumar Reddy,  Kale Muni Sai Prathap,  Hemraj Sharma,  Kondareddy Vinod Kumar, 
  • First Published: 18 December 2019
Research Article
Open Access

Simultaneous Determination of Schisandrin and Promethazine with Its Metabolite in Rat Plasma by HPLC-MS/MS and Its Application to a Pharmacokinetic Study

Sijia Gao,  Xuelin Zhou,  Liwei Lang,  Honghong Liu,  Jianyu Li,  Haotian Li,  Shizhang Wei,  Dan Wang,  Zhuo Xu,  Huadan Cai,  Yanling Zhao,  Wenjun Zou, 
  • First Published: 09 December 2019
Research Article
Open Access

Simultaneous Quantification of Brigatinib and Brigatinib-Analog in Rat Plasma and Brain Homogenate by LC-MS/MS: Application to Comparative Pharmacokinetic and Brain Distribution Studies

Bo Li,  Min Lu,  Lei Jin,  Maoen Zheng,  Peilu Sun,  Shanshan Lei,  Shan Xiong,  Suhong Chen, 
  • First Published: 05 December 2019
Research Article
Open Access

Indoxyl Acetate as a Substrate for Analysis of Lipase Activity

Tomas Valek,  Adam Kostelnik,  Pavla Valkova,  Miroslav Pohanka, 
  • First Published: 01 December 2019
Research Article
Open Access

Chemical and Pharmacological Evaluation of Hulls of Prunus dulcis Nuts

Muhammad Nasimullah Qureshi,  Sodik Numonov,  Haji Akber Aisa, 
  • First Published: 22 November 2019
Research Article
Open Access

Development and Validation of an HPLC Method for Simultaneous Assay of MCI and MI in Shampoos Containing Plant Extracts

Le Thi Huong Hoa,  Vo Tran Ngoc Hung,  Do Thu Trang,  Thai Nguyen Hung Thu,  Dinh Chi Le, 
  • First Published: 20 November 2019
Research Article
Open Access

Identification of the Constituents of Percutaneous Absorption from Duhaldea nervosa Based on UHPLC-Q-Exactive Orbitrap MS and Microdialysis Technique

Lianghong Liu,  Lian Zhu,  Kaiyan Gong,  Xinjun Zhi,  Ying Guan,  Wei Cai, 
  • First Published: 11 November 2019
Research Article
Open Access

Oxidase-Like Catalytic Performance of Nano-MnO2 and Its Potential Application for Metal Ions Detection in Water

Kai Sun,  Qingzhu Liu,  Rui Zhu,  Qi Liu,  Shunyao Li,  Youbin Si,  Qingguo Huang, 
  • First Published: 03 November 2019
Research Article
Open Access

Rapid and Sensitive Determination of Methylxanthines in Commercial Brands of Tea Using Ultra-High-Performance Liquid Chromatography-Mass Spectrometry

Ahmad Aqel,  Ahmed Almulla,  Asma’a Al-Rifai,  Saikh M. Wabaidur,  Zeid A. ALOthman,  Ahmed-Yacine Badjah-Hadj-Ahmed, 
  • First Published: 03 November 2019
Research Article
Open Access

Analysis of the Dissipation Behavior of Defoliants in Cotton Fiber during Field and Scouring Process Using Liquid and Gas Chromatography

Mingbo Ma,  Pirah Ayaz,  Wanhui Jin,  Munir Hussain,  Wenlong Zhou, 
  • First Published: 30 October 2019
Research Article
Open Access

Investigation of Acid-Base Indicator Property of Plumbagin from Plumbago zeylanica Linn

Emmanuel B. A. Adusei,  Reimmel K. Adosraku,  James Oppong-Kyekyeku,  Cedric D. K. Amengor, 
  • First Published: 18 August 2019
Research Article
Open Access

Application of Factorial and Doehlert Designs for the Optimization of the Simultaneous Separation and Determination of Antimigraine Drugs in Pharmaceutical Formulations by RP-HPLC-UV

Sami Jebali,  Chaouki Belgacem,  Mohamed Radhouen Louhaichi,  Senda Bahri,  Latifa Latrous El Atarche, 
  • First Published: 15 August 2019
Research Article
Open Access

Analysis of the Possibility and Conditions of Application of Methylene Blue to Determine the Activity of Radicals in Model System with Preaccelerated Cross-Linking of Polyester Resins

