Article
Biochemistry & Molecular Biology
Margherita Longoni, Carlotta Beccaria, Letizia Bonizzoni, Silvia Bruni
Summary: In this study, a thorough investigation was conducted on one of Fontana's artworks using non-invasive and micro-invasive methods, revealing the composition of the metallic paint layer and underlying dark layer.
Article
Multidisciplinary Sciences
Kelsie E. Long, Larissa Schneider, Simon E. Connor, Niamh Shulmeister, Janet Finn, Georgia L. Roberts, Atun Zawadzki, T. Gabriel Enge, John P. Smol, Chris Ballard, Simon G. Haberle
Summary: The impacts of human-induced environmental change vary across different regions, with tropical ecosystems facing the potential risk of sudden collapse due to multiple interacting pressures. This study examines the ecological dynamics of Lake Kutubu in Papua New Guinea over the past 90 years, highlighting the recent collapse of algal communities as a critical tipping point with ongoing repercussions for the wetland ecosystem. Incorporating a historical perspective into wetland management and conservation models is essential for mitigating the impacts of biodiversity loss and other ecological catastrophes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Engineering, Chemical
Ch Venkateswara Rao, Alok Rout, Anil Boda, Sk Musharaf Ali, K. A. Venkatesan
Summary: The introduction of tetra-alkyl ammonium ionic liquids has shown exceptional extraction efficiency for actinides due to their unique mechanisms that differ from traditional imidazolium ionic liquids. The use of these hydrophobic ionic liquids has the potential to overcome the limitations associated with cation exchange mechanisms in metal extraction processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Laura Kronlachner, Johannes Frank, Erwin Rosenberg, Andreas Limbeck
Summary: Polymeric composite materials are increasingly important due to their versatility and adaptability. Current analysis methods cannot provide the necessary information on both organic and elemental constituents. This study presents a novel approach using laser ablation and concurrent measurements with EI-MS and ICP-OES to directly characterize the main components of solid polymer samples.
ANALYTICA CHIMICA ACTA
(2023)
Article
Family Studies
Richard Eves
Summary: In the highlands of Papua New Guinea, many male coffee farmers believe they have the right to engage in sexual activities with their spouse without considering her wishes, which is rooted in local understandings of marriage. The conflict between traditional beliefs and modern influences has led to discrepancies in partners' understanding of marital rights and responsibilities. Despite many women still enduring marital rape, there are signs of improvement in some areas.
CULTURE HEALTH & SEXUALITY
(2021)
Article
Energy & Fuels
Wolfgang Brehm, Vittorio Marangon, Jaya Panda, Sanjay B. Thorat, Antonio Esau del Rio Castillo, Francesco Bonaccorso, Vittorio Pellegrini, Jusef Hassoun
Summary: The electrochemical behavior of a Li/S battery using a carbon-coated Al current collector is studied. The use of a binder-free few-layer graphene (FLG) substrate enables a thin and high-performance sulfur electrode. The Li/S cell using FLG shows competitive volumetric and gravimetric energy densities with commercially available Li-ion batteries.
Article
Chemistry, Analytical
Adele Bosi, Alessandro Ciccola, Ilaria Serafini, Greta Peruzzi, Valentina Nigro, Paolo Postorino, Roberta Curini, Gabriele Favero
Summary: Non-invasive analyses are commonly used for studying inorganic components in cultural heritage, but identification of organic substances can be challenging when sampling is not allowed. Organic dyes are particularly difficult to detect due to their low concentration and tendency to fade. Hydrogels' retention and release properties make them suitable for extracting dyes directly from artifacts, while maintaining their integrity. This study tested the use of gel microextraction on hydrophilic paint layers, comparing different concentrations of Agar-gel with Nanorestore Gel (R) High Water Retention for extracting madder dyes from Arabic gum paint layers. UV-vis spectroscopy and SER spectroscopy were effective in identifying the analytes, but the invasiveness of the sampling procedure depended on the retention power of the hydrogels.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Analytical
Mohamed O. Amin, Entesar Al-Hetlani, Igor K. Lednev
Summary: Fingermark analysis is a key tool in criminal investigation, and the biochemical composition of FMs has attracted considerable attention as a vital source of forensic evidence. Vibrational spectroscopy is used to better understand the chemistry of latent FMs and improve detection methods. The article critically reviews the advances in FM analysis using vibrational spectroscopic techniques over the past 10 years, highlighting current limitations and discussing ways to overcome them to support the development of FM analysis techniques meeting modern forensic science requirements.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Anthropology
Kristine Hardy, Chris Ballard, Mathieu Leclerc
Summary: This paper provides a comprehensive summary of the forms and production processes of Agarabi pottery, combining published sources and unpublished records from ethnoarchaeological fieldwork amongst Agarabi speakers in the Kainantu District in 1987. Agarabi vessels are characterized by their elongated ovoid shape, pointed bases, and out-curving rims. The decoration, when present, consists of incisions or punctate impressions, often from multi-toothed combs. This study lays the foundation for further research on the cultural processes and historical trajectories that have shaped this unique Highlands ceramic ware.
