Method 537.1 Determination of Selected Per- and Polyfluorinated Alkyl Substances in Drinking Water by Solid-Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) 视频 安装用于 PFAS 应用的 InfinityLab 无 PFC HPLC 转换工具包 ...
产品号/Catalog# 1ST82590-100 CAS#: NA MDL#: NA 产品名称: Product Name: 14 Perfluorocarboxylic acid Mix Solution,100μg/mL 形态/Form: NA 颜色/Color: NA 储藏条件/Storage: NA 运输条件/Transportation: 冰袋运输 附加信息 Additional Information: ...
537 - 1 EPA Document #: EPA/600/R-08/092 METHOD 537. DETERMINATION OF SELECTED PERFLUORINATED ALKYL ACIDS IN DRINKING WATER BY SOLID PHASE EXTRACTION AND LIQUID CHROMATOGRAPHY/TANDEM MASS SPECTROMETRY (LC/MS/MS) Version 1.1 September 2009 J.A. Shoemaker US EPA, Office of Research and Developm...
Demonstration of the Sep-Pak PS2 Cartridge to extract PFAS from drinking water according to EPA method 537.1.Introduction In the United States, many laboratories performing analysis of perfluorinated alkyl substances (PFAS) in drinking water wil...
ORR was compared between treatment arms using the Miettinen and Nurminen method [23] stratified by predominant tumor histology (squamous vs. non-squamous). Based on the number of patients planned to be randomized (N = 148), the study had 81.7% power to detect a 20-percentage point ...
The new method hinges on a cobalt catalyst, which the researchers describe along with the new process in their paper, “Solar-Driven Electrochemical Synthesis of Ammonia using Nitrate with 11% Solar-to-Fuel Efficiency at Ambient Conditions.” ...
Draft guidance issued by the Environmental Protection Agency provides state and local agencies with information on a new method for analyzing particulate matter "hot spots" in their determinations on whether a proposed transportation project, such as a new highway, would conform with the Clean Air ...
Oak Ridge researchers have also tackled the challenge of integrating batteries of varying ages from different manufacturers that have different chemistries, voltages and capacities into a unified and efficient energy storage system. The researchers developed a method that in essence proposes a desired amo...
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Thus, the screening process was simplified, and the efficiency was greatly improved by the method. The strain RBB-5 of higher EPA yield were classified and identified from the morphological, physiological and biochemical characteristics and 18S rRNA sequence analysis and other aspects. The results ...