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9 q&more articles about the topic liquid chromatographyrss
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A comparison of different analysis techniques for determination and species analysis of mercury
Mercury is undisputedly one of the most toxic elements. In 2013, the Minamata Convention on Mer-cury to restrict the production and emission of this heavy metal was adopted in Geneva. It regulates the production, use and storage of mercury. For example, new mines may no longer be built and ...
Smart sample preparation improves selectivity of analytical procedures for biopharmaceuticals and other drug products
Impurity testing is an essential part of pharmaceutical quality control because toxicity and content of impurities contained in drug products can impair patient safety. This requires suitable, validated analytical methods.
Using mass spectrometry to detect the presence of small polymer molecules
For several decades, food packaging has made handling food easier and helped to maintain its quality. Plastic packaging possesses the advantage that it is light and flexible, with a vast variety of polymer modifications allowing a wide range of usages.
ICH Linearity Studies using Automated Standard Preparation and UHPLC
According to the International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH), it is necessary to test analytical methods for their linearity as part of a method validation study. The typical process for this is to prepare standards ...
Nano-, micro-, and two-dimensional HPLC are already proving their worth
A major topic during the HTC conference held in Bruges, which is focused on issues relating to hyphenation processes involving HPLC and innovative detection techniques, was the discussion concerning system volumes of modern UHPLC systems. It is again clear, according to many experts at least, ...
New approaches for high quality information
In analytical sciences one of the major goals is to develop and validate methods for the identification and quantification of molecules in complex samples to support investigations in the pharmaceutical sciences, environmental sciences, food sciences, biology and medicine.
Automated MOSH/MOAH determination with the aid of coupled LC-GC
Once only of academic interest, the combination of liquid chromatographic separation with subsequent separation in the gas-phase is proving to be suitable for routine use. In routine laboratory work, the method continues to present a major challenge, above all with regard to precision, ...
Improving the Efficiency and Quality of Analytical Workflows
Analytical sample and standard preparation in a pharmaceutical or QA/QC laboratory is typically a manual procedure that requires that solids be weighed and diluted to the mark volumetrically. A minimum of 50 ml of solution is usually prepared for analytical measurements, even though the amount ...
Protein analysis using multidimensional liquid chromatography with monolithic phases and mass spectrometry
Proteins play a fundamental role in our day-to-day lives. Thanks to proteins we can speak, move about and think; they protect us from disease and repair damage to our bodies. Proteins are also becoming more popular as active pharmaceutical ingredients: in 2012, the market share of ...
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