Current Analytical Chemistry - Volume 16, Issue 6, 2020

Background: Potassium permanganate is a green and versatile industrial oxidizing agent. Due to its high oxidizing ability, it has received considerable attention and has been extensively used for many years for the synthesis, identification, and determination of inorganic and organic compounds. Objective: Potassium permanganate is one of the most applicable oxidants, which has been applied in a number of process Read More

Background: Uremia is the outcome of the remaining of nitrogenous waste products that are normally removed by the kidneys. Para-cresol (4-methylphenol) can be regarded as a proteinbound uremic toxin. The p-cresol determination in sera is necessary since it is a marker of cardiovascular risk and overall mortality in hemodialysis patients. Among the reported methods, chromatographic ones especially HPLC Read More

Background: Ginger oil poses various pharmacological properties corresponding to its terpene composition which depends upon the preparation method along with the sample variety. Objective: This work aims to explore the variability in the derived oil associated with the hydrodistillation settings i.e. sample freshness/dryness, size reduction process, and heating duration using chemometric approaches. Methods: The extra Read More

Background: Carbon-based nanomaterials, especially carbon nitride (C3N4) has attracted tremendous interest in biosensor applications. Meanwhile, the mechanism of redox protein sensing and related electrocatalytic reactions can provide a valid basis for understanding the process of biological redox reaction. Objective: The aim of this paper is to construct a new electrochemical enzyme sensor to achieve direct electron transfer Read More

Background: Burning temperature is one of the most important factors affecting the chemical structure of the smoke and the addition of reconstituted tobacco sheet to cut tobacco has been widely used by the tobacco industry to reduce the cost of cigarettes and the health risks of smoking. Methods: A flame retardant film, made from chitosan and ammonium polyphosphate, has been coated on the surface of the r Read More

Background: Reverse İontophoresis (RI) is one of the promising non-invasive technologies. It relies on the transition of low magnitude current through the skin and thus glucose measurement becomes possible as it is extracted from the surface during this porter current flow. Objective: This paper deals with the development and optimization of an RI determination method for glucose. CE dialysis membrane based artificial ski Read More

Background: The synthesis of small organic molecules based Hg2+ ions receptors have gained considerable attention because it is one of the most prevalent toxic metals which is continuously discharged into the environment by different natural and industrial activities. 1,4-Disubstituted 1,2,3-triazoles have been reported as good chemosensors for the detection of various metal ions including Hg2+ ions. Methods: The synthesis Read More

Background: Diabetes Mellitus (DM) is a major public metabolic disease that influences 366 million people in the world in 2011, and this number is predicted to rise to 552 million in 2030. DM is clinically diagnosed by a fasting blood glucose that is equal or greater than 7 mM. Therefore, the development of effective glucose biosensor has attracted extensive attention worldwide. Fluorescence- based strategies have sparked tr Read More

Introduction: Verapamil (Verap) is an antidysrhythmic agent and a calcium channel blocker, indicated for angina, hypertension, supraventricular arrhythmias, and migraine. Objective: Drug monitoring plays a critical role in patient survival. In order to prevent the onset of drug toxicity, trace levels of this drug should be determined. Methods: For this reason, solvent bar microextraction technique coupled with high-performanc Read More

Background: Drug Enforcement Administration confirmed that many manufacturers began adding tetramisole or its individual isomers to cocaine as an adulterant, and believed that tetramisole may augment cocaine’s effects. In recent times, there is an increasing trend in the usage of tetramisole and its individual enantiomer in race sports especially in horse and camel races. So it’s is very much required to confirm the Read More

Background: Vanillin is a key constituent of natural vanilla. Usage of natural vanilla is affected due to its high price and limited supply, which leads to the use of artificial vanilla flavoring substances. Coumarin is a commonly encountered adulterant in beverage, food, and cosmetics as a flavoring and fragrance enhancer. However, coumarin has been banned for use as a food additive due to its toxic effects. To comply with the qual Read More

Background: Bougainvillea x buttiana has long been used as a Mexican conventional medicinal drug to cure different sicknesses. Objective: In this work, the consequences of ethanol combination and temperature extraction for phenolic compound recovery with the biological activity in Bougainvillea x buttiana extracts were investigated. Materials and Methods: The phenolic recovery from Bougainvillea x buttiana was de Read More

Objective: Molecularly Imprinted Polymer (MIP)-modified potentiometric sensors for histamine (HIS) (as denoted as HIS sensor) have been developed. Methods: The MIPs comprise HIS, Methacrylic Acid (MAA) and ethylene glycol dimethacrylate as the template molecule, functional monomer and cross-linker, respectively. To examine the specificity of the MIP to HIS, the MIP particles were prepared with varying ratios Read More

Background: A simple, fast and economic analytical method for the determination of ethanol is important for clinical, biological, forensic and physico-legal purposes. Methods: Ni2+-NTA resin was used as an immobilization matrix for the simple one-step purification/ immobilization of his6-tagged ADH. Different alcohols with a concentration range of 0.5-50% V/V, namely methanol, ethanol and propanol were measured usin Read More

Background: Molecular imprinting is a technology used to produce artificial receptors that simulate the molecular recognition in the nature and prepare the polymer network structure in the presence of template molecule. Molecularly imprinted visual sensor combines the advantages of specific recognition via molecular imprinting and fast response speed via visualization. The aims of this paper are to prepare a portable Read More