Karol Hęclik,  Jerzy Duliban,  Barbara Dębska,  Jacek Lubczak, 
  • First Published: 01 August 2019
Research Article
Open Access

A Comparison of Sparse Partial Least Squares and Elastic Net in Wavelength Selection on NIR Spectroscopy Data

Guang-Hui Fu,  Min-Jie Zong,  Feng-Hua Wang,  Lun-Zhao Yi, 
  • First Published: 01 August 2019
Research Article
Open Access

UPLC-MS/MS Determination of Twelve Ginsenosides in Shenfu Tang and Dushen Tang

Dawai Yang,  Xiaofang Yang,  Han Yan,  Bin Fan,  Jingang Dai,  Jun Song,  Yan Lei,  Na Guo, 
  • First Published: 11 July 2019
Research Article
Open Access

The Determination of Parkinson’s Drugs in Human Urine by Applying Chemometric Methods

Guzide Pekcan Ertokus, 
  • First Published: 09 July 2019
Research Article
Open Access

Chemical Vapour Deposition of MWCNT on Silica Coated Fe3O4 and Use of Response Surface Methodology for Optimizing the Extraction of Organophosphorus Pesticides from Water

Veronica W. O. Wanjeri,  Sefater Gbashi,  Jane C. Ngila,  Patrick Njobeh,  Messai A. Mamo,  Patrick G. Ndungu, 
  • First Published: 03 July 2019
Research Article
Open Access

Simultaneous Determination of Seven Active Components in Rat Plasma by UHPLC-MS/MS and Application to a Quantitative Study after Oral Administration of Huang-Lian Jie-Du Decoction in High Fat-Induced Atherosclerosis Rats

Li Jiang,  Yanling Xiong,  Lanbin Yu,  Yu Chen,  Qiyun Zhang,  Xue Ding,  Xiaojun Yan,  Peng Nie,  Guoliang Xu, 
  • First Published: 01 July 2019
Research Article
Open Access

Determination of Metals in Natural Waters by Inductively Coupled Plasma Optical Emission Spectroscopy after Preconcentration on Silica Sequentially Coated with Layers of Polyhexamethylene Guanidinium and Sulphonated Nitrosonaphthols

Svetlana L. Didukh-Shadrina,  Vladimir N. Losev,  Alexandr Samoilo,  Anatoliy К. Trofimchuk,  Pavel N. Nesterenko, 
  • First Published: 01 July 2019
Research Article
Open Access

Highly Specific Chemiluminescence Immunoassay for the Determination of Chloramphenicol in Cosmetics

Qiyan Li,  Riran Zhu,  Jun Li,  Xiaobing Wang,  Lihua Xu,  Yanshen Li,  Peng Li, 
  • First Published: 20 June 2019
Research Article
Open Access

Arsenic Species Analysis at Trace Level by High Performance Liquid Chromatography with Inductively Coupled Plasma Mass Spectrometry

Hongfang Hou,  Wanjing Cui,  Qing Xu,  Zhanhui Tao,  Yafei Guo,  Tianlong Deng, 
  • First Published: 04 June 2019
Research Article
Open Access

Assessment of Heavy and Toxic Metals in the Blood and Hair of Saudi Arabia Smokers Using Modern Analytical Techniques

Majed Alrobaian,  Hassan Arida, 
  • First Published: 04 June 2019
Research Article
Open Access

A Novel Metal-Organic Framework Composite, MIL-101(Cr)@MIP, as an Efficient Sorbent in Solid-Phase Extraction Coupling with HPLC for Tribenuron-Methyl Determination

Xinyuan Zheng,  Junping Wang, 
  • First Published: 02 June 2019
Research Article
Open Access

Evaluation of Selected Essential Elements in Khalas Dates from Date Palm Determined by Inductively Coupled Plasma-Mass Spectrometry

Eid I. Brima, 
  • First Published: 02 June 2019
Research Article
Open Access

Accurate Determination of Boron Content in Halite by ICP-OES and ICP-MS

Zhang-kuang Peng,  Zhi-na Liu, 
  • First Published: 29 May 2019
Research Article
Open Access

An Analytical Survey of Trace Heavy Elements in Insecticides

Maha Abdallah Alnuwaiser, 
  • First Published: 29 May 2019
Research Article
Open Access