JOURNAL OF ANTHROPOLOGICAL ARCHAEOLOGY
(2023)
Article
Food Science & Technology
Ana Borba, Andrea Gomez-Zavaglia
Summary: Infrared spectroscopy is a powerful yet underutilized technique in the field of Food Science and Technology. This review highlights the available approaches for analyzing the physical and chemical properties of food products and ingredients using infrared spectroscopy, including macromolecules and changes resulting from processing and storage. The use of infrared spectroscopy should be encouraged for rapid and accurate determinations in both academic and industrial contexts.
CURRENT OPINION IN FOOD SCIENCE
(2023)
Article
Environmental Sciences
Yu Xing, Jing Li, Jingjing Yang, Junyi Li, Weiyi Pang, Francis L. Martin, Li Xu
Summary: This study used spectrochemical techniques to investigate the cytotoxicity of nanoplastics with different surface charges in HepG2 cells. The results showed that all three types of nanoplastics caused biomolecular alterations in cells, affecting cellular lipids, proteins, amino acids, and genetic material. Surface modifications were found to lead to cellular biochemical changes and adverse biological effects, with PS-NH2 exhibiting higher toxicity compared to PS or PS-COOH.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biochemistry & Molecular Biology
Aslan Yu. Tsivadze, Alexey A. Bezdomnikov, Vladimir E. Baulin, Liudmila I. Demina, Kirill P. Birin, Dmitriy V. Baulin, Yuliana I. Rogacheva
Summary: It has been confirmed that isopropyl salicylate can be used as a key component in a new efficient extraction system for selective separation of alkali metal cations, similar to 1,3-diketones. DFT modeling shows that six-membered metallacycles are formed between isopropyl salicylate and alkali metal cations (Li+, Na+, K+), with stability decreasing in the series Li > Na > K, resulting in enhanced affinity for lithium. Isopropyl salicylate's extraction ability is demonstrated in the presence of trioctylphosphine oxide (TOPO). The newly obtained complexes and their extracts were characterized using FT-IR, Raman, and NMR spectroscopy.
Review
Chemistry, Multidisciplinary
Qiuqi Zhang, Lei Zhao, Guoliang Qi, Xiaoru Zhang, Cheng Tian
Summary: The coronavirus pandemic poses a significant threat to human health, and early detection and prevention of further escalation are of utmost importance. The current method of sample collection and RNA testing using the nasopharyngeal swab method and real-time polymerase chain reaction has limitations. Optical techniques, such as optical sensing, spectroscopy, and imaging, show promise in virus detection due to their speed, accuracy, and cost-effectiveness. This mini review summarizes the development of vibrational spectroscopy techniques for the detection of the SARS-CoV family, highlighting their advantages and future possibilities in the field of photonics-based devices for COVID-19 detection.
FRONTIERS IN CHEMISTRY
(2023)
Review
Chemistry, Physical
Matthias Weiling, Felix Pfeiffer, Masoud Baghernejad
Summary: This article reviews recent developments in vibrational spectroscopy techniques for studying interphases in lithium-ion batteries (LIBs). Interphases play a crucial role in defining the performance, cyclability, and safety of LIBs. The article introduces the vibrational spectroscopy techniques and their application in characterizing interphases, and summarizes the latest studies on the fundamental properties, composition, and structure of interphases using these techniques.
