Journal of Analytical Science and Technology
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Bioanalysis of alpelisib using liquid chromatography–tandem mass spectrometry and application to pharmacokinetic study
Journal of Analytical Science and Technology - Tập 13 - Trang 1-13 - 2022
Alpelisib is the first alpha-specific phosphatidylinositol-3-kinase (PI3K) inhibitor indicated for the treatment of hormone receptor-positive, human epidermal growth factor receptor 2-negative, PI3K catalytic subunit alpha-mutated, advanced, or metastatic breast cancer. Substantial attempts have been made to extend its clinical use to other types of cancer. Analytical methods proven to accurately ......
Environmentally preferable solvents promoted resolution of multi-component mixtures of amino acids: an approach to perform green chromatography
Journal of Analytical Science and Technology - Tập 4 - Trang 1-6 - 2013
Amino acids are the building blocks of proteins and found in structural tissues of the human body. Their deficiency may cause a number of diseases. Amino acids were analysed by the proposed thin layer chromatographic system using silica gel as stationary phase and Ethanol/70% aq. ethylene glycol/acetone (5:3:1) as mobile phase. Separations of some closely related amino acids from their quaternary,......
Identification, method development, validation, and characterization of Aza sugars by an ion-chromatography, high-resolution mass spectrometer, and LC-MS/MS
Journal of Analytical Science and Technology - Tập 9 - Trang 1-16 - 2018
Aza sugars are organi c sugars having nitrogen containing polyhydroxyl sugar molecules. These molecules are active pharmaceutical ingredients; these are not well separated and eluted early in the HPLC and UPLC columns due to high polar nature. Aza sugars are having high conductivity hence the ion chromatography validated method has been established for the castanospermin and celgosivir along with ......
Artificial intelligence and quantum cryptography
Journal of Analytical Science and Technology - Tập 15 - Trang 1-17 - 2024
The technological advancements made in recent times, particularly in artificial intelligence (AI) and quantum computing, have brought about significant changes in technology. These advancements have profoundly impacted quantum cryptography, a field where AI methodologies hold tremendous potential to enhance the efficiency and robustness of cryptographic systems. However, the emergence of quantum c......
Laser desorption/ionization mass spectrometry of L-thyroxine (T4) using combi-matrix of α-cyano-4-hydroxycinnamic acid (CHCA) and grapheneAbstract An optimal combi-matrix for MALDI-TOF mass spectrometry was presented for the analysis of L-thyroxine (T4 ) in human serum. For the selection of the optimal combi-matrix, several kinds of combi-matrices were prepared by mixing the conventional organic matrix of CHCA with nanomaterials, such as graphene, carbon nanotubes, nanoparticles of... ...
Journal of Analytical Science and Technology - Tập 13 Số 1
Diamine oxidase-modified screen-printed electrode for the redox-mediated determination of histamine
Journal of Analytical Science and Technology - Tập 11 - Trang 1-8 - 2020
Histamine is an important biogenic amine because of its role in immune responses and the regulation of physiological functions. It is also used as a food freshness indicator, so its maximum concentration in fish is legally regulated. Although several robust and sensitive methods for histamine detection are already available, it continues to be a challenge to develop simple and portable devices tha......
Retraction Note: Method development, validation, and stability studies of teneligliptin by RP-HPLC and identification of degradation products by UPLC tandem mass spectroscopy
Journal of Analytical Science and Technology - Tập 11 - Trang 1-1 - 2020
An amendment to this paper has been published and can be accessed via the original article.
A simplified approach for determination of urinary ethyl glucuronide by gas chromatography–mass spectrometry
Journal of Analytical Science and Technology - Tập 12 - Trang 1-9 - 2021
Urinary ethyl glucuronide (EtG), an alcohol biomarker, plays an essential role in monitoring alcohol abstinence and relapse during treatment for alcohol dependence. Detection of this biomarker has become a routine in many clinical and forensic laboratories over the last few years. Most previously published methods commonly use hyphenated chromatographic techniques along with extensive extraction p......
Advanced method for the accurate measurement of tilt angle in a transmission electron microscopy goniometer
Journal of Analytical Science and Technology - Tập 9 - Trang 1-5 - 2018
In order to improve the reliability of the electron tomography (ET) technique, which reveals three-dimensional information of nanostructured materials from a series of tilted two-dimensional images, it is essential that the mechanical tilt angle be accurately measured by the transmission electron microscopy (TEM) goniometer. In this study, a calibration specimen was fabricated by nanohole patterni......
Inactivation of mammalian spermatozoa on the exposure of TiO2 nanorods deposited with noble metals
Journal of Analytical Science and Technology - Tập 14 - Trang 1-14 - 2023
Titanium dioxide (TiO2) nanorods (NRs) are well-known semiconducting and catalytic material that has been widely applied, but their toxicities have also attracted recent interest. In this study, we investigated and compared the toxic effects of TiO2 NRs and TiO2 NRs loaded with Ag or Au NPs on boar spermatozoa. As a result, sperm incubated with Ag-TiO2 NRs showed lower motility than sperm incubate......
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