Common Mistakes in GC-UV Sample Preparation—and How to Avoid Them
Gas chromatography with ultraviolet detection (GC-UV) is often praised for its reliability and sensitivity, but ask anyone who’s worked at the bench and they’ll tell you: the instrument itself is rarely the problem. More often, it’s what happens before the sample even enters the column. Small oversights in sample preparation—things as simple as a pipette […]
Carcinogenic Substances Found in Swedish Snus
A recent recall of Granit Original White Portion Large, a snus product by British American Tobacco Sweden, highlights the critical role of laboratory testing in safeguarding consumer health. The recall, prompted by elevated levels of benzo[a]pyrene, a known carcinogen, underscores how rigorous analysis can detect risks before they escalate. Benzo[a]pyrene, a polycyclic aromatic hydrocarbon, forms […]
Supercritical Fluid Chromatography (SFC): A Powerful analytical Food Analysis Technique
Supercritical Fluid Chromatography (SFC) has gained prominence as a valuable analytical technique in food analysis, providing numerous benefits that enhance accuracy, speed, and depth of results. SFC integrates elements of liquid chromatography (LC) and gas chromatography (GC), using a supercritical fluid—commonly carbon dioxide—as the mobile phase. This fluid exists in a state where it displays […]
Characterizing Cooked Cheese Flavor with Gas Chromatography
A collaborative study conducted by the Department of Food and Nutritional Sciences at the University of Reading (UK) and Synergy Flavours (High Wycombe, UK) aimed to identify the volatiles contributing to the aroma of cooked cheese, with a focus on the role of fat content during cooking. The research identified key volatiles and odorants in […]
How Many Times Can You Use a Sorbent Tube? A Comprehensive Guide
Sorbent tubes are essential tools of air sampling, providing precise and reliable measurements of volatile organic compounds (VOCs) and other pollutants. These tubes, packed with a variety of sorbents, capture airborne contaminants for subsequent analysis. However, a common question arises among professionals and researchers: How many times can you use a sorbent tube? This article […]
Managing the Forever Chemical — Effective Solutions for PFAS Discovery and Measurements
Per- and polyfluoroalkyl substances (PFAS), often referred to as perfluorochemicals (PFC), have become pervasive, infiltrating various environmental mediums such as soil, water, food, and air. Their persistent nature necessitates thorough monitoring to comprehend their environmental impact. Understanding the lifecycle of PFAS, from production to disposal, is crucial in identifying sources and evaluating their effects on […]
Different Gas Chromatography Methods for Assessing Variability in Alcohol Quality Control
A recent investigation delved into the application of gas chromatography (GC) for evaluating relative response factors in quality control procedures for alcoholic beverages. The maintenance of high-quality standards in alcoholic beverages is crucial to the food and beverage industry, given the significant impact of alcohol on societal and cultural dynamics. This necessity for quality control […]
More toxic chemical compounds in cigarettes found
In the realm of tobacco consumption, the practice of smoking has long been associated with a myriad of health risks, primarily stemming from the noxious compounds deeply embedded in cigarettes. A burgeoning wave of awareness has spurred individuals to explore alternatives to traditional smoking. In response to this pursuit of a healthier choice, Swenico.cz introduces […]
What Are Hyphenated Techniques?
Over the years, the field of analytical techniques has witnessed the development of numerous methods tailored for specific purposes or goals. In the contemporary scientific landscape, researchers have at their disposal a diverse array of analytical tools. However, the integration of these methods has given rise to a new frontier—hyphenated techniques. In 1980, Thomas Hirschfield […]
The Impact of GC-UV Systems with Open Hatch and AutoSampler Compatibility
In the realm of analytical sciences, precision and efficiency are the pillars upon which groundbreaking discoveries are made. The emergence of GC-UV systems with open hatch and autosampler compatibility marks a monumental shift in analytical instrumentation, ushering in a new era of automation and convenience for researchers and scientists across diverse industries. Understanding the Evolution […]