ADVANCED ENERGY MATERIALS
(2022)
Article
Environmental Sciences
Zijiang Yang, Murat Celik, Hisayuki Arakawa
Summary: This study investigates the feasibility of using the carbonyl index (CI) derived from Raman spectra as an indicator of plastic degradation and its relationship with the CI calculated from Fourier transform infrared (FTIR) spectra, using microplastic samples of polyethylene (PE) from surface seawater. While some significant relations between FTIR CI and Raman CI were observed, weak functional relationships due to low signal-to-noise ratio (SNR) of Raman spectra were indicated by small R2 values. These findings highlight the challenges of establishing a functional relationship between FTIR CI and Raman CI, including the uniformity of Raman spectra, optimal Raman measurement parameters, appropriate peaks for Raman CI calculation, spectral processing methods, and their interdependence.
MARINE POLLUTION BULLETIN
(2023)
Article
Medicine, Legal
Sharni Collins, Barbara Stuart, Maiken Ueland
Summary: This article reports on a study conducted at the Australian Facility for Taphonomic Experimental Research (AFTER) that investigated the decomposition process of clothed human remains. The study found a clear difference in the absorption of human decomposition products in textiles located in the anterior and posterior regions of the body.
AUSTRALIAN JOURNAL OF FORENSIC SCIENCES
(2023)
Article
Construction & Building Technology
Marie Joshua Tapas, Paul Thomas, Kirk Vessalas, Vute Sirivivatnanon
Summary: This study investigates the mechanisms of alkali-silica reaction (ASR) mitigation by supplementary cementitious materials (SCMs) under accelerated mortar bar test (AMBT) conditions. The study compares the effect of traditional SCMs (fly ash, slag, metakaolin, and silica fume) on ASR expansion, calcium silicate hydrate (C-S-H) composition, and portlandite consumption as well as on the availability of silicon and aluminum in solution. Results show that at typical SCM replacement levels for effective ASR mitigation (15% metakaolin, 25% fly ash, and 65% slag), the Si/Ca and Al/Si ratios of C-S-H are increased to comparable values, suggesting that at these dosages the SCMs contribute almost equivalent amounts of silicon and aluminum in solution. Studies of blended cement + SCM pastes show that the order of pozzolanicity is as follows: silica fume > metakaolin > fly ash > slag, which is consistent with the order of efficacy of SCMs in mitigating ASR expansion and the measured concentrations of silicon in solution. Solubility studies of the SCMs showed formation of sodium aluminum silicate hydrate (N-A-S-H) in fly ash and metakaolin and formation of calcium aluminum silicate hydrate (C-A-S-H) in slag after 28 days of exposure to AMBT conditions. This highlights the role of alkali activation of SCMs in ASR mitigation under AMBT conditions.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2022)
Article
Engineering, Civil
Yogesh Kumar Ramu, Paul Stephen Thomas, Vute Sirivivatnanon, Kirk Vessalas
Summary: This study identifies the critical cement parameters that cause expansive delayed ettringite formation (DEF) and compares them with Australian cement standards and specifications. The results show that general-purpose (GP) cements adhering to Standards Australia and specifications for low sulphate and alkali contents are not susceptible to expansive DEF. However, there is a lack of experimental evidence supporting the low risk of Australian cements for expansive DEF.
AUSTRALIAN JOURNAL OF CIVIL ENGINEERING
(2023)
Article
Archaeology
Barbara Stuart, Sharon Wong, Rosemary Goodall, Alice Beale, Cancy Chu, Petronella Nel, Holly Amin-Jones, Paul Thomas
Summary: This study investigates the chemical changes that can occur in sealable polyethylene bags used for storing heritage items. It is found that polyethylene bags can undergo oxidation when exposed to certain storage conditions, which affects their long-term viability for storage. The study also highlights the potential interaction between additives used in the bags and other chemicals, which can lead to color changes or chemical reactions.
