In our July issue:
COLUMNS
LC TROUBLESHOOTING
Column Storage Considerations
Several factors influence the useful lifetime of HPLC columns. Dwight Stoll considers some of the details associated with preparing a column for storage, with an eye towards choices that will pay dividends in future use of the column. Read more >> |
GC CONNECTIONS
External Influences on GC Results
Two GC instruments running the same method in the same laboratory might disagree somewhat about the same sample or standard, and two instruments in different laboratories might disagree by a larger margin. This instalment of “GC Connections” explores reasons for such observations and expectations for how well instruments might match up. Read more >> |
COLUMN WATCH
Buffer Advice for Reversed-Phase HPLC
A model set of analytes and selected applications are used to demonstrate the effects that buffers can have not only on the selectivity of a separation, but also on the sensitivity of a reversed-phase analysis when using mass spectrometry. Read more >>
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FEATURES
Measuring Mycotoxins
Rudolf Krska from the University of Natural Resources and Life Sciences in Vienna, Austria, discusses the latest analytical techniques and challenges facing analysts involved in the evolving field of mycotoxin analysis. Read more >>
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PEER-REVIEWED ARTICLES
Botanical Dietary Supplements
This review paper highlights current approaches and recent developments in PDE-5 inhibitor MS-based analyses, including those that aim at screening and structural elucidation of novel designer analogues. Read more >> |
Surface Coverage and Orthogonality Metrics in 2D Chromatography
A discussion of the role of orthogonality metrics and surface coverage metrics and their relationship to selectivity and peak capacity in two-dimensional chromatography. Read more >>
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UPCOMING WEBCASTS
Analysis of Residual Solvents in Pharmaceutical Excipients and Products by GC-VUV – Reduction of GC runtimes by greater than 5x – Ability to combine different solvent classes into a single run
Tuesday, July 18, 2017
11 am EDT | 8 am PDT | 4 pm BST | 5 pm CEST
Register >>
Orthogonal Chromatographic Techniques for the Quantitative Analysis of Potential Mutagenic Impurities
Wednesday, July 19, 2017
10 am EDT | 9 am CDT | 3 pm BST | 4 pm CEST
Register >>
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