The Application Notebook
September 01, 2014
Pharmaceutical/Drug Discovery
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Paper spray mass spectrometry (MS) allows for the direct analysis of pharmaceuticals, drugs of abuse, and other small molecules from blood, urine, and other biofluids (1,2).
September 01, 2014
Environmental
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In recent years, the increasing cost and uncertain availability of helium have prompted many labs to explore the use of hydrogen as an alternate carrier gas.
September 01, 2014
Food and Beverage
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Carbendazim is a widely used, broad-spectrum fungicide to control mold on citrus crops.
September 01, 2014
Medical/Biological
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Polypeptide hormones play key endocrine functions in humans. In particular, angiotensins are oligopeptide hormones, critical in the regulation of body fluids which ultimately affect blood pressure levels in individuals.
September 01, 2014
Medical/Biological
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The use of mass spectrometry as a means of detection is becoming increasingly more common among research laboratories in the field of proteomics.
September 01, 2014
Food and Beverage
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Due to the highly polar nature of saccharides, the analysis of sugars is typically achieved using hydrophilic interaction chromatography (HILIC).
September 01, 2014
Food and Beverage
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Organic arsenic compounds added to feed stocks of chicken and poultry pose serious environmental and ecological threats.
September 01, 2014
Pharmaceutical/Drug Discovery
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USP assay methods are widely used for quality control and stability testing.
September 01, 2014
Environmental
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Organophosphate pesticides (OPPs) are widely used globally for agricultural pest control.
September 01, 2014
Pharmaceutical/Drug Discovery
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The European Pharmacopoeia (Ph. Eur.) defines requirements for the qualitative and quantitative composition of medicines, as well as the tests to be carried out on medicines and on substances and materials used in their production.
September 01, 2014
Medical/Biological
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Oligonucleotides are in the center of many recent research projects including genetic testing, polymerase chain reactions (PCR), forensics, and DNA/RNA silencing.
September 01, 2014
Pharmaceutical/Drug Discovery
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Anthrolysin (ALO) is a pore forming cholesterol-dependent cytolysin (CDC) secreted by Bacillus antracis.
September 01, 2014
Medical/Biological
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Proteins of the Bcl-2 family are molecular transducers sensitive to internal and external apoptotic signals that play a key role in the regulation of apoptosis.
September 01, 2014
Pharmaceutical/Drug Discovery
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Carbon-clad zirconia phases offer dramatically different chromatographic selectivity for structurally similar compounds when compared to traditional silica-based bonded phases.
September 01, 2014
Food and Beverage
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Deoxynivalenol is a common mycotoxin found in agricultural grain crops and final consumer processed products.
September 01, 2014
Food and Beverage
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This study illustrates the successful combination of fast GC and tandem mass spectrometry to determine 360 pesticides spiked in a QuEChERS apple extract.
September 01, 2014
Environmental
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Pharmaceutical and personal care products (PPCPs) are products used for personal health or cosmetic reasons.
September 01, 2014
Article
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The numerous advantages of translating gradient chromatographic methods between the differing formats of liquid chromatography (LC) have been explored and discussed.
September 01, 2014
Pharmaceutical/Drug Discovery
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Statistic copolymers of methyl methacrylate (MMA) and methacrylic acid (MAA) are widely used in pharmaceutical applications.
September 01, 2014
Pharmaceutical/Drug Discovery
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The Agilent 1200 Infinity Series HDR-DAD Impurity Analyzer System covers a wide linear range typically up to 6000 mAU and enables the analysis of impurities typically down to 0.2 mAU.
September 01, 2014
Medical/Biological
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Methadone is a commonly prescribed pain management type drug. As such, patients are monitored on a routine basis.
September 01, 2014
Medical/Biological
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Monoclonal antibodies (mAbs) form a major class of biologics and recently biosimilars and biobetters are being added to the growing inventory of therapeutics.
September 01, 2014
Pharmaceutical/Drug Discovery
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Optimizing separation of ionizable compounds in order to find robust conditions has become an important part of method development in liquid chromatography.
September 01, 2014
Polymer
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Synthetic elastomers have replaced natural rubber to an astonishing degree, and account for more than 70% of the rubber used today.
September 01, 2014
Food and Beverage
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Two species of spearmint oil (Mentha spicata and Mentha gracilis) are cultivated in the United States.
September 01, 2014
Industrial
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Starch is used for a variety of industrial and nutritional purposes. Its functional properties are influenced by the ratio and molar masses of its macromolecular constituents, which vary with source, crop year, and climate.
September 01, 2014
General
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Since the gas flow required for the separation step in gas chromatography is frequently lower than that required to optimize the detection, nitrogen is used as a make-up gas to increase the gas flow for detection.
September 01, 2014
Pharmaceutical/Drug Discovery
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The unique surface chemistry of the FLARE diamond core-shell column combines ionic and hydrophobic separation mechanisms to effectively retain a variety of chemical species in a single run.
September 01, 2014
Issue PDF
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Click the title above to open the LCGC North America September 2014 Application Notebook, Vol 32 No s9, in an interactive PDF format.