Refine by
Automatic Sample Preparation Articles & Analysis
31 articles found
In agricultural biotechnology and plant physiology, fatty acids quantification plays a critical role in understanding metabolic pathways, lipid biosynthesis, and nutritional value. Researchers are increasingly interested in the fatty acid composition of crops and microalgae to improve yield, oil quality, and stress resistance. As the demand for bio-based solutions rises, precise measurement of ...
What is GC-MS? GC-MS combines the features of gas chromatography (GC) and mass spectrometry (MS) to identify different substances within a test sample. It is an essential tool for qualitative and quantitative analysis of complex lipid mixtures, providing high sensitivity and specificity. This dual functionality allows for the separation of complex mixtures and the precise identification of ...
Haloacetic acids (HAAs) are commonly produced as disinfection byproducts (DBPs) from water treatment processes. Some HAAs are regulated by the author- ities and have been classified as potentially carcino- genic. They have traditionally been analyzed by gas chromatography (GC), a technique that requires time-consuming sample extraction and derivatiza- tion, leading to higher costs per analysis. ...
Why is sample preparation prior to separation essential for your analysis? When using ion chromatography (IC) as an analytical technique, samples often cannot be injected directly onto the separation column. There are several reasons for this: samples may contain particles or colloids, the analyte concentration can be too high or low, the sample matrix is unsuitable for a direct injection, or ...
ByB&W Tek
Analyzing different types of water samples on a regular basis presents several challenges for analysts. Depending on the type of lab (e.g., municipal or water bottling facilities), the number of samples to be analyzed can vary significantly. Every day such laboratories receive hundreds of samples that must go through pH, conductivity, and alkalinity testing, among others. If additional tests ...
Even though combustion ion chromatography (CIC) is regarded as an up-and-coming sample preparation and analysis technique, the basic process behind CIC has already existed for many years. This blog post introduces the history of this technique, the working principle, and some applications for CIC.\r\n"}}">Even though combustion ion chromatography (CIC) is regarded as an up-and-coming sample ...
This is the third and final post in our series providing you with tips and tricks on the proper use of ion chromatography columns. In the first part, we mostly discussed the standard operation conditions as well as operational limits for columns, while in the second post, we focused on application related topics and what elution parameters can be changed to modify the separation performance. In ...
Why is sample preparation prior to separation essential for your analysis? When using ion chromatography (IC) as an analytical technique, samples often cannot be injected directly onto the separation column. There are several reasons for this: samples may contain particles or colloids, the analyte concentration can be too high or low, the sample matrix is unsuitable for a direct injection, or the ...
The analysis of beverages is extremely important for the general health of the population. Why is this so? Our bodies are composed of about 60% water, depending on several factors like weight and sex. Hydration is one of our basic physiological needs, as noted in Maslow’s hierarchy of needs. When we are dehydrated, a number of problems occur, from irritability to confusion leading to severe ...
With a founding team that used to work at Mobileye, among other companies, Sight made an early bet on using machine vision to analyze blood samples and provide a full blood count comparable to existing lab tests within minutes. ...
When used as part of the cryo-ET workflow, the Aquilos 2 allows researchers to prepare more and thinner samples for a clearer view of the inside of cells. ...
We live in challenging times. Everyday, the tabloids, and other media channels are full of worrisome news of our changing environment, caused by humanity with its ever-tightening grasp on our planet. The net result is the ominous and uncertain future of our landscape and our environment. What can we, as corporate citizens, do to help? We, at Questron (Automated Sample Preparation Specialist), ...
The hazardous constituents of cigarette smoke have attracted considerable attention lately, especially with increasing regulation around the world limiting or banning smoking in public places – and even in private cars if children are present. From an analytical perspective, however, there is much that remains to be learnt about the composition of cigarette smoke, because of its high ...
Abstract Increasing concerns over the availability of helium, and its rising cost, has led the United States Environmental Protection Agency (USEPA) to update drinking water Method 524 to USEPA Method 524.4. This new method affords environmental laboratories increased Purge and Trap (P&T) parameter flexibility and permits the use of nitrogen as a sample purge gas. For this application note, ...
Abstract As helium continues to become more expensive, many labs are searching for more cost effective carrier gas options. This study demonstrates the effectiveness of the Atomx automated sample prep system's nitrogen purge feature in conjunction with Thermo Scientific's TRACE 1300 series Helium Saver inlet at producing quality data while also reducing helium consumption. Calibration and method ...
Abstract In developing the Atomx Automated Sample Prep System, Teledyne Tekmar integrated both a P&T concentrator and a multi-matrix autosampler into a single platform system that can be used in the analysis of soil, water, and soils requiring methanol extraction. This “all-in-one” setup has allowed for greatly increased throughput and efficiency through the built in features it ...
Abstract The Massachusetts Department of Environmental Protection (MassDEP) developed the “Method for the Determination of Volatile Petroleum Hydrocarbons (VPH) by Gas Chromatography/ Mass Spectrometry” to measure the collective concentrations of volatile aliphatic and aromatic petroleum hydrocarbons in aqueous and soil/sediment matrices1. The previous method for VPH determination ...
Thermo Fisher offers a comprehensive line of bulk weighing and monitoring products including conveyor scales, automatic sampling systems, weighbelt feeders, tramp metal detection, coal and mineral sampling systems, level indicators and conveyor safety switches. ...
Abstract Purge and trap concentration is a technique that is used for the analysis of Volatile Organic Compounds (VOCs). The major component of any purge and trap system is the analytical trap. This trap is responsible for retaining the VOCs during the purge cycle and then releasing them upon heating and transfer to the GC/MS for separation and detection. While most standard methods define the ...
Abstract Purge and trap concentration is a technique that is used for the analysis of Volatile Organic Compounds (VOCs). The major component of any purge and trap system is the analytical trap. This trap is responsible for retaining the VOCs during the purge cycle and then releasing them upon heating and transfer to the GC/MS for separation and detection. While most standard methods define the ...