In our November issue:
COLUMNS
Focus on Quality
Can You Demonstrate the Integrity of Your Data?
R.D. McDowall
Recently, regulators in both the United States and United Kingdom issued guidance concerning laboratory data integrity that followed serious noncompliances found during inspections. Here, we explore what this guidance means for spectroscopy systems used for analysis in regulated laboratories and derive some common-sense guidance that you can follow.
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Chemometrics in Spectroscopy
Calibration Transfer, Part VI: The Mathematics of Photometric Standards Used for Spectroscopy
Jerome Workman, Jr., and Howard Mark
How do current commercial instruments vary with respect to photometric accuracy and precision over time? What are potential solutions to this challenge? Read more >> |
Atomic Perspectives
Field Research and Experiential Learning with Undergraduates: Investigations of Roman Glass Tesserae by Portable X-Ray Fluorescence Spectroscopy
Mary Kate Donais, Monica Redente, and David George
An application of atomic spectroscopy for experiential learning through archaeological investigations is presented. Read more >> |
Spectroscopy Spotlight
Laser-Induced Breakdown Spectroscopy: A Closer Look at the Capabilities of LIBS, Part II
Dr. Richard R. Hark, a professor in the Department of Chemistry at Juniata College in Huntingdon, Pennsylvania, discusses his work using LIBS for emergency response to hazardous materials. Adam L. Miller, the director at the Huntingdon County Emergency Management Agency in Pennsylvania, also talks about his work as a first responder and how he has been involved in Hark's research. Read more >> |
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PEER-REVIEWED ARTICLE
Sequentially Shifted Excitation Raman Spectroscopy
John B. Cooper, Kent L. Wise, Richard W. Jones, and Sarah Marshall
A method for removing fluorescence-induced backgrounds from Raman spectra using sequentially shifted excitation (SSE) is described using a temperature-tuned, distributed Bragg reflector diode laser to produce the multiple excitation spectra required to implement the SSE algorithm. Examples applying the SSE method to analysis of motor oils and edible oils are given.
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ICP & ICP-MS Supplement
Simplifying Mixed-Food Microwave Sample Preparation for ICP-MS Analysis
David Gunn
The selection of critical factors used in the optimization and simplification of food and mixed-batch food microwave digestion is described.
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Improving ICP-MS Analysis of Samples Containing High Levels of Total Dissolved Solids
Ed McCurdy and Wim Proper
How the use of a new aerosol dilution approach can improve the matrix tolerance of an ICP-MS instrument. Read more >> |
ICP Emission Spectrometry: Arsenic at 228 nm — Interferent or Analyte?
Joachim Nölte and Bernhard Radziuk
A comparison of several performance criteria such as full width at half maximum, background equivalent concentrations, limits of detection, and more. Read more >> |
High-Resolution ICP-OES for the Determination of Trace Elements in a Rare Earth Element Matrix and in NdFeB Magnetic Materials
Matthieu Chausseau, Alice Stankova, Zhaofen Li, Philippe Hunault, and Hassanali Savadkouei
How to use high-resolution ICP-OES for the analysis of refined REE materials, CeO2 and Gd2O3, and NdFeB magnet quality control. Read more >> |
| ON DEMAND WEBCASTS |
Tip Enhanced Raman Imaging No Longer Purely A Research Technique
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Demystifying Interference Removal
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| NEW WEBCASTS |
Assessing the Capability of Spectroscopy Techniques to Evaluate Water Quality
November 13, 2014 at 1:00 PM EST
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USP <232> and <233> Validation Protocol in Your Method
December 2, 2014 at 11:00 AM EST
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Advancing FT-IR Imaging – Synchrotron IR Imaging in Your Lab
Europe: Wednesday, December 10, 2014: 2:00pm GMT / 3:00pm CET
United States: Wednesday, December 10, 2014: 8:00am PST / 10:00am CST / 11:00am EST
Asia-Pacific: Thursday, December 11, 2014: 12:00pm CST / 1:00pm JST
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