Method 3550c
http://www.grgt-hb.com/Products-23645226.html Web1 mrt. 2024 · Extraction of PAHs present in fly ash samples was done by ultrasonication method and was identified with GC-FID (gas chromatography-flame ionization detector). ... USEPA (2007) Method 3550C, ...
Method 3550c
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Web5 sep. 2006 · 以下是本人收集的美国EPA方法的中文版，已转移到资料中心，需要可以去下载。. 3600净化. 3610氧化铝柱净化. 3611氧化铝柱净化和分离石油废物. 3620硅酸镁载体柱净化. 3630硅胶净化. 8000 气相色谱 法. 8015非卤代挥发性有机物. 8020芳香族挥发性有机物. WebThe method shown in this video illustrates the basic principles contained in EPA method 3550C, which describes ultrasonic extraction of semivolatiles and nonvolatiles from solids. 1 EPA method 3550C is one of the extraction methods referenced in EPA method 8081B, which describes GC analysis of organochlorine pesticides. 2 Most of the EPA ...
Web25 sep. 2012 · Work related to the screening of organic pollutants in sludge produced by the automotive industry could not be found in the literature—even work using standardized methods for qualitative screening, such as EPA 3540C and 3550C, which use Soxhlet and sonication extractions, respectively (USEPA 1996, 2007), for subsequent GC/qMS analysis. Web1 sep. 2011 · EPA 3550C The PAHs were extracted by adding 15 mL hexane/acetone (4:1) and 3 minutes sonication (repeating this procedure three times). The extracts were combined and centrifuged at 4,000 rpm for 5 minutes. The samples were concentrated and exchanged to acetonitrile with a rotary evaporator to 5 mL total volume and analyzed …
WebMETHOD 3500B ORGANIC EXTRACTION AND SAMPLE PREPARATION 1.0 SCOPE AND APPLICATION 1.1 Method 3500 provides general guidance on the selection of … Web6 mrt. 2024 · 当使用的仪器条件为 2 分钟和 1kg的蒸馏水时 (25℃时比热容为 0.9997 cal -1 -1 g ℃ ),校正公式简化为: P=34.86ΔT 备注:稳定的电压对于准确的、可再现的校正和操作是 …
Web3 feb. 2016 · SW-846 Test Method 3550C: Ultrasonic Extraction This document outlines the procedure for extracting nonvolatile and semi volatile organic compounds from solids such as soils, sludges, and wastes. You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.
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