In this presentation we discuss different packing technologies for Silica material in the HPLC column. The differences between fully porous and superficially porous particles (also known as Fused Core or Core shell) and the impact on the chromatographic separation are explained.  We will also introduce you to Monolithic HPLC columns and the special features of this innovative Stationary Phase Silica material. For all these different packing technologies we will introduce the column families with the different functionalities available plus one application example from the Food & Beverages industry.
In addition we will also explain the HILIC separation mode and how in this mode polar analytes can be separated according to polarity in an approach with orthogonal selectivity compared to the well known Reverse Phase separations.
 

Analytical testing requires the availability of well characterized, reliable reference materials for either confirming the identity, purity or quantity of an analyte in a sample. Manufacturers of Certified Reference Materials (CRMs) have to operate under ISO/IEC 17025 and ISO 17034 accreditations in order to provide traceable CRMs with confirmed stability and homogeneity.
This presentation will show different techniques that can be used for the quantification of organic compounds and how Merck can rely on a big variety of in-house skills at their four ISO/IEC 17025 and ISO 17034 accredited CRM manufacturing sites to provide a wide range of analytical standards and CRMs for food testing applications.  
 

Purified water plays a critical role in most of the analyses performed in modern food and beverage testing laboratories. Having consistently high-quality water on hand is of paramount importance to obtain accurate and reliable results.

In this webinar, you will gain a deeper understanding about the potential impact of water purity on your laboratory results. You will receive practical advice on how to select the most appropriate water quality to prepare microbiology media, especially as it refers to supporting compliance with the ISO® 11133 regulation. The impact of water quality on sensitive analytical techniques, such as LC-MS, ICP-MS and molecular biology, will also be discussed. Strategies for overcoming the challenges posed by water contaminants will be provided.

In addition to ensuring the consistent quality of water, the benefits of other water purification system features, including user-friendly design, data management solutions and lower environmental impact, will be highlighted.

The sample preparation is one of the most important steps to assure that the measured results are correct. A sample preparation for Photometric methods is always necessary when we want to measure the anions and cations when they are not free available. With this webinar we will give an overview about the different type of samples and show what can be done to get the samples in a form that we can do the analyses.

ISO 11133:2014 is a mandatory standard for all ISO 17025-accredited labs for microbiological analysis of food, feed and water. It is also widely used by non-accredited labs. ISO 11133 and its latest amendments describes the preparation, production and performance testing of culture media from this whole area. Since its publication as a full ISO standard for food and water microbiology, it has been implemented in many labs, but still there are many open questions for the daily lab work.
This webinar gives practical tips for daily handling of culture media including preparation, shelf-life testing, microbiological and physical performance testing amongst other topics.