summary statistics for organic chemical concentrations in streambed sediment samples salem area oregon 1999 continued
Selected Elements and Organic Chemicals in Streambed Sediment in the Salem Area, Oregon, 1999 pot
... Guidelines for elements in streambed sediments 12 Table Guidelines for organic chemicals in streambed sediments 13 Table Summary statistics for element concentrations in streambed ... Chemicals in Streambed Sediment Samples, Salem area, Oregon, 1999 .29 Appendix B Streambed Sediment Data Streambed Sediment Quality Assurance Data, Salem area, Oregon, 1999 ... Table Summary statistics for element concentrations in streambed sediment samples, Salem area, Oregon, 1999 [Concentrations of major elements in milligrams per gram (mg/g); minor elements in micrograms...
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Tài liệu METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER ppt
... other concentrations should correspond to the expected range of concentrations found in real samples or should define the working range of the detector 7.2.2 Using injections of 5-25 µL for HPLC ... other concentrations should correspond to the expected range of concentrations found in real samples or should define the working range of the detector 7.3.2 Using injections of 5-25 µL for HPLC ... check samples according to the method beginning in Section 10 8.2.4 Calculate the average recovery ( ) in µg/L, and the standard deviation of the recovery (s) in µg/L, for each parameter using...
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Tài liệu METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER doc
... be helpful in resolving the compounds of interest from the interferences that may occur Interferences 3.1 Impurities in the purge gas and organic compound outgassing from the plumbing of the ... may also be prepared by boiling water for 15 minutes Subsequently, while maintaining the temperature at 90°C, bubble a contaminant-free inert gas through the water for one hour While still hot, ... concentration levels for each parameter of interest as described in Section 7.3.1 7.4.2 Prepare a spiking solution containing each of the internal standards using the procedures described in Sections...
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Tài liệu Organic chemical contaminants in Biosolids docx
... determining appropriate limits for dioxins in biosolids (US EPA 2003) EPA considered the potential for increased cancer risk from dioxins for those that eat a majority of their food (including ... limits for such chemicals will be discussed next For newer organic chemicals of concern, including pharmaceutical compounds and things like detergents and shampoos, research is just beginning The ... Trichloroethylene Limiting pathway (ppm) adult eating animal products child eating biosolids child eating biosolids adult eating fish/drinking water adult eating animal products adult eating animal products...
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Tài liệu PATHWAYS OF ORGANIC CHEMICAL CONTAMINATION IN ECOSYSTEMS pdf
... ecosystems in most parts of the world Research in this area is beginning to gain some importance on the American continent, and has been receiving attention in Europe It is an area that requires investigation ... continue to manufacture them for use in less industrialized nations where such chemicals may still be used due to lack of education or conflicting economic and health interests For example, in ... physico -chemical parameters of the environment as discussed in a following section The notion of persistence must also take into account the chemical s inherent properties A chemical that may be mineralized...
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APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER pot
... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method A reference file of material data handling sheets ... may also be prepared by boiling water for 15 minutes Subsequently, while maintaining the temperature at 90°C, bubble a contaminant-free inert gas through the water for one hour While still hot, ... according to the method beginning in Section 10 8.2.4 Calculate the average recovery ( ) in µg/L, and the standard deviation of the recovery (s) in µg/L, for each parameter of interest using the...
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APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER: METHOD 604—PHENOLS docx
... employed for samples having high general organic and organic base interferences 2.3 The method also provides for a derivatization and column chromatography cleanup procedure to aid in the elimination ... check samples according to the method beginning in Section 10 8.2.4 Calculate the average recovery in µg/L, and the standard deviation of the recovery (s) in µg/L, for each parameter using the ... Practices for Preparation of Sample Containers and for Preservation of Organic Constituents,” American Society for Testing and Materials, Philadelphia “Carcinogens-Working With Carcinogens,”...
