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LCGC North America
january 5, 2017
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The Top 16 Articles of 2016

As another year of chromatographic excellence passes into history, the LCGC editorial team celebrates some of the highlights of last year by selecting the top 16 articles of 2016.


1. A Universal Reversed-Phase HPLC Method for Pharmaceutical Analysis

This universal method was fast (2 min) and provided reasonable peak capacity and excellent peak shapes for many new chemical entities. Read more


2. How Does It Work? Part 1: Pumps

If you understand how pumps operate, it is easier to solve problems. "LC Troubleshooting" Editor John W. Dolan explains what you need to know. Read more


3. Glycosylation in mAb Therapeutic Products: Analytical Characterization and Impact of Process

This installment of the "Biotechnology Today" column reviews best practices and recent advances in characterizing glycosylation. Read more


4. Trends in Sample Preparation

Doug Raynie presents a comparison of the results from a new survey on sample preparation techniques to those of previous surveys, from 1991 to 2013, revealing some interesting trends. Read more


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5. Analysis of Nicotine Alkaloids and Impurities in Liquids for e-Cigarettes by LC–MS, GC–MS, and ICP-MS

Various analytical MS methods were developed to investigate the chemical composition of liquids used in electronic cigarettes and to characterize their quality. Read more


6. Generic UHPLC Method for the Simultaneous Analysis of Compounds with a Wide Range of Polarities

The generic method described here involves a UHPLC system equipped with two external switching valves to connect HILIC and reversed-phase LC columns in series for the sequential analysis of polar and apolar compounds, for use in fields such as environmental analysis, biomarker discovery, and proteomics. Read more


7. Effects of Column Inner Diameter and Packed Bed Heterogeneities on Chromatographic Performance

This installment of "Column Watch" looks at the sources of band broadening in small-diameter HPLC columns, with an emphasis on eddy dispersion. Read more


8. Statistics for Analysts Who Hate Statistics, Part I: Collect and Examine Your Data

This first instalment in a new series of very short tutorials explains, in the simplest manner, how statistics can be both useful and accessible, even for chromatographers who normally find statistics difficult. Read more


9. Practical HPLC Method Development Screening

A frequently asked question about the other important aspects of "screening" in HPLC, including mobile phase composition, gradient parameters, and flow rate, inspired the theme of this instalment of The LCGC Blog. Read more


10. Simplifying Mass Spectrometry Through New Ionization Technology: Application to Drugs and Clinical Analyses

A newly discovered method, matrix-assisted ionization (MAI), offers a new ionization approach for problems not readily addressed by current technologies, as well as simplicity, sensitivity, and cost effectiveness. Read more

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11. UHPLC Instrument Variations and Approaches to Ease the Method Transfer Process

This study determined the typical inter-instrument variations in dwell volume, extracolumn dispersion, and mixing efficiency, and assessed techniques to account for the variations. Read more


12. An Indisputable Case of Matrix Effects in Blood Alcohol Determinations

While reviewing a blood alcohol investigation, Kevin A. Schug discovered major method validation protocol deficiencies. Matrix effects may have resulted in blood alcohol concentrations being over-estimated, resulting in a potentially significant injustice. Read more


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13. The Synthetic Cannabinoid Chemical Arms Race and Its Effect on Pain Medication Monitoring

An investigation of C18 and phenyl-hexyl column chemistries for definitive identification of 13 synthetic cannabinoid metabolites in patient samples. Read more


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14. Retention Time Prediction Based on Molecular Structure in Pharmaceutical Method Development: A Perspective

This work provides a practical approach to streamlining chromatographic method development, with a focus on reversed-phase liquid chromatography, ion chromatography, and HILIC. Read more


15. Quality by Design: A Tool for Separation Method Development in Pharmaceutical Laboratories

The trends observed when applying QbD to the development of separation methods in pharmaceutical analysis are presented. Read more


16. Using Headspace Gas Chromatography for the Measurement of Water in Sugar and Sugar-Free Sweeteners and Products

This fast, automated method was shown to be accurate and precise for 16 liquid sweeteners, and is likely more accurate than Karl Fischer titration. Read more

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