Chromatography Technology Articles on Environmental XPRT

Chromatography Tips

No.1 Gas Chromatography Tips Our Founders and engineers of the company had accumulated more than 60 years experience in the research and development of HPLC instrumentation; HPLC column technology; mass spectrometer installation, training and services; chemical and biochemical separation, detection and quantification, Proteomics and cancer biomarker research and ...

Oct. 25, 2011

By AcuTech Scientific Inc.

Applications of a Portable Gas Spectrometer

In the realm of natural gas processing, enterprises don’t always find it economical to send products back to the lab and wait for test results. Being able to perform on-the-spot, highly accurate compositional analysis with gas chromatography equipment can reduce operational costs and help companies determine on-the-spot accurate gas levels in a natural gas stream. ...

Apr. 30, 2017

By Envent Engineering Ltd

Chromatography in Sugar Processing

Untitled Document Chromatography is a new process to most sugar technologists, yet it is fast becoming a tool of significance for ...

Sep. 1, 1999

By Calgon Carbon Corporation

Repeatability is King: Up to Tenfold Improvement

Axetris has improved the repeatability specifications of its mass flow meters and controllers. Repeatability often more important than absolute accuracy Repeatability provides information about the precision, that is, the absolute difference between a pair of repeated test results measured by one instrument under unchanged conditions. To measure precision, the same ...

May 4, 2017

By Axetris Ag

The development of cation-exchange chromatography in free amino acids analysis

Although it was not called a liquid chromatograph, the first such instrument was introduced in late 1959 by Beckman Instruments and was designated the M.S. Amino Acid Analyzer in honour of Moore and Stein. Inject valves had yet to be invented, the buffer switching valves were glass stopcocks and the column temperature was controlled by circulating water baths. Two positive displacement pumps ...

Aug. 22, 2007

By Pickering Laboratories, Inc.

Development of a novel odor measurement system using gas chromatography

This paper describes a novel odor measurement system for creating arrays of virtual chemical sensors with nonoverlapping responses using ultrahigh-speed gas chromatography with a surface acoustic wave sensor (GC/SAW). This GC/SAW system provides high-resolution twodimensional olfactory images for easy recognition of many complex odors. Separation and quantification of the individual chemicals ...

Dec. 3, 2008

By Air & Waste Management Association (A&WMA)

Low thermal mass gas chromatography – Analysis at MACH speed

Gas Chromatography (GC and GC/MS) analysis has been the mainstay for the analysis of regulated organic contaminates in the environmental field. Numerous advancements have occurred in GC instrumentation that include improvements for injectors, detectors, automation, software, and GC column choices. Although many advancements have been made in GC technology, very little has changed for column oven ...

Oct. 17, 2007

High-Resolution Ultrahigh-Pressure Long Column Reversed-Phase Liquid Chromatography for Top-down Proteomics

Separation of proteoforms for global intact protein analysis (i.e. top-down proteomics) has lagged well behind what is achievable for peptides in traditional bottom-up proteomic approach and is becoming a true bottle neck for top-down proteomics. Herein, we report use of long (≥1 M) columns containing short alkyl (C1-C4) bonded phases to achieve high-resolution RPLC for separation of ...

Jan. 24, 2017

By Separation Methods Technologies, Inc. (SMT)

Pneumatic Focusing Gas Chromatography: A 3-in-1 Continuous, Automated, Ambient-Fence line-Fugitive Emissions Instrument

This project involved design improvements in both software and hardware, and commercialization of our Pneumatic Focusing Gas Chromatography technology for continuous monitoring of VOCs and Air Toxics and demonstration of its performance in year-long monitoring programs at an EPA Superfund site in Fargo North Dakota and an Oregon Department of Environmental Quality Air Toxics site in Portland ...