STUDIES IN CONSERVATION
(2023)
Article
Biochemistry & Molecular Biology
Lynn Chua, Agnieszka Banas, Krzysztof Banas
Summary: ATR-FTIR microscopy and O-PTIR spectroscopy are valuable techniques for analyzing complex paint cross-sections in cultural heritage. O-PTIR has the advantage of resolving degradation compounds at sub-micron resolution, surpassing the limitations of ATR-FTIR.
Article
Medicine, Legal
Barbara Stuart, Jennifer Guan, Sharni Collins, Paul Thomas, Maiken Ueland
Summary: This study conducted a preliminary investigation of household wipes, using infrared spectroscopy and thermogravimetric analysis to identify polyester and/or viscose fibers as the main components, along with binders to differentiate source types. The different sensitivities of fiber types to biodeterioration underscore the importance of future environmental studies for accurately characterizing non-woven fabrics in evidence.
AUSTRALIAN JOURNAL OF FORENSIC SCIENCES
(2022)
Article
Medicine, Legal
Sharni Collins, Barbara Stuart, Maiken Ueland
Summary: Determining the post-mortem interval (PMI) is crucial in complex death investigations involving human remains. It can greatly assist in reconstructing forensically relevant events surrounding the death. However, due to the complexities of decomposition, PMI determination can still be challenging in some cases. Therefore, identifying biomarkers of human decomposition is an emerging and essential area of research.
FORENSIC SCIENCE INTERNATIONAL
(2023)
Article
Genetics & Heredity
Amber O. Brown, Maiken Ueland, Barbara H. Stuart, Greta J. Frankham
Summary: This study designed and validated a forensic genetic toolkit for species identification and geographic origin of shingleback lizards, which can amplify shingleback DNA from various types of samples and differentiate genetic lineages.
FORENSIC SCIENCE INTERNATIONAL-GENETICS
(2023)
Article
Construction & Building Technology
Marie Joshua Tapas, Paul Thomas, Kirk Vessalas, Elsie Nsiah-Baafi, Liam Martin, Vute Sirivivatnanon
Summary: This study compares the effectiveness of reactive aggregate powders and fly ash in mitigating alkali-silica reaction (ASR) using accelerated mortar bar test (AMBT). The results confirm that both reactive aggregate powders and fly ash can reduce ASR, with fly ash showing better results. Microstructural analysis reveals that cracking is reduced in mortars with reactive aggregate powders and fly ash compared to plain OPC mortar. Elemental analysis demonstrates that reactive aggregate powders can modify the composition of C-S-H to enhance ASR mitigation, although fly ash has a greater effect. Thermogravimetric analysis shows that reactive aggregate powders exhibit pozzolanic properties similar to fly ash, but do not contribute to the compressive strength of the mortars.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Construction & Building Technology
Vute Sirivivatnanon, Paul Thomas, Marie Joshua Tapas, Thuc Nhu Nguyen
Summary: This paper examines the reliability of the Australian Standards accelerated mortar bar test (AMBT) and concrete prism test (CPT) for assessing alkali-silica reaction (ASR) and its mitigation using supplementary cementitious materials (SCMs). The study demonstrates that both AMBT and CPT have good correlation with long-term performance of concrete and can predict the effectiveness of SCMs. However, AMBT tends to be more conservative than CPT in classifying reactivity and requires higher SCM dosages for achieving non-reactive classification.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Geochemistry & Geophysics
Boris Chauvire, Valentin Molle, Florine Guichard, Benjamin Rondeau, Paul Stephen Thomas, Emmanuel Fritsch
Summary: The susceptibility to cracking in gem opals is affected by the method of storage, with water-stored opals requiring lower temperatures to induce cracking compared to air-stored opals. Cracking in water-stored opals is attributed to drying shrinkage, while cracking in air-stored opals is attributed to super-heated water-induced decrepitation.