The Synthesis Followed by Spectral and Calorimetric Evaluation of Stability of Human Milk Fat Substitutes Obtained from Thistle Milk and Lard

Joanna Bryś,  lnês Filipa Vaz Flores,  Agata Górska,  Ewa Ostrowska–Ligęza,  Andrzej Bryś,  Tomasz Niemiec,  Piotr Koczoń, 
  • First Published: 02 May 2019
Research Article
Open Access

Colorimetric Detection of Sulfide Anions via Redox-Modulated Surface Chemistry and Morphology of Au-Hg Nanorods

Xiaotian Zhu,  Chang Liu,  Jie Liu, 
  • First Published: 02 May 2019
Research Article
Open Access

Stability of Propofol (2,6-Diisopropylphenol) in Thermal Desorption Tubes during Air Transport

Felix Maurer,  Martin Geiger,  Thomas Volk,  Daniel I. Sessler,  Sascha Kreuer,  Tobias Hüppe, 
  • First Published: 02 May 2019
Research Article
Open Access

Potentiometric Determination of Chlorate Impurities in Hypochlorite Solutions

Dmitry V. Girenko,  Al’ona A. Gyrenko,  Nikolai V. Nikolenko, 
  • First Published: 02 May 2019
Research Article
Open Access

Electrochemical Characterization of Iron (III) Doped Zeolite-Graphite Composite Modified Glassy Carbon Electrode and Its Application for AdsASSWV Determination of Uric Acid in Human Urine

Meareg Amare, 
  • First Published: 02 May 2019
Research Article
Open Access

Determination of Pyrethroids in Paris polyphylla Sample by High-Performance Liquid Chromatography Using Ultrasound-Assisted Magnetic Solid-Phase Extraction

Wei Zhang,  Xin Zhao,  Hengling Meng,  Jin Yang,  Xiang Wei,  Yong Min, 
  • First Published: 24 April 2019
Research Article
Open Access

Optimization of Resolving Power, Fragmentation, and Mass Calibration in an Orbitrap Spectrometer for Analysis of 24 Pesticide Metabolites in Urine

Pablo Dualde,  Clara Coscollà,  Agustin Pastor,  Vicent Yusà, 
  • First Published: 17 April 2019
Research Article
Open Access

A New Quinone Based Fluorescent Probe for High Sensitive and Selective Detection of Biothiols and Its Application in Living Cell Imaging

Yanju Liu,  Manman Li,  Keith Man-Chung Wong,  Yan Tong,  Huaixia Yang,  Jinming Kong, 
  • First Published: 09 April 2019
Research Article
Open Access

Preparation of Monodisperse Enrofloxacin Molecularly Imprinted Polymer Microspheres and Their Recognition Characteristics

Xiaoxiao Wang,  Yanqiang Zhou,  Yuling Niu,  Shanwen Zhao,  Bolin Gong, 
  • First Published: 01 April 2019
Research Article
Open Access

Gradual Optimization of Headspace Solid-Phase Microextraction Conditions of Volatiles in Pepper Chicken Soup Combined with Gas Chromatography-Mass Spectrometry and Principal Component Analysis

Qiuyue Geng,  Ping Zhan,  Honglei Tian,  Peng Wang,  Haitao Chen, 
  • First Published: 01 April 2019
Research Article
Open Access

Using UPLC-QTOF-MS Method to Analyse the Spot Constituents of the Thin Layer Chromatograms for Chuzhou Stemona sessilifolia (Miq.) Miq.

Ya-Zhong Zhang,  Ye Tao,  Ai-Zong Shen, 
  • First Published: 01 April 2019
Research Article
Open Access

In-Situ Analysis of Essential Fragrant Oils Using a Portable Mass Spectrometer

Fred P. M. Jjunju,  Stamatios Giannoukos,  Alan Marshall,  Stephen Taylor, 
  • First Published: 01 April 2019
Research Article
Open Access

Ultrasensitive Optical Chemosensor for Cu(II) Detection

Sayed M. Saleh,  Reham Ali,  Fahad Alminderej,  Ibrahim A. I. Ali, 
  • First Published: 26 March 2019
Research Article
Open Access

Design and Optimization of Colorimetric Paper-Based Analytical Device for Rapid Detection of Allopurinol in Herbal Medicine