Feb. 24, 2010

By VOC Technologies

Determination of Soursop (Annona muricata L. cv. Elita) Fruit Volatiles during Ripening by Electronic Nose and Gas Chromatography Coupled to Mass Spectroscopy

As an exotic highly perishable tropical fruit commercially grown in Colombia, soursop (Annona muricata L.) is currently in need of postharvest handling studies. Thus, the present research was conducted to characterize the volatile compounds of soursop cv. Elita during postharvest. For this purpose, fruit ripeness was evaluated, for one thing, by a volatile compound ...

Sep. 11, 2013

By PCA Technologies SRL

Spiral wound EDI technology part 1

Water purification by reducing the concentration of ionic impurities has been an area of considerable technical interest. Water treatment technologies have rapidly advanced in recent years to where a myriad of options have been developed for this purpose. The most well-known processes include electrodialysis, electrodeionization (EDI), liquid chromatography, membrane filtration, and ion exchange. ...

Jul. 1, 2010

By Agape Water Solutions, Inc.

Degradation and toxicity depletion of RB19 anthraquinone dye in water by ozone-based technologies

This research investigated the discoloration and mineralization of Reactive Blue 19 (RB19) anthraquinone dye by single ozonation, single UV radiation and ozonation jointed with UV radiation (O3/UV). The problem was approached from two points of view: with the objective of color removal or the mineralization of solution. In each case, the optimum operating conditions were different. Ozonation ...

Dec. 5, 2016

By IWA Publishing

Pyrolysis processing of used old tyres by thermal plasma technology

Thermal plasma pyrolysis of used old tyres was studied in a nitrogen plasma reactor in order to evaluate the material and energy recycling potential. The main gaseous products from thermal plasma pyrolysis of used old tyres were identified by chromatography as H2, CO, CH4, C2H2, ...

Jan. 2, 2007

By Inderscience Publishers

Advanced gas detection technology supports arctic greenhouse gas research

Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...

Oct. 6, 2011

By Quantitech Ltd

Advanced Gas Detection Technology supports Arctic Greenhouse Gas Research

Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...

Aug. 12, 2012

By Gasmet Technologies Oy

Infectious Disease Testing Industry : Strategic Assessments for Technologies & Applications of Leading Suppliers Analyzed in Report

ReportsnReports.com adds report Infectious Disease Testing Market 2014: Strategic Assessments of Leading Suppliers to its store.This report provides detailed analyses of current and emerging technologies, and their potential applications for the infectious disease testing market, including molecular diagnostics, biochips, monoclonal antibodies, immunoassays, IT, gel microdroplets, ...

Jan. 27, 2014

By ReportsnReports / SandlerResearch

Reducing Product Manufacturing Costs Through the Use of a Simple and Flexible Moving Bed Process

Untitled Document Traditionally, the chemical engineer can rely on chemical separation methods such as distillation, crystallization, ...

Oct. 24, 2001

By Calgon Carbon Corporation

Rapid Field-Screening of Waste Oil/Solvent Drums with Horizontal ATR / Fast-Screening IR Spectroscopy

While the growth of technology and industry has given us a high standard of living, it has also given us a greater amount of waste products to deal with. A significant portion of the waste is either buried underground or stored in abandoned warehouses. Some of this waste material may be harmless and innocuous, and some may be quite hazardous; but all of it must be tested by some procedure to ...

Jan. 1, 2006

By Buck Scientific Inc

Identification of metabolites produced by Phanerochaete chrysosporium in the presence of amlodipine orotate using metabolomics

Pharmaceuticals are very useful in treating human diseases but they are excreted to the environment sometimes in their original form or as byproducts of human metabolism. Pharmaceuticals and their metabolites have been proven by studies to be harmful to non-target ecological species and may be persistent in different water matrices. In this regard, there is an emergent need to eliminate these ...

Jun. 20, 2015

By IWA Publishing

Estimation of fission gas release in FBTR fuel pins

Fission gas extraction and analysis has been carried out on fuel pins of fast breeder test reactor subassemblies at different burn-ups as a part of post-irradiation examinations to characterise the performance of the unique mixed carbide fuel and estimate the residual life. This paper describes in detail the fission gas extraction and analysis carried out on fuel pins after various stages of ...

Dec. 21, 2006

By Inderscience Publishers

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