Epa Method Articles on Environmental XPRT

Modeling for NAAQS Part 1: How to select the appropriate output for NO2

The U.S. National Ambient Air Quality Standards (NAAQS) for 1-hour SO2, 1-hour NO2, and 24-hour PM2.5 use a very particular format. It is very important for all modelers (both within and outside of the U.S.) to understand how AERMOD handles this. In particular, U.S. users need to be familiar with the ...

Jun. 14, 2017

By BREEZE Software, Data and Services / Trinity Consultants

On PM 2.5 Filters, Let’s just clear the air between us; ok?

In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community. In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple. Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for ...

Jun. 13, 2017

By Sterlitech Corporation

EPA Speeds Alternative Method Approvals

As anyone in the water business will tell you, standard analytical methods are critically important. On April 10, 2007, the EPA announced its intent to implement an expedited process for approving alternative analytical testing methods under various federal water programs. Background Under the Safe Drinking Water Act (SDWA), EPA promulgates national primary drinking water regulations ...

Jun. 1, 2007

By Bergeson & Campbell, P.C.

US EPA Method 8270 Semivolatiles on the Equity-5

US EPA Method 8270 describes the analysis of a wide variety of semivolatile compounds by GC/MS. In this application, the Equity-5 was used to analyze 74 compounds commonly targeted for analysis by environmental laboratories. The analysis also included 6 internal standards and 8 surrogates. The Equity column showed excellent peak shape and response for both basic and acidic compounds, including ...

Jan. 17, 2012

By MilliporeSigma

Microwave digestion – EPA method 3052 on the Multiwave 3000

Microwave sample preparation provides an efficient and clean sample preparation for multi-element analytical techniques such as ICP-OES and ICP-MS. As Microwave assisted digestion has evolved, so have the methodologies. EPA method 3052 is designed for the “total” analysis in a variety of matrices including soil, sediments, sludge, oils, biological and botanical materials. This method ...

Oct. 29, 2011

By PerkinElmer, Inc.

Trace Analysis of PAHs using EPA methods 3541, 3545 and 8100

The Extraction System B-811 and the Syncore Analyst parallel concentrator from Buchi as well as the Pressurized Solvent Extractor from Applied Separations were evaluated for the pretreatment of samples containing PAHs. Recoveries of extraction and subsequent concentration using acetone-n-hexane (1+1) were 70-95% for 2 ring and 90-100% for less volatile 3-5 ring PAHs. A good precision (95% ...

Mar. 31, 2008

By BÜCHI Labortechnik AG

EPA Method 6200 and Field Portable X-ray Fluorescence Safety

Overview: These training notes provide a brief introduction to x-ray fluorescence (XRF) analysis of soils. XRF has been used to characterize a broad range of materials for over twenty years. Recent advances in digital electronics and semi-conductor technology has yielded very portable XRF analyzers for field analysis of many sample types including soils. These notes will cover the following ...

Jan. 1, 1998

By Thermo Scientific Niton Analyzers

US EPA Method 625 Semivolatiles by GC-MS on the Supelco SLB™-5ms

Application Report 473: US EPA Method 625 describes the procedure for the analysis of industrial and municipal waste water samples by GC-MS. This analysis illustrates the separation of the single-peak base-neutral and acid compounds listed in the method, along with commonly used surrogates and internal standards. ...

May 11, 2012

By MilliporeSigma

Increased sample throughput for ICP-OES applied to U.S. EPA method 200.7

The application of an SC-FAST sample introduction system to the analysis of natural and certified water samples is described. The SC-FAST system consists of an autosampler, sample loop, switching valve, high efficiency nebulizer and a glass cyclonic spray chamber to perform analysis by direct nebulization. The potential benefits of this introduction system are numerous and include: increased ...

Oct. 28, 2009

By PerkinElmer, Inc.

Action Plan for Japanese Method Implementation in EPA Covasna County

In Romania there are 41 administrative units named “Judeţ,e” i.e. “counties”. In each of them, there are an Environment Protection Agency, destined to apply the State Environmental Policy, an other EPA works for environmental problems of the Bucharest, and finally, an special EPA is designed to manage “The Biosphere Reservation of the Danube Delta” (declared by UNESCO in 1990). Covasna ...

