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Topic Area: Chemical Analysis
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Displaying records 11 to 20 of 137 records.
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11. Analysis of the Structure and Function of YfcG from Escherichia coli Reveals an Efficient and Unique Disulfide Bond Reductase
Topic: Chemical Analysis
Published: 7/21/2009
Authors: Megan C Wadington , Jane E Ladner, N V Stourman, Joel M Harp, R N Armstrong
Abstract: YfcG is one of eight glutathione (GSH) transferase homologues encoded in the Escherichia coli genome. The protein exhibits low or no GSH transferase activity toward a panel of electrophilic substrates. In contrast, it has a very robust disulfidebond ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903003

12. Application of Inkjet Printing Technology to Produce Test Materials of 1,3,5-Trinitro-1,3,5 Triazcyclohexane for Trace Explosive Analysis
Topic: Chemical Analysis
Published: 10/15/2010
Authors: Eric S Windsor, Marcela C Najarro, Anna N. Bloom, Bruce A Benner Jr, Robert A Fletcher, John G Gillen, Richard Lareau, Inho Cho, Mike Boldmand
Abstract: The feasibility of using piezoelectric drop-on-demand inkjet printing to prepare test materials for trace explosive analysis is demonstrated. Both pure high explosives and plastic-bonded putty explosives were formulated into inkjet printable solut ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902979

13. Application of the Advanced Distillation Curve Method to the Aviation Fuel Avgas 100LL
Topic: Chemical Analysis
Published: 3/2/2009
Authors: Tara M Lovestead, Thomas J Bruno
Abstract: We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications to the classical method and apparatus provide for (1) a composition explicit data channel for each distillate ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900206

14. Application of the Advanced Distillation Curve Method to the Development of Unleaded Aviation Gasoline
Topic: Chemical Analysis
Published: 4/2/2010
Authors: Bret Windom, Tara M Lovestead, Thomas J Bruno
Abstract: The primary fuel used within the general aviation industry is a petroleum based gasoline blended with small amounts of tetraethyl lead (a lead-based additive used to increase the octane number of gasoline without affecting its performance) called 100 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904704

15. Assessment of the Composition and Distillation Properties of Thermally Stressed RP-1 and RP-2: Application to Fuel Regenerative Cooling
Topic: Chemical Analysis
Published: 9/28/2011
Authors: Bret Windom, Thomas J Bruno
Abstract: In this work, we measured the volatility of thermally stressed samples of RP-1 and RP-2 rocket kerosenes by use of the advanced distillation curve method. This work is part of a large program at NIST and other laboratories geared toward improving th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908525

16. Assessment of the Compositional Variability of RP-1 and RP-2 with the Advanced Distillation Curve Approach
Topic: Chemical Analysis
Published: 5/7/2010
Authors: Bret Windom, Tara M Lovestead, Jennifer Riggs, Chris Nickell, Thomas J Bruno
Abstract: RP-1 is a long-established hydrocarbon fuel that continues to be widely used as the kerosene component in rocket propulsion systems. The desire in recent years to use rocket motors many times, rather than a single time, has led to reformulations of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905293

17. Assessment of the Compositional Variability of RP-1 and RP-2 with the Advanced Distillation Curve Approach
Topic: Chemical Analysis
Published: 10/21/2010
Authors: Tara M Lovestead, Bret Windom, Jennifer Riggs, Chris Nickell, Thomas J Bruno
Abstract: RP-1 is a long-established hydrocarbon fuel that continues to be widely used as the kerosene component in rocket propulsion systems. The desire in recent years to use rocket motors many times, rather than a single time, has led to reformulations of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906029

18. Binary Diffusion Coefficients for Combustion Modeling
Topic: Chemical Analysis
Published: 11/30/0002
Authors: William S McGivern, Jeffrey A Manion
Abstract: Recent studies have demonstrated that combustion models can be as sensitive to the binary diffusion coefficients of the fuel species as to the kinetics of major chemical reactions. We have constructed a reversed-flow chromatographic apparatus for th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902522

19. Binding and Electron Transfer Between Putidaredoxin and Cytochrome P450cam (CYP101). Theory and Experiments
Topic: Chemical Analysis
Published: 9/9/1998
Authors: A. E. Roitberg, Marcia J Holden, M P. Mayhew, I V Kurnikov, D N Beratan, V L. Vilker
Abstract: A necessary step in understanding biological function in multiple metalloprotein redox systems is the description of protein-protein binding and electron transfer between two distant metal centers. In this communication, we present experimental and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830030

20. Biosynthetic origin of the 3-amino-2,5,7,8-tetrahydroxy-10-methylundecanoic acid moiety and absolute configuration of pahayokolides A and B
Topic: Chemical Analysis
Published: 6/8/2011
Authors: Li Liu, Daniel W Bearden, Kathleen S. Rein
Abstract: Pahayokolide A is a cyclic undecapeptide from the cyanobacterium Lyngbya sp. The absolute configurations of the amino acids of pahayokolide A have been determined. Pahayokolide A contains the unusual α-hydroxy-β-amino acid, 3-amino-2,5,7, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908531