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APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER: METHOD 605—BENZIDINES pdf
... Exposure to chloroform should be minimized by performing all extractions and extract concentrations in a hood or other well-ventilated area Apparatus and Materials 5.1 Sampling equipment, for discrete ... 1) and the other concentrations should correspond to the expected range of concentrations found in real samples or should define the working range of the detector Using syringe injections of 5-25 ... and the other concentrations should correspond to the expected range of concentrations found in real samples or should define the working range of the detector 7.3.2 Using syringe injections of...
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APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER: METHOD 611—HALOETHERS potx
... check samples according to the method beginning in Section 10 8.2.4 Calculate the average recovery ( ) in µg/L, and the standard deviation of the recovery (s) in µg/L, for each parameter using ... by shaking the funnel for two minutes with periodic venting to release excess pressure Allow the organic layer to separate from the water phase for a minimum of 10 minutes If the emulsion interface ... dried before use to minimize contamination Automatic sampler (optional)—The sampler must incorporate glass sample containers for the collection of a minimum of 250 mL of sample Sample containers...
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ALDEHYDE AND OTHER VOLATILE ORGANIC CHEMICAL EMISSIONS IN FOUR FEMA TEMPORARY HOUSING UNITS – FINAL REPORT pdf
... vinyl textured white vinyl finish with finish with unfinished veneer unfinished veneer backing backing vinyl laminant with vinyl laminant with unfinished veneer unfinished veneer backing backing ... Preparation for indoor sampling in a THU Half inch holes were drilled into the THU door for insertion of ¼” stainless steel sampling tubes A sampling tube and sample pump are seen in the foreground ... vinyl material for back (vinyl not tested) unfinished Fabric with vinyl material for back (vinyl not tested) unfinished Cavalier textured white vinyl finish with unfinished veneer backing vinyl...
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APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER: METHOD 607—NITROSAMINES docx
... identified10-12 for the information of the analyst 4.2 These nitrosamines are known carcinogens13-17, therefore, utmost care must be exercised in the handling of these materials Nitrosamine reference ... rinsing with the last solvent used in it Solvent rinsing should be followed by detergent washing with hot water, and rinses with tap water and distilled water The glassware should then be drained ... N-Nitrosodiphenylamine is reported6-9 to undergo transnitrosation reactions Care must be exercised in the heating or concentrating of solutions containing this compound in the presence of reactive amines 3.4...
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NOMENCLATURE FOR ORGANIC CHEMICAL TRANSFORMATIONS docx
... showing the involvement of oxygen atoms in the ring opening process 761 Nomenclature for organic chemical transformations 8.5.3 Ring opening transformations involving bond breaking a t t w o independent ... intramolecular transformations (Figure 8.1) the ring size is given as a single number In transformations in which two rings open to form a single larger ring, or in the reverse ring closings, one ring size ... transformations 7.1 Insertion transformations 7.2 Extrusion transformations 752 Rules for ring closing and ring opening transformations 8.1 General information 8.2 Intmolecular cyclisation transformations...
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METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER doc
... accessories including syringes, analytical columns, and gases The injection port must be designed for on-column injection when using packed columns and for splitless injection when using capillary ... phosphine) is injected through the GC inlet 5.6.5 GC/MS interface—Any GC to MS interface that gives acceptable calibration points at 50 ng per injection for each of the parameters of interest ... check samples according to the method beginning in Section 10 or 11 8.2.4 Calculate the average recovery ( ) in µg/L, and the standard deviation of the recovery (s) in µg/L, for each parameter using...
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APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER ppt
... substituted for the muffle furnace heating Thorough rinsing with such solvents usually eliminates PCB interference Volumetric ware should not be heated in a muffle furnace After drying and cooling, ... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method A reference file of material data handling sheets ... and a lab hood adequate for radioactive work 4.3.1.2 Training—Workers must be trained in the proper method of removing contaminated gloves and clothing without contacting the exterior surfaces...
