|Determination of Metabolically Unstable Drugs in Blood by Heat-Stabilized DBS and LC-MS/MS|
The aims of this work were to investigate drug stability prior to, during and after blood spot sampling, using procaine, prulofloxacine, esmolol, and acetylsalisylic acid as examples of drug compounds with limited stability and to compare conventional DBS sampling procedure with DBS sampling including heat stabilization.
|Microfluidic analysis of amino acids using aminoacyl-tRNA synthetase coupled with spectrophotometric detection|
Analyses of free amino acids in biological fluids?—?such as urine and plasma?—?can be useful in determining disease status in clinical diagnoses . In the food industry, unique changes in amino acid concentrations are useful markers of freshness, nutrition, and taste.
|Ion Chromatography ICP-Q-MS for the Detection of Arsenic Species in Apple Juice|
Daniel Kutscher, Shona McSheehy-Ducos, Julian Wills and Detlef Jensen
Interest in the determination of Arsenic species in fruit juices has been triggered by recent media reports in the United States claiming that some apple juices may contain high amounts of Arsenic. Inorganic forms of Arsenic (As3+ and As5+) are highly toxic, whereas the organic forms (e.g. arsenobetaine) are not considered toxic. A robust IC-ICP-MS system was developed and shown to be a highly selective and sensitive technique for determination of trace element species.
|Magnetohydrodynamic Based Circular Liquid Chromatography On Chip|
Champak Das Guochun Wang and Forrest Payne
This poster demonstrates cyclic liquid chromatography on chip and shows how this can be used in other closed loop applications.
|Qualitative Comparison of Wine Process Samples with UHPLC and Ultra-High Resolution TOFMS|
Jeffrey S. Patrick, Joe Binkley, Matthew Giardina and Kevin Siek
The evaluation, identification, and quantitation of flavones, antioxidants and related nutrients, biogenic amines, and potential contaminants in wine and other foodstuffs provides valuable information on their nutritional and health values.
|Analysis of Pesticide Residues in JonaGold Apples Using QuEChERS Approach and Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry (GCxGC-TOFMS)|
Joe Binkley, John R Heim and Doug Staples
Screening and quantitation of pesticide residues in fruits and vegetables is of utmost importance for public health and safety concerns. These commodities can contain hundreds-to-thousands of analytes, making them extremely difficult for the screening and accurate quantitation of pesticide residues.
|Analysis of Fruit Commodities by GC-TOFMS and GCxGC-TOFMS Using QuEChERS Approach|
Doug Staples, Joe Binkley and John Heim
The availability of fruit commodities from a wide variety of sources has increased the need for rapid and accurate screening for pesticides in fruit. Not all fruit commodities are brought to market under the strict guidelines of the United States Department of Agriculture. Determining whether or not the Environmental Protection Agency tolerances for various pesticides have been violated is important in the risk assessment for consumers in the United States.
|Characterization of Nutrients and Actives in Herbal Supplements and Nutriceuticals Using UHPLC-Multi-Reflecting Time-of-Flight Mass Spectrometry|
Jeffrey S. Patrick, Kevin Siek and Joe Binkley
The qualitative and quantitative analysis of the content of nutritional supplements and alternative medicinal therapies is becoming more important and regulation by the FDA is imminent. High resolution mass spectrometry provides a rapid, selective, and useful mechanism for QC of extracts and finished dosage forms, producing a minable, comprehensive data set.
|Comprehensive, Fully Automated Water Analysis|
J. Kleimann, C. Emmenegger and H. Risse
This poster describes how a single analytical unit that combines titration, ion chromatography and direct measurement can be utilised for automated drinking water analysis.
|Highly Accurate Measurements of Ochratoxin A (OTA) in Different Foodstuffs|
Andreas Breidbach, J. Stroka and F. Ulberth
The European Union-Reference Laboratory for Mycotoxins at the Institute of Reference Materials and Measurements of the Joint Research Centers of the European Commission regularly conducts proficiency tests to assess the measurement capabilities of the National Reference Laboratories of the EU-Member States.
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