in

A high-throughput plasmonic tongue using an aggregation assay and nonspecific interactions: classification of taste profiles in maple syrup

Anal. Methods, 2020, Advance Article
DOI: 10.1039/C9AY01942A, Paper
Simon Forest, Trevor Théorêt, Julien Coutu, Jean-Francois Masson
A simple colorimetric test detects off-flavour profiles of maple syrups in minutes, which are detectable by the naked eye.
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in

Sample treatment based on molecularly imprinted polymers for the analysis of veterinary drugs in food samples: a review

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00533A, Critical Review
Israel Samuel Ibarra, J. M. Miranda, Irma Perez, Aldo C Jardinez, Gabriela Islas
The use of veterinary drugs in medical treatments and in the livestock industry is a recurrent practice. In subtherapeutic doses during prolonged times act to growth promoters. Residues of these...
The content of this RSS Feed (c) The Royal Society of Chemistry




in

Effects of harvesting and extraction methods on metabolite recovery from adherently growing mammalian cells

Anal. Methods, 2020, Advance Article
DOI: 10.1039/C9AY02753J, Paper
Yun Luo, Ningbo Geng, Baoqin Zhang, Jiping Chen, Haijun Zhang
We compare the efficiencies of different cell harvesting methods and metabolite extraction methods in sample preparation procedures and provide a cell sample processing protocol which focuses on maximizing metabolite recovery ranging from polar to lipidic ones.
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Multivariate optimization of an ultrasound-assisted extraction procedure for the determination of Cu, Fe, Mn, and Zn in plant samples by flame atomic absorption spectrometry

Anal. Methods, 2020, Advance Article
DOI: 10.1039/D0AY00554A, Paper
Floriatan Santos Costa, Raquel Viana Pinto Leal, Clissiane Soares Viana Pacheco, Fábio Alan Carqueija Amorim, Raildo Mota de Jesus, Luana Novaes Santos, Erik Galvão Paranhos da Silva
A new ultrasound-assisted extraction method simple and fast was developed employing multivariate optimization.
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in

Colorimetric indicators for volatile amines based on succinic anhydride (SAh)-grafted poly (lactic acid) (PLA)

Anal. Methods, 2020, Advance Article
DOI: 10.1039/D0AY00550A, Paper
Adrian Lopera-Valle, Anastasia Elias
Smart materials that can undergo changes in color upon the detection of amines have the potential to provide information on the freshness of fish and meat.
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in

Facile dispersive solid-phase extraction based on humic acid for the determination of aflatoxins in various edible oils

Anal. Methods, 2020, Advance Article
DOI: 10.1039/D0AY00534G, Paper
Ping Liu, Yan-Hua Liao, Hao-Bo Zheng, Yang Tang
Aflatoxins (AFs), as the secondary metabolites produced by some toxigenic fungi of Aspergillus species, are well known to be extremely harmful to humans and animals because of their high toxicity, mutagenicity, carcinogenicity, and teratogenicity.
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in

Miniaturized QuEChERS method for determination of 97 pesticide residues in wine by ultra-high performance liquid chromatography coupled to tandem mass spectrometry

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00744G, Paper
Gabrieli Bernardi, Magali Kemmerich, Martha B Adaime, Osmar Damian Prestes, Renato Zanella
A miniaturized sample preparation method was developed and validated for the multiresidue determination of 97 pesticide residues in wine samples. The proposed extraction procedure is based on QuEChERS acetate method...
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in

A rapid and colorimetric biosensor based on GR-5 DNAzyme and self-replicating catalyzed hairpin assembly for lead detection

Anal. Methods, 2020, 12,2215-2220
DOI: 10.1039/D0AY00091D, Paper
Fang Wang, Jianyuan Dai, Hongli Shi, Xiaoqian Luo, Lan Xiao, Cuisong Zhou, Yong Guo, Dan Xiao
A rapid and colorimetric biosensor for Pb2+ detection has been constructed on the basis of Pb2+-dependent GR-5 DNAzyme and the self-replicating catalyzed hairpin assembly (SRCHA) reaction.
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in

Detection of organophosphorus compounds using a surface acoustic wave array sensor based on supramolecular self-assembling imprinted films

