The compound 4-methylimidazole (4-MEI) is formed as a byproduct in some foods and beverages. Caramel coloring Type III and Type IV in beverages is one of the ingredients which may contain 4-MEI. Products that potentially contain 4-MEI include certain colas, beers, soy sauces, breads, coffee, ammoniated livestock feed and other products.
The compound 4 Methylimidazole (4-MeI) is made during the production of caramel color commonly found in foods and beverages, especially sodas. The Codex Alimentarius of the World Health Organization sets a limit of 250 mg/kg of 4-MeI. Also, the state of California has added 4-MeI to its Prop 65 list at an exposure level of 29 μg/day. This study looks at 4-MeI levels in sodas and malt sodas which are sold in and outside the state of California. The first section, included in this poster, describes the performance of automated solid phase extraction of 4-MeI using conventional HPLC/MS detection. ASMS 2018, San Diego, CA
Mycotoxin testing awareness has increased as countries involved in world trade of raw agriculture and processed consumer products rely on a safe global food supply. Several mycotoxins are naturally produced and monitored; however, aflatoxins, produced mainly by the Aspergillus species, are considered to be the most important mycotoxin group in the world’s food supply to monitor.
When a sample preparation technique calls for removal of compounds using SPE, it is standard practice to determine what concentrations will produce an acceptable linear range for the assay. Traditional linear regression is often performed manually using pipettes to generate an external standard curve that unknown samples are measured against.
Automating Solid Phase Extraction (SPE) can be simple and efficient with the SmartPrep Extractor. Designed for laboratories transitioning from manual to automated SPE, the SmartPrep Extractor focuses on the essential SPE process to run a variety of sample matrices and volumes without dedicated experts.
Solid phase extraction (SPE) of transformer oils, biofuels, edible, and essential oils can offer challenges of working with difficult matrices, multiple methods, and hazardous solvents. The SmartPrep Oil & Fuel Extractor systems are complete with racks, sample tubes, and accessories packaged to automate the typical manual SPE oil and fuel procedures, removing the challenges of working with oils and fuels, while providing a consistent and simple approach to running multiple methods on the same platform.
Solid Phase Extraction (SPE) is one of the most common sample preparation techniques that can be automated with simplicity. The SmartPrep Extractor Software offers an easy and intuitive interface specifically designed to streamline the manual SPE process for 1, 3, and 6-mL cartridges. No specialized training or expertise is needed to run samples. Any technician level from novice to expert can quickly get started with SPE sample processing.
To improve upon the original SmartPrep Cartridge Extractor’s design, the SmartPrep Cartridge Extractor II includes a Ceramic Seal in each valve rather than a Rulon® Seal. These Ceramic Seals were specially selected to increase the durability of the valves with tough sample matrices, including those that may be abrasive.
Deoxynivalenol is a common mycotoxin found in wheat agriculture crops. Being the most popular agricultural cereal crop, wheat is also a dietary staple for about 35% of the global human population and animals. Safety of wheat food and agriculture products is a concern, with deoxynivalenol present in 90% of food and feed samples.
Deoxynivalenol is a common mycotoxin found in agricultural grain crops and final consumer processed products. Most impacted are wheat, barley, and corn. Deoxynivalenol, also known as Vomitoxin, is produced by Fusarium fungi and has a unique dual-stage growth cycle of producing mold during warm daylight and toxin during cool nights. There is no known procedure or processing that will remove deoxynivalenol that is already present in grain.
Mycotoxin testing in consumer food products has become increasingly important as global food trade increases, making it necessary to identify mycotoxins efficiently and accurately. Deoxynivalenol, also known as vomitoxin, is a mycotoxin commonly found in wheat feed crops. Because wheat is a highly-used raw agricultural export commodity in many counties for both animal feed and consumer food products, it is an important component in the diets of both humans and animals.
Disinfection by-products (DBP) are an ever-present nuisance in the efforts to purify drinking water, wastewater and municipal waters from various sources. An emerging class of DBP compounds with health effects is nitrosamines1-3 which result from chloramination or chlorination if the water is nitrogen-rich.
China has set ambitious goals for cleanup and monitoring of drinking water. Methods that are rugged and sensitive are required to support this effort. Chinese Environmental Agency method SL 392-2007 has been developed for this purpose and specifies a C18 cartridge for extraction and GC/MS for the detection step.
The global demand for fish as a natural source of fresh animal protein, essential fats, minerals, and vitamins continues to rise with the human population. It is estimated that natural fish resources will not be sustainable, creating the need to increase the available supply of fish through aquaculture.
Worldwide, there is great concern for the presence of semi-volatile organic compounds in surface water, groundwater, and drinking water, such as Aldrin, extremely toxic to fish and a persistent organic pollutant. China has increased concern about drinking water as sources of surface and groundwater have become polluted with microbiological, metal and organic contamination