Chromatography Laboratory 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.

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.

Webinar Recap: “Developing, Testing, and Troubleshooting Chromatography Method Transfer”

Hi, I’m Tom Wheat, Principal Scientist at Waters, and I recently hosted a webinar entitled, “Developing, Testing and Troubleshooting Chromatography Method Transfer.” Over the course of the webinar, we discussed the transfer of chromatographic methods that occurs at many stages in the development and production of a product. In its simplest form, the method is moved from one ...

Feb. 1, 2017

By Waters Corporation

BTEX monitor, equal performances to laboratory chromatographs

Environnement S.A leveraged its technical leadership in this field with an extensive experience, being one of the first companies creating its first BTEX analyser almost 20 years ago. The VOC72M third generation of ...

Jul. 24, 2014

By Environnement S.A

Sitelab gains laboratory certification with New Jersey DEP

Located in New Jersey? Use UVF instead of Gas Chromatography to save time and money on your next project! The New Jersey Department of Environmental Protection is the first state regulatory agency in the country to approve and certify the use of field analytical methods as part of their "Triad Approach," without compromising data quality and reliability. Using UVF for ...

Apr. 11, 2013

By Sitelab Corporation

Using anion chromatography–pulsed amperometry to measure amino compounds in dairy manure-amended soils

Amino acids and amino sugars comprise the bulk of soil N, so information on their chemical forms and cycling patterns should enable better understanding of soil N cycling. In this study of soil samples that had received animal manure, we evaluated the capabilities of a recently developed analysis for soil amino compounds (19 amino acids, two amino sugars) that consists of methanesulfonic acid ...

Sep. 30, 2008

By Soil Science Society of America (SSSA)

Feasibility of Soil Dust Source Apportionment by the Pyrolysis-Gas Chromatography/Mass Spectrometry Method

This study tested the feasibility of using pyrolysis (Py)-gas chromatography (GC)/mass spectrometry (MS) to obtain organic chemical species data suitable for source apportionment modeling of soil-derived coarse particulate matter (PM10) dust on ambient filters. A laboratory resuspension apparatus was used with known soils to generate simulated receptor filter samples loaded with #1;0.4 mg of PM10 ...

Sep. 8, 2006

By Air & Waste Management Association (A&WMA)

Determination of hemoglobin adduct of a musk xylene metabolite in trout as biomarker of exposure by gas chromatography mass spectrometry

Musk xylene (MX) is frequently used as fragrances in formulation of personal care products. Quantification of a bound 4-amino-MX(4-AMX) as cysteine adducts in trout hemoglobin (Hb) was made by gas chromatography-ion trap-mass spectrometry (GC/MS). The Hb samples were collected from trout after 24 h exposure to MX at 10µg/g, and or menhaden oil (control). The formation of cysteine-Hb adduct was ...

Feb. 28, 2007

By IOS Press

Comparative applications of bioreactor and shake-flask systems in the laboratory treatment of oily sludge

This study investigates the remediation efficiencies of a locally fabricated bioreactor system and a shake-flask system, using samples of oily sludge with varying concentrations of NPK fertiliser. Hydrocarbon removal efficiency of 46% and 24.2% was recorded for the stirred slurries containing 15- and 0-g NPK, respectively, in the bioreactor; whereas values of 40.1%, 33.2% and 18.9%, respectively, ...

Oct. 18, 2006

By Inderscience Publishers

Materials Testing Laboratory Provides Cutting Edge Contamination Testing Solutions

Many industries have extremely tight parameters for any contamination of parts that are used in their manufacturing process. Testing for contamination and quality control is an integral part of these companies’ final products. At EMSL Analytical, the Materials Testing Laboratory has extensive experience in providing highly detailed analytical services to assist manufacturers in ...

Jan. 9, 2012

By EMSL Analytical, Inc.

METH: THE NEW MOLD - New Markets in Clandestine Laboratory Clean-up

Untitled Document Intro Clandestine labs have become prevalent across America. They are used for the ...

Jan. 1, 2004

By EMSL Analytical, Inc.