Anal. Methods, 2020, 12,2206-2214
DOI: 10.1039/D0AY00211A, Paper
Yong Pan, Tengxiao Guo, Genwei Zhang, Junchao Yang, Liu Yang, Bingqing Cao
In this study, diisopropyl methylphosphonate (DIMP), tributyl phosphate (TBP), and dimethyl methylphosphonate (DMMP) were selected as organophosphorus chemical warfare agent (CWA) simulants.
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in

Hydrothermal synthesis of Auricularia auricula derived nitrogen, phosphorus-doped carbon dots and application in Ag(I) and 4-nitrophenol detection and bioimaging

Anal. Methods, 2020, 12,2237-2243
DOI: 10.1039/D0AY00316F, Paper
Yujiao Tu, Suping Wang, Xiaotian Yuan, Pengfei Song, Yunlin Wei, Kunhao Qin, Qi Zhang, Xiuling Ji
Schematic of the synthetic route for fluorescent Aa N,P-CDs and their application in the detection of 4-NP and Ag(I) and bioimaging.
The content of this RSS Feed (c) The Royal Society of Chemistry




in

Adsorptive removal of Hg2+ from environmental water samples using thioglycerol-intercalated magnetic layered double hydroxides

Anal. Methods, 2020, 12,2279-2286
DOI: 10.1039/D0AY00448K, Paper
Ali Esrafili, Mahnaz Ghambarian, Mohammad Tajik, Mahroo Baharfar
Herein, the removal of Hg2+ from environmental water samples was carried out using a novel nanoadsorbent based on magnetite nanoparticles coated by a thioglycerol-intercalated layered double hydroxide.
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in

LC-MS in combination with DMBA derivatization for sialic acid speciation and distribution analysis in fish tissues

Anal. Methods, 2020, 12,2221-2227
DOI: 10.1039/D0AY00100G, Paper
Junjie Du, Qiwei Zhang, Jianjun Li, Qi Zheng
For sialic acid speciation analysis, DMBA provides superior chromatographic separation efficiency and comparable MS/MS spectra with DMB.
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in

Identification of Gentiana rigescens from different geographical origins based on HPLC and FTIR fingerprints

Anal. Methods, 2020, 12,2260-2271
DOI: 10.1039/D0AY00309C, Paper
Yanli Zhao, Tianjun Yuan, Lihua Wu, Ji Zhang, Zhitian Zuo, Yuanzhong Wang
Gentiana rigescens is a traditional Chinese medicine with efficacy in liver protection, as a cholagogic, anti-hyperglycemic, and anti-hypertension agent, and in relieving spasms and pain.
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in

Selection and optimization of protein and carbohydrate assays for the characterization of marine biofouling

Anal. Methods, 2020, 12,2228-2236
DOI: 10.1039/D0AY00272K, Paper
Chloe Richards, Nicole O'Connor, Diveena Jose, Alan Barrett, Fiona Regan
Biofilms comprise a set of microorganisms attached to a surface through extracellular polymeric substances (EPS). Development of reliable analytical assays are valuable in determining the rate of biofilm attachment on surfaces.
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in

Simultaneous aptasensor assay of ochratoxin A and adenosine triphosphate in beer based on Fe3O4 and SiO2 nanoparticle as carriers

Anal. Methods, 2020, 12,2253-2259
DOI: 10.1039/D0AY00311E, Paper
Xiluan Yan, Mengmeng Jiang, Yuting Jian, Jing Luo, Xinxin Xue, Xin Chen, Xiangjuan Zheng, Fanrong Ai
In this work, a chemiluminescence (CL) method based on dual aptasensors using Fe3O4 and SiO2 nanoparticles (NPs) as carriers is developed for the simultaneous detection of ochratoxin A (OTA) and adenosine triphosphate (ATP) in beer.
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in

Ion chromatography for monitoring [NTf2]− anion contaminants in pure and saline water

Anal. Methods, 2020, 12,2244-2252
DOI: 10.1039/D0AY00337A, Paper
Coby J. Clarke, Liem Bui-Le, Jason Hallett
An optimized ion chromatography method for quantifying highly polarizable [NTf2] anions in high salinity wastewater is presented.
The content of this RSS Feed (c) The Royal Society of Chemistry




in

Detection of radium at the attogram per gram level in copper by inductively coupled plasma mass spectrometry after cation-exchange chromatography

Anal. Methods, 2020, 12,2272-2278
DOI: 10.1039/D0AY00512F, Paper
Mélodie Bonin, Dominic Larivière, Pavel P. Povinec
In this study, a new method was developed for the separation and isolation of radium from metallic copper.
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in

What’s novel in the new Eurachem guide on uncertainty from sampling?