Article
Chemistry, Multidisciplinary
Amber O. Brown, Peter J. Green, Greta J. Frankham, Barbara H. Stuart, Maiken Ueland
Summary: Biological volatilome analysis is complex due to the large number of compounds and differences in peak areas within datasets. Traditional volatilome analysis relies on dimensionality reduction techniques, but these methods often assume statistical assumptions which are violated in biological data. This study explores the impact of different statistical models and log transformation on volatilome dimensionality reduction. The analysis of Shingleback lizard volatilomes demonstrates the importance of considering multiple explanatory variables and the effects of log transformation in downstream analyses.
Article
Multidisciplinary Sciences
Sharni Collins, Luca Maestrini, Francis K. C. Hui, Barbara Stuart, Maiken Ueland
Summary: Human remains often contain textile materials, making them a common source of evidence. The discovery of human remains in outdoor environments increases exposure to scavenging activity and decomposition. Traditional methods for estimating postmortem interval (PMI) can be challenging, but recent research has found success in using lipid analysis to detect and monitor changes over time. This study utilized generalized linear mixed models (GLMMs) to analyze 30 lipid outcomes in combination with accumulated-degree-days (ADD), and the results indicated oleic and palmitic acids as suitable biomarkers for future use in determining PMI. The study also addressed interspecies differences between humans and pigs.
Article
Chemistry, Analytical
Michel Rocha Baqueta, Augusto Cesar Costa-Santos, Ana Paula Rebellato, Gisele Marcondes Luz, Juliana Azevedo Lima Pallone, Federico Marini, Alexsandro Lara Teixeira, Douglas N. Rutledge, Patricia Valderrama
Summary: This study reports the essential element composition of new Brazilian Canephora coffees and applies chemometric tools for analysis. The results demonstrate the suitability of this method for origin and species discrimination based on the inorganic fraction of coffee.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mengjie Li, Jiapeng Wang, You Zhou, Yang Chen, Lingying Xia
Summary: A novel photoelectrochemical biosensor based on gold nanoparticles and specific structures was developed for highly sensitive detection of mercury ion. The multiple sandwich structures hindered electron supply and light harvesting, resulting in a weakened PEC signal, while the specific structures extinguished the PEC signal, enabling quantitative detection of Hg2+. The sensor exhibited high selectivity and stability, with potential applications in environmental detection, biological analysis, and medical research.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Mohamed A. Korany, Rasha M. Youssef, Marwa A. A. Ragab, Mostafa A. Afify
Summary: A stability-indicating fit-for-purpose method was developed for the determination of HC, TL, and PS in syrup dosage form. The method successfully separated CL from THY and quantified the analytes using HPLC-DAD. The robustness of the method was assessed through statistical analysis and self-validation.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Lingling Lin, Minyu Li, Ping Li, Chenqing Ye, Huanglong Zhuang, Shaohuang Weng, Feng Chen
Summary: This study developed a highly sensitive and selective electrochemical sensor for simultaneous detection of dopamine and uric acid. The sensor exhibited excellent anti-interference and stability, and could accurately measure dopamine and uric acid in human urine samples.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Peifang Chen, Caiyun Jiang, Zhouping Wang, Hong-zhen Lian, Xiaoyuan Ma
Summary: In this study, a high-performance SERS-active aptasensor was successfully developed for the quantitative analysis of AFB1 in cereal grains, which is of great significance in the field of food safety.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
E. Abas, C. Marina-Montes, C. Perez-Marin, J. Puimedon, J. Anzano
Summary: This study conducted a comprehensive measurement of natural and anthropogenic radionuclides in soil, water, and air in different locations around Deception Island in Antarctica. The results revealed significant levels of 210Pb and anthropogenic 137Cs in soil samples near old human settlements and facilities, as well as detectable levels of 137Cs and 60Co in water samples from old hunting areas. The findings also suggested potential resuspension processes based on higher-than-expected air quality results.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Joao Franciso Allochio, Nayara A. dos Santos, Nathalia dos S. Conceicao, Clara S. D. Baptista, Keyller B. Borges, Valdemar Lacerda Jr, Wanderson Roma