Expert Perspectives on Optimizing Processes in the Laboratory – An Interview with Peter Boogaard

With nearly 40 years of experience working in Life Sciences and laboratory automation systems Peter Boogaard has seen amazing improvements in optimizing business processes in the laboratory. Starting in the early 1980’s, Peter worked for PerkinElmer on new product lines associated with CAChe (Computer-aided chemistry). These new CAChe products were LIMS and chromatography data handling ...

Dec. 23, 2015

By Poplar Solutions, LLC

Mass Spectrometry Makes Cents for UC San Diego Clinical Laboratory

“Fast is fine; but accuracy is everything.” The quote is attributed to the famous Wyatt Earp, a sharpshooter and lawman who, with help from his two brothers, sent three outlaws to their graves in the Gunfight at the O.K. Corral in Tombstone, Arizona in 1881. One hundred ...

May 2, 2016

By Waters Corporation

The productive environmental laboratory: BSK Labs boosts efficiency with Metrohm IC

BSK Labs runs a number of environmental laboratories and service centers along the west coast of the US. A total of 70 employees – including microbiologists, chemists, lab technicians, and support staff – make sure that the 200 to 350 samples that come in every week are analyzed. BSK Labs specializes in potable water chemistry, ground water monitoring, storm water runoff, solid waste ...

Nov. 16, 2016

By Metrohm AG

Laboratory Study of Conventional Alum Treatment versus MIEX® Treatment for Removal of Natural Organic Matter

EXECUTIVE SUMMARY In recent years, considerable effort has been made in drinking water treatment research to develop methods with improved natural organic matter (NOM) removal from water. Reduction in the level of NOM before disinfection can minimise the formation of disinfection by-products and reduce the residual required to control bacterial regrowth in the distribution system. This ...

Jan. 1, 2001

By IXOM Watercare

Thermo Scientific connects at GPSG Brazil delivers enterprise-level productivity linking laboratories to ERP - case study

The Global Pharmaceutical Supply Group (GPSG) Brazil is an APILA unit of Janssen-Cilag Farmacêutica Ltda., (www.janssen-cilag.com.br) located in São Paulo, Brazil. Janssen-Cilag is one of the world’s leading research-based pharmaceutical companies specializing in pain management and fungal disease. Janssen-Cilag is a member of the Johnson & Johnson family of companies; the ...

Dec. 16, 2015

By Thermo Fisher Scientific, LIMS & Laboratory Software

Odour reduction strategies for biosolids produced from a Western Australian wastewater treatment plant: results from Phase I laboratory trials

This study investigated sources of odours from biosolids produced from a Western Australian wastewater treatment plant and examined possible strategies for odour reduction, specifically chemical additions and reduction of centrifuge speed on a laboratory scale. To identify the odorous compounds and assess the effectiveness of the odour reduction measures trialled in this study, headspace ...

Dec. 19, 2013

By IWA Publishing

Inter-laboratory validation of automated SPME-GC/MS for determination of pesticides in surface and ground water samples: sensitive and green alternative to liquid–liquid extraction

An automated solid-phase microextraction gas chromatography/mass spectometry (SPME-GC/MS) method was developed for the determination of semi-volatile pesticides from several classes with a wide range of polarities in an environmental matrix, and validated according to the rigorous standards of a large commercial laboratory reporting data requiring regulatory acceptance with the purpose of ...

Jul. 20, 2016

By IWA Publishing

Scottish Company Peak Scientific offer solutions to the world helium shortage

Recent international studies have confirmed that the world will run out of helium gas in 25 years if current usage remains unchecked. As well as concerns for the future the gases scarcity has seen its price rise by 70% in recent years. Used in a multitude of applications such as cryogenic applications, purging/pressuring, welding cover gas and controlled atmosphere testing, demand for helium gas ...

Feb. 7, 2013

By Peak Scientific Instruments Ltd

Software solution for standard and Highly sophisticated GPC systems case study

Today's analytical laboratories require universal, flexible and open software solutions to cope with the ever changing needs. This report illustrates how these requirements for chromatographic data processing software can be met in different types of laboratories. Acquisition and Processing of Chromatography Data In former times an analytical chemist spent most of the time with ...

Sep. 25, 2014

By Polymer Standards Service GmbH (PSS)

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