Anal. Methods, 2020, 12,2295-2297
DOI: 10.1039/D0AY90051F, AMC Technical Brief
Analytical Methods Committee, AMCTB No. 96
This Technical Brief aims to explain how the new second edition of the Eurachem guide, Measurement uncertainty arising from sampling, differs significantly from the first edition that was published in 2007.
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in

Development and validation of a real-time microelectrochemical sensor for clinical monitoring of tissue oxygenation/perfusion

Anal. Methods, 2020, Advance Article
DOI: 10.1039/D0AY00206B, Paper
Gama Theophile Gnahoré, Jack L. Kelly, Saidhbhe L. O'Riordan, Fiachra B. Bolger, Michelle M. Doran, Michelle Sands, John P. Lowry
Oxygen is critically important to tissue viability and there is increasing demand for its reliable real-time clinical monitoring in order to prevent, diagnose and treat several pathological disorders, including hypoxia, stroke and reperfusion injury.
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in

A sensitive and selective fluorescent probe for the detection of endogenous peroxynitrite (ONOO-) in live cells

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00012D, Paper
Yaru Sun, Baoli Dong, Yaru Lu, Wenhui Song, Abdul Hadi Mehmood, Weiying Lin
Peroxynitrite (ONOO−) is one of reactive oxygen species, and plays a vital role in many physiological and pathological processes. Given that the ONOO− level is closely related with many serious...
The content of this RSS Feed (c) The Royal Society of Chemistry




in

A simple paper-based approach for arsenic determination in water using hydride generation coupled with mercaptosuccinic-acid capped CdTe quantum dots

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00273A, Paper
Oraphan Thepmanee, Kanlaya Prapainop Katewongsa, Obnithi Nooppha, Nuanlaor Ratanawimarnwong, Weena Siangproh, Orawon Chailapakul, Kriangsak Songsrirote
This research aims to develop a simple paper-based device for arsenic detection in water samples where a hydride generation technique coupled with mercaptosuccinic acid-capped CdTe quantum dots (MSA-CdTe QDs) as...
The content of this RSS Feed (c) The Royal Society of Chemistry




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ELISA as an effective tool to determine spatial and seasonal occurrence of emerging contaminants in the aquatic environment

Anal. Methods, 2020, Advance Article
DOI: 10.1039/D0AY00426J, Paper
Carla Patrícia Silva, Tânia Carvalho, Rudolf J. Schneider, Valdemar I. Esteves, Diana L. D. Lima
Monitoring emerging contaminants is essential as they represent a risk to the aquatic environment. ELISA is a promising method for their quantification mostly because it allows controlling their concentration levels through large screening campaigns.
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in

Dispersive micro-solid phase extraction based on graphene/polydopamine composite for the extraction of pyrethroids in water samples

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00562B, Paper
Qinqin Xu, Kexin Qiao, Chen Yan, Zikai Liu, Runhua Lu, Wenfeng Zhou
In this study, a simple, rapid, precise, and environmentally friendly microextraction named dispersive micro-solid phase extraction based on graphene/polydopamine composite as sorbent was investigated for the analysis of four pyrethroids...
The content of this RSS Feed (c) The Royal Society of Chemistry




in

The application of antibody – aptamer hybrid biosensors in the clinical diagnostics and environmental analysis

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00678E, Critical Review
Marta Jarczewska, Elzbieta Malinowska
The growing number of various diseases and the increase of environmental contamination are the causes for elaboration of novel methods for their detection. The possibility of application of affinity-based biosensors...
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in

A flower-like Ag coated with molecularly imprinted polymers as surface-enhanced Raman scattering substrate for sensitive and selective detection of glibenclamide