Rimadani Pratiwi,  Rieda Nurwulan Septyani,  Rossi Febriany,  Febrina Amelia Saputri,  Rina Fajri Nuwarda, 
  • First Published: 19 March 2019
Research Article
Open Access

Optimization of Flavonoid Extraction in Dendrobium officinale Leaves and Their Inhibitory Effects on Tyrosinase Activity

Haixia Lu,  Ke Yang,  Lianghui Zhan,  Tingting Lu,  Xue Chen,  Xiamiao Cai,  Cong Zhou,  He Li,  Liuqing Qian,  Guiyuan Lv,  Suhong Chen, 
  • First Published: 13 March 2019
Research Article
Open Access

Exploring Chemical Basis of Toxicity Reduction for Processed Roots of Stellera chamaejasme L. Using Ultraperformance Liquid Chromatography–Triple Quadrupole Tandem Mass Spectrometry

Wei Yang,  Xiaoli Ma,  Ludi Wang,  Mengmeng Wei,  Shuyao Wang,  Siyang Wu,  Chen Kang,  Yingfei Li, 
  • First Published: 06 March 2019
Research Article
Open Access

A Simple Ultraperformance Liquid Chromatography-Tandem Mass Spectrometry Method for Measurement of Cortisol Level in Human Saliva

Syed N. Alvi,  Muhammad M. Hammami, 
  • First Published: 03 March 2019
Erratum
Open Access

Erratum to “Development of a New Sequential Extraction Procedure of Nickel Species on Workplace Airborne Particulate Matter: Assessing the Occupational Exposure to Carcinogenic Metal Species”

Simona Catalani,  Jacopo Fostinelli,  Maria Enrica Gilberti,  Francesca Orlandi,  Riccardo Magarini,  Matteo Paganelli,  Egidio Madeo,  Giuseppe De Palma, 
  • First Published: 03 March 2019

Research Article
Open Access

An LC-MS/MS Method for Simultaneous Determination of the Toxic and Active Components of Cortex Periplocae in Rat Plasma and Application to a Pharmacokinetic Study

Zhen Li,  Yang Li,  Jin Li,  Rui Liu,  Jia Hao,  Jun He,  Yan-xu Chang, 
  • First Published: 13 February 2019
Research Article
Open Access

Green Analytical Methods for the Separation of Seven Antihistamines: Application in Separation of Azelastine and Related Impurities in Nasal Solution

Lucas Maciel da Costa,  Heitor Oliveira de Almeida Leite,  Nájla Mohamad Kassab,  Anil Kumar Singh, 
  • First Published: 11 February 2019
Research Article
Open Access

Fast and Simple LC-MS/MS Method for Rifampicin Quantification in Human Plasma

Žane Temova Rakuša,  Robert Roškar,  Anita Klančar Andrejc,  Tina Trdan Lušin,  Nataša Faganeli,  Iztok Grabnar,  Aleš Mrhar,  Albin Kristl,  Jurij Trontelj, 
  • First Published: 03 February 2019
Research Article
Open Access

Disposable Nonenzymatic Uric Acid and Creatinine Sensors Using μPAD Coupled with Screen-Printed Reduced Graphene Oxide-Gold Nanocomposites

Kamolwich Income,  Nalin Ratnarathorn,  Napassawan Khamchaiyo,  Chanut Srisuvo,  Leela Ruckthong,  Wijitar Dungchai, 
  • First Published: 03 February 2019
Research Article
Open Access

Fluorescent Sensors Based on Organic Polymer-Capped Gold Nanoparticles for the Detection of Cr(VI) in Water

Na Wang,  Liangchen Wang,  Hong Yang,  Tingting Xiong,  Shangping Xiao,  Jiawen Zhao,  Weiping Du, 
  • First Published: 03 February 2019
Research Article
Open Access

Simultaneous Quantification of Methotrexate and Its Metabolite 7-Hydroxy-Methotrexate in Human Plasma for Therapeutic Drug Monitoring

Xinxin Ren,  Zhipeng Wang,  Yunlei Yun,  Guangyi Meng,  Xialan Zhang,  Huamin Ding,  Ying Xu,  Hansheng Bai,  Jing Liu,  Xia Li,  Shouhong Gao,  Lifeng Huang,  Wansheng Chen, 
  • First Published: 03 February 2019
Research Article
Open Access

