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Revised d 34 S Reference Values for IAEA Sulfur Isotope Reference Materials S-2 and S-3

February 7, 2009

Author(s)

Jacqueline L. Mann, Robert D. Vocke Jr., William R. Kelly

Revised δ 34S reference values with associated expanded uncertainties (95% confidence interval (C.I.)) are presented for he sulfur isotope reference materials IAEA-S-2 (22.62 ±0.16{0/00}). These revised values are determined using two relative-difference

SEABIRD TISSUE ARCHIVAL AND MONITORING PROJECT: Egg Collections and Analytical Results for 2002-2005

February 5, 2009

Author(s)

Stacy S. Schuur, Paul R. Becker, Russell D. Day, Michael B. Ellisor, Aurore Guichard, Amanda J. Moors, David Point, Rebecca S. Pugh, David G. Roseneau

The Seabird Tissue Archival and Monitoring Project (STAMP) has continued to collect and bank murre and gull eggs to obtain new information on chlorinated pesticides, polychlorinated biphenyls (PCBs), brominated flame retardants, mercury, and organotin

Interlaboratory Comparison Study of Serum Total Testosterone [corrected] Measurements Performed by Mass Spectrometry Methods

January 30, 2009

Author(s)

Susan S. Tai, Hubert W. Vesper, S. Bhasin, C. Wang, L. A. Dodge, R. J. Singh, J. Nelson, S. Ohorodnik, N. J. Clarke, W. A. Salameh, C. R. Parker, Jr., R. Razdan, E. A. Monsell, Gary L. Myers

BACKGROUND: Though mass spectrometry (MS) assays are increasingly used for routine clinical measurements of serum total testosterone (TT), information about the variability of results is limited. This study assessed the variability of TT measurement

Thermal Decomposition Kinetics of Propylcyclohexane

January 21, 2009

Author(s)

Jason A. Widegren, Thomas J. Bruno

As part of a large-scale thermophysical property measurement project, the decomposition kinetics of propylcyclohexane was investigated. Decomposition reactions were performed at 375, 400, 425, and 450 °C in stainless steel ampoule reactors. At each

Striped Domains at the Pentacene:C 60 Interface

January 12, 2009

Author(s)

Dan B. Dougherty, W Jin, J Cullen, J Reutt-Robey, Steven W. Robey

STM observations of the initial growth stages of the first layer of pentacene on a monolayer film of C60 on Ag(111) are presented. Pentacene films nucleate and grow with molecules standing up at the Pentacene:C60 interface similar to the well known thin

Inducing analytical orthogonality in tungsten oxide-based microsensors using materials structure and dynamic temperature control

January 4, 2009

Author(s)

Kurt D. Benkstein, Baranidharan Raman, David L. Lahr, John E. Bonevich, Stephen Semancik

Alloy 600 Aqueous Corrosion at Elevated Temperatures and Pressures: An in situ Raman Spectroscopic Investigation

January 1, 2009

Author(s)

James E. Maslar, Wilbur S. Hurst, Walter J. Bowers Jr., Jay H. Hendricks

Alloy 600 coupons were exposed to air-saturated water at pressures of 15.65 MPa and 25.4 MPa and temperatures ranging from 21 C to 543 C in an optically accessible flow cell. In situ Raman spectra were collected at a number of temperatures, as the metal

Variable Temperature Scanning Tunneling Microscopy of Pentacene Monolayer and Bilayer Phases on Ag(111)

December 25, 2008

Author(s)

Dan B. Dougherty, Jim Wei, William Cullen, Janice Reutt-Robey, Steven W. Robey

Pentacene deposited onto a Ag(111) surface at 300 K is studied using scanning tunneling microscopy at temperatures of 300 K and 50 K. At 300 K, ordered pentacene structures nucleate at Ag step edges (Phys. Rev. B 2005, 72, 115430) and are

Multiplexed "Detectorless" Electrophoresis

December 14, 2008

Author(s)

David Ross, Jason Kralj

A new microfluidic electrophoresis device and technique is described that is designed specifically for multiplexed, high throughput separations. The device consists of an array of short (3 mm) capillaries connecting individual sample reservoirs to a common

Variability of The Rocket Propellants RP-1, RP-2, and TS-5: Application of a Composition- and Enthalpy-Explicit Distillation Curve Method

December 3, 2008

Author(s)

Lisa S. Ott, Amelia B. Hadler, Thomas J. Bruno

We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. This method is a significant improvement over current approaches, featuring a composition-explicit data channel for each distillate

Determination of Polybrominated Diphenyl Ether Congeners by Gas Chromatography Inductively Coupled Plasma Mass Spectrometry

December 1, 2008

Author(s)

John R. Kucklick, William C. Davis

Polybrominated diphenyl ethers (PBDEs) are widely-used as flame retardants in electronic devices and upholstery. These are mobile in the environment, persistent, and bioaccumulative and are frequently found at low (pg/g) concentrations in many

Raman Spectroscopic Determination of Electron Concentration in n-Type GaSb

November 19, 2008

Author(s)

James E. Maslar, Wilbur S. Hurst, C Wang

Phonon-plasmon coupled mode Raman spectra of n-type GaSb were measured at room temperature as a function of electron concentration. These spectra were obtained using an optical system based on 752.55 nm excitation. Utilization of this wavelength permits

Thermal Decomposition of RP-1, RP-2, and Mixtures of RP-2 With Stabilizing Additives

