Download or read book On site Method for Measuring Nitroaromatic and Nitramine Explosives in Soil and Groundwater Using GC NPD written by Alan Dole Hewitt and published by . This book was released on 1999 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preservation of Water Samples Containing Nitroaromatics and Nitramines written by and published by DIANE Publishing. This book was released on with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Report written by and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preservation of Water Samples Containing Nitroaromatics and Nitramines written by and published by . This book was released on 1995 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicological Profile for HMX written by and published by . This book was released on 1997 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1994-08 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Nitroaromatic Nitramine and Nitrate Ester Explosives in Water Using SPE and GC ECD Comparison with HPLC written by Marianne E. Walsh and published by . This book was released on 1998 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analytical method for the determination of nitroaromatic, nitramine, and nitrate ester explosives and Co-contaminants in water was developed based on SPE (solid-phase extraction) and GC-ECD (gas chromatograph-electron capture detector). Water samples are preconcentrated using either cartridge or membrane SPE followed by elution with acetonitrile. The acetonitrile extract is compatible with both liquid and gas chromatography, thereby allowing direct comparison of concentration estimates obtained by different methods of determination. Quantitative GC analyses were obtained by using deactivated direct-injection-port liners, short wide-bore capillary columns. and high linear carrier gas velocities. Recoveries from spiked samples were 90% or greater for each of the nitroaromatics and nitrate esters, and greater than 70% for nitramines and amino-nitrotoluenes. Estimates of analyte concentrations in well-water extracts from military sites in the United States and Canada analyzed by GC-ECD and the standard HPLC (high performance liquid chromatography) method showed good agreement for the analytes most frequently detected (HMX octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine, RDX hexahydro-1,3,5-trinitro-1,3,5-triazine, TNT 2,4,6-trinitrotoluene, and TNB 1,3,5-trinitrobenzene). The GC method provides lower method detection limits for most analytes than HPLC, but accurate calibration is more difficult. The ultraviolet (UV) detector used for the HPLC analysis has much greater linear range than the ECD used for GC analysis. In addition. the GC instrumentation requires more care than the LC. Specifically the injection port liner must be changed frequently to maintain accurate determination of the nitramines. Because the sample preparation technique yields extracts that are compatible with both GC and HPLC analysis, confirmation of analyte presence can be obtained based on different physical properties.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1995 with total page 1742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Download or read book Bibliography on Cold Regions Science and Technology written by and published by . This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Monitoring and Hazardous Waste Site Remediation written by Tuan Vo-Dinh and published by . This book was released on 1995 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nouvelles Acquisitions written by Institute for Research in Construction (Canada). Information Service and published by . This book was released on 1992 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impacts of Social Reforms on Urbanization and Planning in China written by C. Hua and published by . This book was released on 1994 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Immunochemical Technology for Environmental Applications written by Diana S. Aga and published by . This book was released on 1997 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the principles and practice of environmental immunoassays for novices in immunochemical techniques. Describes the development and optimization of immunoassays for pesticides, metals, explosives, chemical warfare agents, and industrial contaminants. Includes applications of immunoasssays to the analysis of soil, surface water, and ground water and illustrates the reliability of these techniques. Highlights novel formats of immunoassays such as immunosensors, immunoaffinity techniques, multi-residue assays, immunofluorescent detection systems, and flow-injection immunoassays.

Download or read book Agrindex written by and published by . This book was released on 1995 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: