Dangerous or Delicious? Using Chromatography to Examine Vaping. скачать в хорошем качестве

Dangerous or Delicious? Using Chromatography to Examine Vaping.

This is a replay of our biotechnology training workshop which was held Thursday Dec. 10, at 3 PM EDT. Vaping is rising in popularity but many of its health effects are unknown. In this live workshop, we performed EDVO-Kit #211 and investigate the chemical contents of three simulated e-liquids using thin layer chromatography. • Explore the health risks of e-cigarettes and vaping • Investigate the chemical contents of three simulated e-liquids • Perform Thin Layer Chromatography • Introduce chromatographic theory using two different solvent systems For the experiment: https://www.edvotek.com/211 For the slides: https://www.edvotek.com/site/pptx/edv... In this video, we focus on chromatography, which is the separation of molecules based on their physical properties. This is an important process for many types of industrial research and development, including biomedical and pharmaceutical research, which we will discuss in this workshop. The experiment featured in this livestream is Kit 211, which focuses on analyzing simulated vaping products using thin layer chromatography. In choosing this experiment, we are choosing an experiment that is a natural mix of STEM concepts. This experiment separates brightly colored dyes based on their physical properties. Using this information, we identify specific molecules in a complex mixture. While this technique is very powerful, it is also easy enough to do in the classroom laboratory – or even in your home, like I’m doing today. ______________________________ Don't forget to like and subscribe to our social media! YouTube:    / edvotekinc   Twitter:   / edvotek   Instagram:   / edvotek     / edvotek   _______________________________ Smoking kills. The connection between smoking cigarettes and life-threatening conditions like heart disease, stroke, and lung cancer are clear and well known. But what about e-cigarettes and vaping? Here the messages are mixed. Sometimes e-cigarettes are presented as a safer alternative to more traditional tobacco products. Other times vaping is described as an alarming and dangerous new trend that’s creating the next generation of nicotine users and causing lasting damage to people’s lungs and bodies. So, let’s talk more about what vaping is, what chemicals are involved, and how researchers can evaluate the effects of vaping in the short and long term. E-cigarettes come in countless shapes and sizes and go by many names including vapes, tanks, and ENDS ( or electronic nicotine delivery systems). Despite their differences in appearances, all these devices have the same basic construction - a chamber to hold liquid, a heating element such as a coil, a battery, a microprocessor, and a mouthpiece. Together, these parts heat solutions called e-liquids to the point where it creates a smoke-like mist. While we think of this as a vapor, is more accurately an aerosol, or a suspension of solid or liquid particles in a gas. Many users breathe in this aerosol in order to deliver a potent dose of nicotine. Other users choose to consume nicotine-free e-liquids for the flavors, or to purchase or make black-market e-liquids that can contain additional drugs. When chemical analysis is performed, around 100 chemical components are present in e-liquids, including flavorings, nicotine, and other drugs. Several of these substances are capable of causing cancer in living tissue and are categorized as carcinogens. Others are classified as irritants because they cause inflammation in our bodies or as poisons because they cause injury and death at high doses. The popularity of vaping is growing in many demographics. In recent years, the popularity of vaping has grown exponentially. Originally, vaping was promoted as a way for tobacco consumers to quit smoking. However today, many vapers have never used anything but ENDS and e-liquids. While vaping is considered less harmful than smoking cigarettes it is still not considered safe to use or to inhale second-hand. Unfortunately, there are huge gaps in what we currently know about the safety and long-term health effects of vaping. Several health risks are beginning to emerge as vaping becomes more common, and as people are partaking in vaping for extended periods of time. Except for infrequent cases of ENDS units causing dangerous explosions or fires, most health concerns are related to the chemical components of e-liquids. These include solvents like propylene glycol, drugs like nicotine, and contaminants like heavy metals as well as a range of flavors, preservatives, and aromatic transporters. What we do know, from the data that has been available, is that there are a lot of variables when it comes to vaping and the effects on human health. But what we can quickly and easily analyzed are the chemical components within e-liquids, and we can use thin layer chromatography to do that.