Reliable Acrylamide Analysis | Optimizing Split Injections | Second Source Reference Standards | and More!

Get Quick and Reliable Separations of Acrylamide with Allure Acrylamide LC Columns

Sample complexity, matrix interferences, and extremely low concentrations make analyzing acrylamide in food or drinking water a challenge. Restek’s Allure Acrylamide LC columns were developed specifically for this purpose and provide excellent retention characteristics for separating acrylamide from matrix components.

Tips for How to Optimize Your Split Injections

When performing a split injection, there are several considerations to keep in mind to improve the quality of your chromatography. But what should you change and why? In this Restek Tip video, we show you how to optimize your liner selection, split ratios, inlet temperature, and initial oven temperature.

When One Isn’t Enough: Understanding “Second Source” Reference Standards

The definitions of second source standards and sources vary between industries and accreditation. In this blog post, we look at two industries that share a similar approach, environmental and cannabis, to detail what these terms mean. We then explore the work that goes into the manufacture of Restek’s reference standards and our experience providing second source standards.

Analyzing Pesticides, Mycotoxins, and Cannabinoids in Cannabis Gummies with Raptor ARC-18 LC Columns

As cannabis edibles increase in popularity, reliable workflows for the easy determination of pesticides, mycotoxins, and cannabinoids in these diverse matrices are highly desired. In this application note, we describe a complete workflow for the analysis of these analytes in cannabis gummies using a single extraction procedure.

Comprehensive Nitrosamine Impurity Analysis Using Raptor Biphenyl LC Columns

Due to the range of chemicals and processes used in drug production, new methods are needed to analyze potential nitrosamine impurities that can form. This article details the development of a flexible LC-MS/MS screening method that allows more comprehensive nitrosamine impurity analysis.

Assessing Column Suitability for EN 15199 with Restek’s Rtx-1 and SimDist GC Columns

In the first installment of this ChromaBLOGraphy series that explores column suitability for EN 15199, we look at the performance of Restek’s Rxi-1 and SimDist GC columns. Here, we compare a film thickness of 0.10 µm to a thickness of 0.09 µm—a dimension that has been successfully used in method validation by many labs.

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