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00575D, Paper
Xiaohui Ren, Xin Li
The flower-like Ag, was formed by nanosheets self-assembly, as SERS active substrate was utilized for preparation of flower-like Ag@molecularly imprinted polymers (MIPs) surface-enhanced Raman scattering (SERS) sensor. Based on the...
The content of this RSS Feed (c) The Royal Society of Chemistry




in

Fabrication of an electrochemical sensor based on metal-organic framework ZIF-8 for quantitation of silver ion: optimizing experimental conditions by central composite design (CCD)

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00843E, Paper
Farzaneh Hashemi , Ali Reza Zanganeh, Farid Naeimi , Maryam Tayebani
The ZIF-8 was synthesized and carbon paste electrode (CPE) modified with this metal-organic framework utilized for quantitation of silver(Ι) by differential pulse anodic stripping voltammetry (DPASV) technique. The prepared ZIF-8...
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Digital Reference Section (DRS) Virtual Programs: New blog post invites readers to "Sample a Taste of History This Thanksgiving"

Find a new and historic recipe for a dish to put on your Thanksgiving table in What Mrs. Fisher Knows About Old Southern Cooking. This cookbook, published in 1881, is highlighted in a recent post on the Library of Congress Blog. Abby Fisher perfected her culinary skills as an enslaved cook on a South Carolina plantation but went on to establish a successful catering business in San Francisco and publish a compilation of her recipes—one of the first by an African-American. Learn more about this remarkable woman and, this Thanksgiving, sample a taste of history!

Click here to go to the Library of Congress Blog post, "Sample a Taste of History This Thanksgiving!"




in

January 15 Intro to loc.gov

Make the most of the Library's online collections: photographs, maps, sound recordings, films, legal and historical documents, and more. Join the Digital Reference Section's next free one-hour webinar for an interactive orientation to loc.gov.

Title: Introducing loc.gov: Orientation and Research Strategies
Date
: Tuesday, January 15
Time
: 11:00 am - 12:00 noon EST

Registration (required): Please register via Eventbrite.

Orientations are held in real time via webinar software, which allows participants from around the country and the world to join us. Confirmation and log-on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian!




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April 3 Webinar: Caught in the Web? Online Tools for Business Research

Please join us for our April topical webinar:

Caught in the Web? Online Tools for Business Research

With so many options available, identifying the best ways to meet your research needs online can be a challenge. Please join our business librarians for an overview of freely available tools for business research, for beginning and intermediate-level users. Topics discussed will include: types of business information, effective use of online search engines, the importance of the deep web, identifying reliable sources of business information, and more. By the end of this program participants will be able to successfully search a research topic online, navigate selected Internet sources, and discover resources and services offered through the Library of Congress Business Reference Section.

Date: Wednesday, April 3
Time: 12:00 noon – 1:00 pm EDT
Registration: Please register via Eventbrite

How to Attend:

Web discussions are held in real time via webinar software, which allows participants from around the country and the world to join us. Registration is required. Confirmation and log on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

Technical requirements: Participants must have access to an Internet-connected computer or device with speakers or headphones. There is also a telephone option for listening to audio.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian.




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May 30 Webinar: Happy Birthday Walt!: Digitized Walt Whitman Collections from the Manuscript Division

Reminder!!

Please join us for our May topical webinar:

Happy Birthday Walt!: Digitized Walt Whitman Collections from the Manuscript Division

May 2019 marks the 200th anniversary of the birth of poet Walt Whitman, who revolutionized the style and content of American poetry with his 1855 publication of Leaves of Grass. Whitman was also a journalist, printer, publisher, orator, and prose writer.

The Library of Congress holds the largest group of Whitman-related special collection materials in the world, including printed materials, rare books, photographs, and manuscripts. In this webinar program, Manuscript Division historian Barbara Bair highlights the content and research use of three digitized Whitman manuscript collections as well as programs celebrating Whitman’s birthday at the Library of Congress.

Date: Thursday, May 30
Time
: 1:00 pm – 2:00 pm EDT
Registration (required): Please register via Eventbrite.

This program will be held in real time via webinar software, which allows participants from around the country and the world to join us. Confirmation and log-on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian!