Apr. 18, 2007

Increased sample throughput for ICP-OES applied to U.S. EPA method 200.7

The application of an SC-FAST sample introduction system to the analysis of natural and certified water samples is described. The SC-FAST system consists of an autosampler, sample loop, switching valve, high efficiency nebulizer and a glass cyclonic spray chamber to perform analysis by direct nebulization. The potential benefits of this introduction system are numerous and include: increased ...

Oct. 28, 2011

By PerkinElmer, Inc.

EPA - 40 CFR Part 51, Appendix M - Test Method 205

DEPARTMENT OF ENVIRONMENTAL PROTECTION (DEP) 40 CFR PART 51 ...

Jun. 28, 2007

By Environics, Inc.

Quantitative LC-MS/MS Analysis of Microcystin Cyclopeptides: EPA Method 544

Accurate and sensitive characterization and quantification of a structurally diverse class of microcystin cyclopeptides was accomplished using UHPLC-MS-MS. In this analysis, microcystins-RR, YR, and LR were measured using a Nexera UHPLC with a LCMS-8050 triple quadrupole MS detector with ESI ionization in accordance with EPA Method 544. The results of this study ...

May 1, 2015

By Shimadzu Scientific Instruments Inc

US EPA Method 525.2 Semivolatiles by GC-MS on the Supelco SLB™-5ms

US EPA Method 525.2 describes the procedure for the extraction and analysis of semivolatile organic compounds from drinking and source water. The compound list includes polynuclear aromatics, phthalates, pesticides, and polychlorinated biphenyls. This application illustrates the separation of a majority of the single peak analytes listed in this method, using a SLB-5ms, 30 m x 0.25 mm I.D., ...

Dec. 31, 2008

By MilliporeSigma

Increased laboratory productivity for ICPOES applied to U.S. EPA method 6010C

The use of an ESI SC FAST autosampler coupled to a Perkin Elmer Optima 7300 DV ICP can dramatically improve productivity for the analysis of environmental samples using EPA SW-846 Method 6010C. Sample throughput, as determined by sample-to-sample run time can be improved by as much as 100% as compared to traditional sample introduction systems and autosampler configurations. Both sample analysis ...

Oct. 29, 2011

By PerkinElmer, Inc.

Increased laboratory productivity for ICPOES applied to U.S. EPA method 6010C

The use of an ESI SC FAST autosampler coupled to a Perkin Elmer Optima 7300 DV ICP can dramatically improve productivity for the analysis of environmental samples using EPA SW-846 Method 6010C. Sample throughput, as determined by sample-to-sample run time can be improved by as much as 100% as compared to traditional sample introduction systems and autosampler configurations. Both sample analysis ...

Oct. 28, 2009

By PerkinElmer, Inc.

Analysis of US EPA Method 8270D Semivolatiles Using SLB-5ms

Application Report 391 US EPA Method 8270D specifies a procedure for the determination of semivolatiles in solid wastes and ground waters. The suitability of the SLB-5ms for the separation of 72 analytes (plus eight surrogates and six internal standards) specified in the method is demonstrated. The optimized chromatogram obtained on the SLB-5ms is presented. ...

Nov. 5, 2012

By MilliporeSigma

EPA Proposes Two Test Methods and Guidance for Evaluating Antimicrobial Pesticides

The U.S. Environmental Protection Agency (EPA) has recently announced the availability of two proposed test methods and associated testing guidance for evaluating antimicrobial pesticides against two biofilm bacteria, Pseudomonas aeruginosa and Staphylococcus aureus, for comments. EPA states that registrants of antimicrobial products with public health claims are “required to submit ...

Nov. 7, 2016

By Bergeson & Campbell, P.C.

U.S. EPA approves first enzymatic method for SDWA reporting of nitrate

The US Environmental Protection Agency periodically updates methods laboratories can use for protecting the quality of the nation's drinking water. The Safe Drinking Water Act office of the EPA published its list of Alternate Test Protocols (ATP) in the Federal Register in July 2016. ...

Sep. 14, 2016

By NECi Superior Enzymes

US EPA Method 515 Chlorinated Acids on Equity-1701

The potential health effects associated with many chlorinated acid herbicides has led to regulations regarding their use. US EPA method 515 describes the GC/ECD analysis of these compounds as their methyl ester derivatives in ground and drinking water, and lists a 1701-type capillary for use as a secondary column. In this application, 15 out of the 16 herbicides listed in method 515 were resolved ...

Jan. 17, 2012

By MilliporeSigma

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