In our April issue:
COLUMNS
LC TROUBLESHOOTING
Be Careful of the Flow Rate
When converting methods from LC to UHPLC, don’t get confused by flow-rate settings. John Dolan explains more. |
PERSPECTIVES IN MODERN HPLC
New HPLC Systems Introduced on to the Market
This instalment highlights some of the new HPLC systems, modules, accessories, and related technology introduced at Pittcon this year. |
COLUMN WATCH
New Chromatography Columns and Accessories for 2015
Our annual review of new liquid chromatography columns and accessories, introduced at Pittcon and throughout the previous year. This year, Michael Swartz steps in as a guest columnist to write the review. |
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PEER-REVIEWED ARTICLES
Food and Beverage Analysis
This article describes a simple and rapid LC–MS method for evaluation of caffeine, taurine, and aspartame in teas, soft drinks, and energy drinks using HPLC coupled with ESI–MS detection and MISER analysis. |
Weighted Linear Least-Squares Fit — A Need? Monte Carlo Simulation Gives the Answer
Spreadsheet computer simulations can identify the influencing factors for the set-up of a calibration function such as the number of calibration points and their distribution or the position of the experimental points. By using a Monte Carlo approach, the quality of the experimental results (bias and standard deviation) can be studied under different conditions. This article presents a spreadsheet for the simulation of unweighted and weighted linear least-squares fit. |
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Upcoming Webcast
Wednesday, April 29, 2015
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FOUR PART WEBCAST SERIES: Pesticide Residue Analysis: Tips and Tricks for the Whole Workflow:
Part II: Workflow Guide for the use of LC–MS
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