November 3, 2008

Author(s)

Jason A. Widegren, Thomas J. Bruno

----- FOR POLICY REVIEW ONLY ----- The thermal decomposition of RP-1, RP-2, and mixtures of RP-2 with three different additives has been investigated. The mixtures with RP-2 contained 5% 1,2,3,4-tetrahydronaphthalene (tetralin), 5% 1,2,3,4

Development of Saw Palmetto (Serenoa repens) Fruit and Extract Standard Reference Materials

October 1, 2008

Author(s)

Michele M. Schantz, Mary Bedner, Karen E. Murphy, Barbara J. Porter, K. Putzbach, Catherine A. Rimmer, Lane C. Sander, Katherine E. Sharpless, Jeanice M. Brown Thomas, Stephen A. Wise, Laura J. Wood, James H. Yen, T. Yarita, A. NguyenPho, W. R. Sorenson, J. M. Betz

Thermal and Chemical Kinetic Characterization of Multiphase and Multicomponent Substances by Laser Heating

October 1, 2008

Author(s)

Ashot Nazarian, Cary Presser

A novel approach is described that determines the thermal behavior and decomposition of multiphase solid and liquid substances, such as chemical wastes, fuels, aerosol particles, and propellants through rapid and controlled heating with laser radiation

Findings and Recommendations from the Joint NIST/AFRL Workshop on Rocket Propellants and Hypersonic Vehicle Fuels

September 25, 2008

Author(s)

Thomas J. Bruno, Matt Billingsley, Ron Bates

The Joint NIST/AFRL Workshop on Rocket Propellants and Hypersonic Vehicle Fuels was held on September 25 and 26, 2008 at the Boulder, Colorado laboratories of NIST. The workshop included oral presentations from staff* of NIST, AFRL, CPIAC, NASA, Stanford

The Electric And Magnetic Susceptibilities Of Gaseos Oxygen: Comparisons Of New Measurements and Modern Theory

September 25, 2008

Author(s)

Michael R. Moldover, E May, James W. Schmidt

We used a cross capacitor to measure the relative dielectric permittivity ε r of O 2 at 273 K, 293 K, and 323 K and at pressures up to 6.5 MPa. Simultaneously we measured oxygen's complex refractive index n using a quasi-spherical cavity resonator at

High-order nonlinear Schrodinger equation and superluminal optical solitons in room-temperature active-Raman-gain media

August 13, 2008

Author(s)

Lu Deng, Guoxiang Huang, Huijun Li, Chao Hang

We make a detailed study on the dynamics of gain-assisted superluminal optical solitons in a three-state active-Raman-gain medium at room temperature. Using a method of multiple-scales we derive a high-order nonlinear Schrödinger equation with correction

Fabrication of Polymer Microsphere Particle Standards Containing Trace Explosives Using an Oil/Water Emulsion Solvent Extraction Piezoelectric Printing Process

August 1, 2008

Author(s)

Robert A. Fletcher, J Brazin, Matthew E. Staymates, Bruce A. Benner Jr., John G. Gillen

Natural Gas Flow Calibration Service

August 1, 2008

Author(s)

Aaron N. Johnson

This document describes NIST's high pressure natural gas flow calibration service (NGFCS). Flow calibrations are conducted offsite at the Colorado Experimental Engineering Station Incorporated (CEESI) in Garner, Iowa. A parallel array of nine turbine meter

Composition-Explicit Distillation Curves of Commercial Biodiesel Fuels: Comparison of Petroleum-Derived Fuel with B20 and B100

July 2, 2008

Author(s)

Beverly L. Smith, Lisa S. Ott, Thomas J. Bruno

We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications provide for (1) a composition explicit data channel for each distillate fraction (for both qualitative and

Certification of Standard Reference Materials for Bitter Orange

July 1, 2008

Author(s)

Lane C. Sander, K. Putzbach, Bryant C. Nelson, Catherine A. Rimmer, Mary Bedner, Jeanice M. Brown Thomas, Barbara J. Porter, Laura J. Wood, Michele M. Schantz, Karen E. Murphy, Katherine E. Sharpless, Stephen A. Wise, James H. Yen, P. H. Siitonen, R. I. Evans, A. NguyenPho, M. C. Roman, J. M. Betz

Semi-Classical Line Shape Models of Rovibrational H2O Spectra Tested Using Frequency-Stabilized Cavity Ring-Down Spectroscopy

June 20, 2008

Author(s)

Joseph T. Hodges, Daniel Lisak, R. Ciurylo

In this work we present a brief review of recent results for water line shapes obtained by means of the frequency stabilized cavity ring-down spectroscopy (FS-CRDS) technique. We demonstrate its ability to enable precise spectroscopic measurements of

High resolution spectroscopy using fiber-laser frequency combs

June 8, 2008

Author(s)

Ian R. Coddington, William C. Swann, Nathan R. Newbury

The output of a femtosecond fiber laser can be both spectrally broadened and stabilized, thereby providing a broadband coherent source in the near infrared. In the frequency domain, the result is a frequency comb with frequency stabilities at the

Advanced Distillation Curve Measurements for Corrosive Fluids: Application to Two Crude Oils

June 2, 2008

Author(s)

Lisa S. Ott, Beverly L. Smith, Thomas J. Bruno

We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications provide for (1) temperature and volume measurements of low uncertainty, (2) temperature control based upon fluid