 




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Sept. 12 Intro to loc.gov

Make the most of the Library's online collections: photographs, maps, sound recordings, films, legal and historical documents, and more. Join the Digital Reference Section's next free one-hour webinar for an interactive orientation to loc.gov.

Title: Introducing loc.gov: Orientation and Research Strategies
Date
: Thursday, September 12
Time
: 2:30 pm - 3:30 pm EDT

Registration (required): Please register via Eventbrite.

Orientations are held in real time via webinar software, which allows participants from around the country and the world to join us. Confirmation and log-on instructions will be sent via email. Please read the Library of Congress Comment and Posting Policy.

ADA: Request ADA accommodations five days in advance at (202) 707-6362 or ada@loc.gov. Registration for the program is also required.

Questions? Ask A Librarian!




in

Perils of Perestroika : viewpoints from the Soviet press, 1989-1991 / edited by Isaac J. Tarasulo.

Wilmington, Del. : SR Books, 1992




in

The Canada-US border in the 21st century [electronic resource] : trade, immigration and security in the age of Trump / John B. Sutcliffe and William P. Anderson.

Abingdon, Oxon : Routledge, 2019.




in

North American borders in comparative perspective [electronic resource] / edited by Guadalupe Correa-Cabrera and Victor Konrad.

Tucson : University of Arizona Press, 2020.




in

A history of ancient Moab from the Ninth to First centuries BCE [electronic resource] / by Burton MacDonald.

Atlanta : SBL Press, [2020]




in

The Oxford handbook of Anglo-Saxon archaeology [electronic resource] / edited by Helena Hamerow, David A. Hinton and Sally Crawford.

Oxford : Oxford University Press, 2011.




in

The Oxford handbook of Roman Egypt [electronic resource] / edited by Christina Riggs.

Oxford : Oxford University Press, 2012.




in

Recharting the Black Atlantic [electronic resource] : modern cultures, local communities, global connections / edited by Annalisa Oboe and Anna Scacchi

New York : Routledge, 2008




in

Asian-European relations [electronic resource] : building blocks for global governance? / edited by Jürgen Rüland [and others]

London ; New York : Routledge, 2008




in

The United States and Iran [electronic resource] : sanctions, wars and the policy of dual containment / Sasan Fayazmanesh

London ; New York : Routledge, 2008




in

Covid-19 Factoid: Over 3,000 dying daily, and three other data trends

The US, Italy and Spain together share almost half the total Covid-19 cases across the globe




in

Covid-19 Factoid: Gap between daily new cases and recoveries widening

The world is adding over 70,000 cases everyday while the daily recoveries are still sub-15,000 on an average in the last three days.




in

Covid-19 Factoid: Counting the dead - from the US to Punjab and Iran

The US remains the most affected country with over 340,000 cases and the death toll at over 11,000




in

Covid-19 Factoid: Pain and recovery as cases set to cross 1.5 mn mark

Germany, where 40 per cent of all infected persons are recovering, is doing the best by that metric among the five worst-affected nations




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Covid-19 Factoid: Just 3 states account for half of new India cases in Apr

While North America and Europe account for the bulk of all coronavirus cases globally, half of new cases reported in India have come from Delhi, Maharashtra and Tamil Nadu alone




in

Covid-19 factoid: Alarm bells ring as India adds 1,500 cases in a day

Country's death toll consistently rising too, taking just two days to add the last 50 fatalities to the total.




in

Business activities significantly hit; recovery may take over a year: Survey

A CII survey indicates that the country may experience a protracted slowdown in economic activity.




in

GSTN Helpdesk handles over 56,000 taxpayer issues in one month of lockdown

GST Network Helpdesk on Sunday said it has handled over 56,000 taxpayer issues in one month since the nationwide lockdown was imposed on March 25.




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I-T dept, GSTN, CBIC caution people against phishing emails promising refunds

Separately GST Network, the company handling the technology backbone for Goods and Services Tax, cautioned against a fraud website onlinefilingindia.in asking taxpayers not to reveal personal and bank details.




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India looks to save Rs 25,000 crore by stocking cheap oil

India is looking to shave Rs 25,000 crore off its crude import bill by storing cheap oil in ships for future use, allowing the government fiscal headroom for spending on more public welfare measures needed in its fight against the coronavirus pandemic.