LCGC Europe-04-01-2015

LCGC Europe

MISER LC–MS Analysis of Teas, Soft Drinks, and Energy Drinks

April 01, 2015

Cover Story

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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 electrospray ionization mass spectrometry detection and MISER analysis.

Weighted Linear Least-Squares Fit — A Need? Monte Carlo Simulation Gives the Answer

April 01, 2015

Features

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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.

New Chromatography Columns and Accessories for 2015

April 01, 2015

Column Watch

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Our annual review of new liquid chromatography columns and accessories, introduced at Pittcon and throughout the previous year. This year, Michael Swartz, former author of our “Innovations in HPLC” and “Validation Viewpoint” columns, steps in as a guest columnist to write the review.

Vol 28 No 4 LCGC Europe April 2015 Regular Issue PDF

April 01, 2015

Issue PDF

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Click the title above to open the LCGC Europe April 2015 regular issue, Vol 28, No 4, in an interactive PDF format.