Environmental Sampling and Analysis for Metals - Chapter 8 docx

... LLC 122 Environmental Sampling and Analysis for Metals 8. 2.3 REAGENTS 8. 2.3.1 Air The air used should be cleaned and dried through a suitable filter to remove oil, water, and other for- eign substances. ... standards before dilution with calcium solution; and Cr based on original standards before addition of H 2 O 2 . See methodologies for determining these metals...

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... amine N-nitrosodi-n-propyl amine Nitroaromatics Nitrobenzene 2,4-Dinitrotoluene 2,6-Dinitrotoluene Phenols 2,4-Dimeethylphenol Nitrophenols 2-Nitrophenol 4-Nitrophenol 2,4-Dinitrophenol 4,6-Dinitro- o-cresol Chlorophenols 2-Chlorophenol 4-Chloro-m-cresol 2,4-Dichlorophenol 2,4,6-Trichlorophenol Pentachlorophenol 2,3,7 , 8- Tetrachlorodibenzol-p-dioxin ... amine Nitroaromatics Nitrobenzene 2,4...

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... Press LLC 110 Environmental Sampling and Analysis for Metals digestion or another method is used for sample preparation (see Chapter 15), carry standards through the same procedure used for samples. The ... Add 2 ml of this stock solution to each 100-ml standard and sample prior to analysis. © 2002 by CRC Press LLC 120 Environmental Sampling and Analysis for M...

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... hydroxide precipitates and set- tles to form rust on the surface of the iron. © 2002 by CRC Press LLC 34 Environmental Sampling and Analysis for Metals Inadequate iron intake causes iron-deficiency anemia, ... Silver has FIGURE 2.4 Formula of vitamin B 12 . © 2002 by CRC Press LLC 16 Environmental Sampling and Analysis for Metals alkaline earth metal is less reactive...

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... Learning. Fax 80 0 73 0-2 215.) © 2002 by CRC Press LLC 46 Environmental Sampling and Analysis for Metals Metals can form lipid-soluble organo-metallic ions, involving Hg, As, Sn, Tl, and Pb, capable ... Fax 80 0 73 0-2 215.) © 2002 by CRC Press LLC 48 Environmental Sampling and Analysis for Metals Aluminum compounds are used for storing and processing fo...

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... Press LLC 174 Environmental Sampling and Analysis for Metals 12.5 REAGENTS AND STANDARDS 12.5.1 C HEMICALS, STANDARDS, AND REAGENTS • Chemicals and reagents should be ultra-high-purity grades, ... injectors for analyzing organic solvents, and injectors for introducing samples con- taining highly dissolved solids. © 2002 by CRC Press LLC 1 68 Environmental Sampling...

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... LLC 2 18 Environmental Sampling and Analysis for Metals 12. If the analysis request is for suspended and dissolved metal determination, the sample should be filtered prior to preservation and treated ... LLC 204 Environmental Sampling and Analysis for Metals • Collect pipets with suitable volumes and pipet bulbs. • Collect empty bottles for splits, duplica...

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... Preparation for Metals Analysis 235 following metals: Be, Cd, Cr, Co, Pb, Mo, Tl, and V. (Digestion and GrAAS analysis for As, Se, and Ag are different. The digestion procedure for As and Se is ... Press LLC 2 28 Environmental Sampling and Analysis for Metals in approximately 0.5N HCl or 1+1 HNO 3 and rinse with water before use. If the filter is to be dige...

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... 1 983 ) Methods for Determining Organic Compounds in Drinking Water (EPA 600/4 88 –039, December 1 988 ) Standard Methods for the Examination of Water and Wastewater (APHA-AWWA-WPCF, 19th ed., 19 98) ... series if the lab- oratory can meet the performance criteria. 18. 1.3.4 EPA Methods 602, 80 20, 80 21 These methods may include analysis of xylene and methyl-tert-butyl-ether (MT...

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... temperature –40 0 40 80 120 160 200 –40 –20 0 20 40 60 80 100 °F °F 32 98. 6 212 °C 37 °C © 2002 by CRC Press LLC 332 Environmental Sampling and Analysis for Metals Szabo, L., Kevey, B., and Tolgyesi, ... Press LLC 3 18 Environmental Sampling and Analysis for Metals enter the upper, normally empty conduction band of silicon and allow the solid to conduct. This t...

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