Summary: This study developed a fiber spray ionization mass spectrometry (FSI-MS) method, which shows great potential in detecting illicit drugs. Compared with paper spray ionization mass spectrometry (PSI-MS), FSI-MS demonstrates higher sensitivity in COC detection.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Dina A. Ahmed, Ola G. Hussein, Mamdouh R. Rezk, Mohamed Abdelkawy, Yasmin Rostom
Summary: The main goal of this study was to develop two green chromatographic techniques, HPLC and TLC, for the determination of alcaftadine (ALF) in pharmaceutical formulation and biological samples. The developed HPLC technique showed high efficiency and minimal environmental impact, successfully identifying ALF in the presence of its degradate. The TLC method provided a stability indicating study for ALF and was determined to be safe, green, and eco-friendly.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Abdullah Taner Bisgin
Summary: A green, speedy, and handy method for separation and determination of four commonly used food colorants was established using vortex assisted sequential-simultaneous liquid phase micro-extraction (VA-SS-LPME). The method does not require any instrumental chromatographic techniques. The procedure includes sequential separation steps using different extractants and simultaneous UV-vis spectrophotometric determination steps. The method is environmentally friendly and applicable for determination of colorants in food and pharmaceuticals.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Yifan Zhang, Tong Zhang, Wenjing Ba, Li Liu, Yuan Rao, Xiaodan Zhang, Hanhan Zhang, Xiu Jin
Summary: This paper proposes a novel spectral transfer modelling method based on neural network architecture searching for the asymptomatic prediction of Akizuki pear cork spot disorder. The experiments show that the model by this method is more effective, achieving an accuracy of 82.61%.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
P. K. Fathima Anjila, G. R. Tharani, Anand Sundaramoorthy, Venkat Kumar Shanmugam, Karthikeyan Subramani, Shanmugavel Chinnathambi, Ganesh N. Pandian, Vimala Raghavan, Andrews Nirmala Grace, Singaravelu Ganesan, Mangaiyarkarasi Rajendiran
Summary: This work proposes a rapid and sensitive spectroscopic method for detecting melamine in food products using rare-earth Terbium-doped Graphene Quantum Dots (Tb-GQDs) synthesized by microwave and simple chemical conjugation methods. The synthesized Tb-GQDs show a spherical shape with a size of approximately 6 nm and a quantum yield of 52%. The maximum detection limit for melamine concentration in milk and milk products is found to be 0.31 μM. The dual emitting Tb-GQDs provide a sensitive and effective platform for real-time detection of melamine in food samples, particularly in milk, and show promising potential in the food industry.
MICROCHEMICAL JOURNAL
(2024)
Review
Chemistry, Analytical
Piyush Dey, Mandeep Kaur, Akhil Khajuria, Dilmeet Kaur, Manpreet Singh, Hema Kumari Alajangi, Neha Singla, Gurpal Singh, Ravi Pratap Barnwal
Summary: Environmental issues, such as the uncontrolled release of dangerous pollutants, have significant impacts on human health. Traditional methods for detecting pollutants require specialized personnel and equipment, but nanotechnology has improved the performance of biosensors. This article discusses the use of nanotechnology in pollutant detection and the associated techniques.
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Sa Dong, Qiuyun Shi, Lingjun Guan, Yulong Wang, Pengyan Liu, Cunzheng Zhang, Jianguo Feng
Summary: In this study, a highly sensitive indirect competitive chemiluminescence enzyme immunoassay (icCLEIA) method was developed for the determination of sodium pentachlorophenolate (PCP-Na) and its metabolite pentachlorophenol (PCP). The method showed high specificity and affinity with a detection limit of 0.0032 ng/mL for PCP-Na and 0.0192 ng/mL for PCP. The method had no cross reaction with other chlorophenols compounds except for PCP. The average recoveries in chicken, pork and fish samples were 81.3-105.8% with low coefficient of variation (CV).
MICROCHEMICAL JOURNAL
(2024)
Article
Chemistry, Analytical
Palaniappan Ilayaraja, Murugan Manivannan, Paramasivam Parthiban
Summary: Nirmatrelvir, an antiviral drug used for the treatment of COVID-19, has been recommended by the World Health Organization. We developed an optimized analytical method for the quantification of Nirmatrelvir and its products, with high sensitivity and a wide linear range. The method also meets the requirements for greenness evaluation.
MICROCHEMICAL JOURNAL
(2024)
