Andreas Breidbach  and Wolfgang Brodacz [2,3,4] developed a new GC-MS method using fully 13C isotopelabelled analogues of T-2 toxin and HT-2 toxin that allows for the detection of these toxins at concentrations as low as 2–5 ppb.
Beverages, such as sodas and energy drinks, can include a number of polar ingredients, which are easily soluble in the water matrix of the drinks. These ingredients include sweeteners (sugars and sugar substitutes), caffeine, vitamin supplements, amino acids, organic acids, and plant extracts. Because the analytes are already in solution, there is no need for extensive sample preparation. Dilution followed by direct injection into an HPLC is typically suitable.
In this article we present two beverage applications using Ascentis Express HPLC columns. Ascentis Express columns offer faster HPLC on any system. One benefit is their ability to produce the resolution, efficiency, and speed on conventional HPLC systems that is associated with the use of sub-2 micron columns on a UHPLC system, without generating high backpressure. Column chemistries (RP-Amide and HILIC) were selected for this article based on their enhanced performance with polar compounds in comparison to C18.
Herbicides are used throughout the world to combat the growth of unwanted plant life. These polar compounds are hydrophilic, so they may find their way into drinking water sources.
While gas chromatography has historically been the preferred technique for analysis of herbicides in water samples, the use of LC-MS/MS for this application is gaining acceptance. This is due to the power of MS/MS to provide detailed identification of multiple
analytes, but also in part due to the variety of HPLC stationary phases that are available. In particular, several HPLC phases are available that provide great retention and peak shapes for polar analytes, such as herbicides, even under mostly aqueous mobile phase conditions. The combination of these factors may possibly eliminate need for time-consuming sample preparation.
Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form hydrazones, which are immobilized on the cartridge. These compounds can be easily eluted from the cartridge with acetonitrile and analyzed by HPLC with UV detection. Traditionally, this analysis including the workup contains a series of manual steps, which can become time-consuming and could incur experimental error.
Automating the extraction of LpDNPH S10 cartridges and putting it in-line with the HPLC analysis will significantly reduce manual labor using this technique and this will improve reproducibility of the method by reducing potential experimental errors by the operator. The automation and unattended operation of the method leads to high throughput for determining airborne formaldehyde and acetaldehyde.
An application was developed to demonstrate increased pigment removal for the analysis of pesticides, using Supel™ QuE Z-Sep/C18 QuEChERS and an Ascentis® Express C18 HPLC Column. The improved cleanup can decrease column and instrument fouling, leading to extended LC column lifetime and reduced instrument downtime.
We treat air streams to remove odors allowing industrial processes to be operated in compliance with local regulations and without causing a nuisance to neighbors due to odors and smells.
Our technologies have been applied to a range of processes including:
Waste treatment (municipal and industrial)
Manufacture of flavors
Waste water treatment (Municipal and industrial)
In the fast-changing electronics industry with its need for new materials and products, demand for 100% uptime, smooth production operation, many in clean-room environments, MEGTEC meets and exceeds continuous demand for raising the bar of technology excellence.
MEGTEC works either directly with the end user or through engineering firms or contractor companies, offering tested package systems as required and our end user list includes most of the well-known manufacturing companies around the globe including producers of ceramic condenser/capacitor, thin film FCCL, solar back film, plasma and LCD screen makers in Asia. We have the breadth of technologies in our portfolio and with our strong engineering design capabilities, collaborate from each of our global facilities and can review your application and recommend the best solution.
MEGTEC’s experience and application know-how are at your command for tough drying and web handling applications such as slow-drying coatings and materials or thin film coating and laminating. Dryers can be equipped with a wide variety of nozzle configurations ranging from simple slot nozzles to sophisticated Coanda-style air bars and patented air foil systems. A full range of heat sources are available including steam, direct and indirect gas-fired, thermal oil, electric, hot water and IR. In addition, the air handling systems can be integrated into the dryer enclosure or stand-alone for remote installation.
When the process requires pollution control systems for solvent-based applications, MEGTEC also offers regenerative thermal oxidizers, solvent recovery, distillation and purification systems. MEGTEC also offers waste heat recovery packages to “close the energy loop” between pollution controls and the process, in order to reduce production costs and increase customer profits
Many industrial and pharmaceutical processes generate wastewater with volatile contaminants that increase the COD and BOD to a point where discharging to municipal wastewater is very costly or not an option. These contaminants can be removed from the water by distillation, substantially lowering the disposal cost, and, in many cases, the removed components can be further purified and reused in the process.
MEGTEC offers the following solutions to remove the volatile contaminants and make wastewater suitable for discharge to most municipal wastewater treatment plants:
Stripping columns using direct steam or a reboiler
Distillation columns using indirect steam heat sources
Our technologies have been applied to a range of processes including wastewater treatment from industries such as Pharmaceutical, Semiconductor, Chemical and Petrochemical.
Industrial waste water treatment is a complex area. With Primozone you get at complete partner who can customize an ozone water treatment solution for you. Our ozone generators and ozone water treatment systems are robust and maintenance free. The modular design allows for stepwise upgrades. As a partner we can provide a complete system design or stand alone ozone generator sales. We have mobile pilot test equipment and are happy to do pilot tests to get the perfect solution. We can adapt our solutions to fit yours.
We can treat the air streams from waste management plants, MBT (Mechanical Biological Treatment) reception and composting areas, Waste Water Treatment Plants (WWTP), Refuse Derived Fuel (RDF) Plants, gasification of waste, syngas, torrefaction, gas engines and biogas upgrading.
In waste management plants and WWTP, we remove the odors that may be causing a nuisance to neighbors, with bioreactors using Biomass to degrade odorous components and where odors are particularly intractable or VOC emissions higher, thermal oxidizers to meet prescribed emission limits and odor levels.
In RDF Plants, Syngas, Gasification, Gas Engine and Biogas Upgrading applications, we employ thermal oxidizers, particulate removal and DeNOX systems, for the control of VOC, NOx, CO and particulates to prescribed emission limits.
MEGTEC is actively involved in providing Power Generation solutions for many applications ranging from utilizing process heat recovery systems to utilization with boilers, to recovering and utilizing Ventilation Air Methane (VAM) from coal mines.
MEGTEC has developed VAM processing technologies for either abatement only and in combination with energy recovery and utilization. MEGTEC’s proven technologies are destroying methane while generating high quality carbon credits, electricity for coal mines and heating for local communities and facilities.