Simultaneous Determination of Four Aldehydes in Gas Phase of Mainstream Smoke by Headspace Gas Chromatography-Mass Spectrometry

Xiaotao Zhang,  Ruoning Wang,  Li Zhang,  Jianke Wei,  Yibin Ruan,  Weiwei Wang,  Houwei Ji,  Jian Liu, 
  • First Published: 03 February 2019
Erratum
Open Access

Erratum to “Rapid, Validated UPLC-MS/MS Method for Determination of Glibenclamide in Rat Plasma”

Mohd Aftab Alam,  Fahad Ibrahim Al-Jenoobi,  Abdullah Mohammed Al-Mohizea, 
  • First Published: 03 February 2019

Research Article
Open Access

Chromatographic Fingerprint and Quantitative Analysis of Commercial Pheretima aspergillum (Guang Dilong) and Its Adulterants by UPLC-DAD

Jie Sun,  Fang Tian,  Ying Zhang,  Menghua Wu,  Runqian Mao,  Zhiyong Le,  Dongjin Xu,  Hui Cao,  Zhiguo Ma, 
  • First Published: 09 January 2019
Research Article
Open Access

Preparative Separation of Three Monoterpenes from Perilla frutescens var. crispa Using Centrifugal Partition Chromatography

Bomi Nam,  Sunil Babu Paudel,  Jin-Baek Kim,  Chang Hyun Jin,  Dongho Lee,  Joo-Won Nam,  Ah-Reum Han, 
  • First Published: 09 January 2019
Research Article
Open Access

Forensic Discrimination Potential of Blue, Black, Green, and Red Colored Fountain Pen Inks Commercially Used in Pakistan, by UV/Visible Spectroscopy, Thin Layer Chromatography, and Fourier Transform Infrared Spectroscopy

Mehwish Sharif,  Madeeha Batool,  Sohail Chand,  Zahoor Hussain Farooqi,  Syed Azhar Ali Shah Tirmazi,  Makshoof Athar, 
  • First Published: 06 January 2019
Research Article
Open Access

Determination of Atenolol and Trimetazidine in Pharmaceutical Tablets and Human Urine Using a High Performance Liquid Chromatography-Photo Diode Array Detection Method

Walaa El-Alfy,  Omnia A. Ismaiel,  Magda Y. El-Mammli,  Abdalla Shalaby, 
  • First Published: 03 January 2019
Research Article
Open Access

Thermodynamic Insights into the Separation of Carotenoids in Reversed-Phase Liquid Chromatography

Nicola Marchetti,  Pier Paolo Giovannini,  Martina Catani,  Luisa Pasti,  Alberto Cavazzini, 
  • First Published: 03 January 2019
Research Article
Open Access

Application of the Principles of Green Chemistry for the Development of a New and Sensitive Method for Analysis of Ertapenem Sodium by Capillary Electrophoresis

Tahisa Marcela Pedroso,  Ann Van Schepdael,  Hérida Regina Nunes Salgado, 
  • First Published: 02 January 2019
Research Article
Open Access

Application of Multivariate Statistical Analysis to Simultaneous Spectrophotometric Enzymatic Determination of Glucose and Cholesterol in Serum Samples

Jessica Torres-Gamez,  Jose A. Rodriguez,  M. Elena Paez-Hernandez,  Carlos A. Galan-Vidal, 
  • First Published: 02 January 2019
Research Article
Open Access

How to Efficiently Produce Ultrapure Acids

Damiano Monticelli,  Alessio Castelletti,  Davide Civati,  Sandro Recchia,  Carlo Dossi, 
  • First Published: 01 January 2019
Editorial
Open Access

Extraction/Preconcentration Procedures for Determination of Metal and Organometallic Species in Environmental, Biological, and Food Samples

Marcela Zanetti Corazza,  Vanessa Egea dos Anjos,  Seyyed E. Moradi, 
  • First Published: 01 January 2019
Research Article
Open Access

An Analytical Evaluation of the Synergistic Effect on Biodiesel Oxidation Stability Promoted by Binary and Ternary Blends Containing Multifunctional Additives

Silvia S. Yahagi,  Ana C. Roveda,  Adrielli T. Sobral,  Ivan P. Oliveira,  Anderson R. L. Caires,  Roberto S. Gomes,  Magno A. G. Trindade, 
  • First Published: 01 January 2019