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báo cáo khoa học: " Using a summary measure for multiple quality indicators in primary care: the Summary QUality InDex (SQUID)" ppt
... preferable [4] For example, during quality improvement (QI) projects involving multiple process and/or outcome measures within multiple clinical domains, efforts to improve quality in one area may ... decline in quality in another area In such circumstances, a summary measure may provide clinicians and researchers with a better sense of whether their efforts (or lack thereof) result in net increases ... Mammogram Td vaccine Flu vaccine Pneumococcal vaccine Hep A vaccines (n> = 2) Chlamydia screening Depression screening Alcohol screening Alcohol counseling Tobacco counseling Diagnosing HTN Blood...
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Báo cáo y học: "A statistical approach for detecting genomic aberrations in heterogeneous tumor samples from single nucleotide polymorphism genotyping data" pot
... Specialist Training Fellowship in Biomedical Informatics (Reference No G0701810) and previously by a UK Engineering and Physical Sciences Research Council Life Sciences Interface Doctoral Training Studentship ... genotyping data [25] Model comparison In order to demonstrate the utility of integrating both normal DNA contamination and LRR baseline correction within a single analysis model; we examined SNP ... a continuous to a discrete distribution (for example Poisson or Negative-Binomial) Alternatively, the existing data model can be maintained and the read counts transformed into near-continuous...
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USEPA REGION 9 TECHNICAL GUIDELINES FOR ACCURATELY DETERMINING VOLATILE ORGANIC COMPOUND (VOC) CONCENTRATIONS IN SOIL AND SOLID MATRICES potx
... These guidelines address methods for: (1) handling of samples as intact soil cores; (2) preserving samples; (3) storing samples in hermetically sealed containers; and (4) minimizing analyte losses ... Technical Guidelines for Accurately Determining Volatile Organic Compound Concentration in Soil and Solid Matrices 1.0 SUMMARY These guidelines address methods for: (1) handling of samples as intact soil ... unacceptable for decision making (e.g., in excavated soils and when determining disposal or treatment options, or for determining concentrations of VOCs that have a high affinity for the soil...
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Different physical and chemical pretreatments of wheat straw for enhanced biobutanol production in simultaneous saccharification and fermentation
... Chumangalah Thirmal achieved a B.A.Sc degree in Chemical Engineering in 2007 from University of Waterloo Also received a M.A.Sc degree in Chemical Engineering in 2010 from Ryerson University Master's ... Ryerson University, both in Canada He has worked for several years in the health care industry, mainly in the field of developing and testing of novel wound dressing materials for chronic wounds He ... involved in developing new types of bioreactors that are mainly tested for fermentations and other biotechnology industries His special research focus and interest is designing and synthesizing...
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Tài liệu DEVELOPING LOCAL MARKETING INITIATIVES FOR ORGANIC PRODUCTS IN ASIA pptx
... a local market for organic agricultural products Organiconepal supports farmers/producers in converting to organic agriculture by providing organic inputs, training and transferring technologies ... Table 4: Information on margins and other price information from the different case studies Organisation Agri-Bio, Singapore Hanoi Organics, Vietnam Keystone, India Nanjing Planck, China Organic ... farmers should gain self-confidence for making their small units viable using organic inputs and practices This requires intensive education, training and motivational activities Training of women...
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Tài liệu Investigation of Organic Chemicals Potentially Responsible for Mortality and Intersex in Fish of the North Fork of the Shenandoah River, Virginia, during Spring of 2007 ppt
... Investigation of Organic Chemicals in the North Fork of the Shenandoah River, Virginia, Spring 2007 dichloromethane and 200 μL of percent methoxyamineHCl in pyridine The samples were sealed in capped ... data indicate that many chemicals of interest remain in the linear phase of sampling for at least 56 days (Alvarez and others, 2004, 2007); therefore, the use of a linear uptake model (eq 1) for ... 14 Investigation of Organic Chemicals in the North Fork of the Shenandoah River, Virginia, Spring 2007 Table 4. Identification of select waste-indicator chemicals measured by polar organic chemical...
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